Journal articles: 'Cascaded H-bridge Multi-Level Inverter'

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S, Nagashree, and Mrs G. Shashikala. "Design of a Controller Algorithm for Cascaded H- Bridge Multilevel Inverter System for Reduced THD and Improved Performance." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 2467–70. http://dx.doi.org/10.22214/ijraset.2022.42823.

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Abstract: Multi-level inverter have huge advantages than the conventional inverter. This paper proposes 17 level cascaded multilevel inverter with minimum number of semiconductor switches and DC sources. A new controller is designed to trigger the switches of semiconductor devices to obtained the required output. To control the switching sequence of the metal oxide semiconductor field effect transistor(MOSFET) an embedded code is developed. 3- level, 5 -level ,17 -level and 27 -level cascaded H Bridge multi-level inverters are modelled on MATLAB/SIMULINK and Total Harmonic distortion (THD) of each level are compared to show the improved performance. Keywords: H-bridge, multilevel inverter, symmetrical DC-sources, asymmetrical H bridge topology

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Patel, Satish D. "Simulation Based on High Switching Frequency H-Bridge 5-Level Multilevel Inverter Using Level Shifted In Phase Disposition (IPD) Modulation." International Journal for Research in Applied Science and Engineering Technology 13, no. 2 (2025): 569–75. https://doi.org/10.22214/ijraset.2025.66891.

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Analytical solutions of Pulse Width Modulation (PWM) strategies for multilevel Cascaded H-Bridge inverters are presented. These solutions show that the Phase Disposition (PD) PWM strategy for Cascaded H-Bridge Multilevel inverters are presented, When the carrier frequencies are adjusted to achieve the same number of total switch transitions for each inverter over one fundamental cycle. From this understanding, a method is proposed to apply the harmonically superior Phase Disposition (PD) PWM strategy for NPC inverters to Cascaded inverters, to achieve improved harmonic performance for the modulation of cascade inverters. Both theoretical and simulated results are compared and in this paper are archived result on a Simulation Based on High Swishing frequency H-Bridge Multilevel Inverter Using phase shifted Modulation using Matlab software.

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Veeranna, Mr D. S. "A Comparative Study of 9-Level Inverter and 15-Level Multi Inverter for a Grid Connected System." International Journal for Research in Applied Science and Engineering Technology 12, no. 3 (2024): 1659–63. http://dx.doi.org/10.22214/ijraset.2024.59112.

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Abstract: Recently, the emergence of single phase multilevel inverter has been increased due to its advantages over traditional one. Multilevel Inverters [MLI] are the ones which can give out a stepwise output waveform with the use of power electronic switches, power diodes and some DC voltage source which might be a series/parallel connected PV cells, a renewable source or a battery. Multilevel inverters not only produce low harmonic distortion but also decrease the dv/dt stresses on the equipment Multilevel inverters is a good option as the output voltage of a Multilevel inverter is a stepped waveform which approaches a sinusoid providing lesser harmonic distortion. As the number of levels are increased the harmonic distortion reduces but at the same time the number of switching devices and the DC voltage sources required increases, thus increasing the complexity of the system design and control. Multilevel inverter proposed in this paper uses only 7 switches to provide 9 levels and 15 levels of output voltage. A symmetrical Cascaded H bridge Multi level inverter (SCHBMLI) and Asymmetrical Cascaded H bridge Multilevel Inverter (ASCHBMLI) using PD-PWM technique have been analysed in this paper for grid connection. The Asymmetric Cascade H Bridge [ASCHMLI] implemented in real time system using PIC16F877A microcontroller with RL load. This type of proposed system is used for high power applications in photovoltaic and it’s reduce overall cost as well as size of the system.

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Ye, Man Yuan, and Song Li. "Multi-Level Cascaded H-Bridge Inverter Based on Three Harmonic Injection Method." Advanced Materials Research 986-987 (July 2014): 1969–72. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1969.

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This paper introduces seven-level Cascaded H-bridge (CHB) inverter and work principle. Then, the strongpoint and disadvantage of multi-level inverter usual PWM technologies are analyzed and compared. We find that multi-level cascaded inverter based on three harmonic injection method have two advantages via analysis. The voltage modulation index can increase 1.15. The equivalent switching frequency of H-bridge inverter’s load voltage is N times of each cell switching frequency. At last, H-bridge inverter was investigated with simulation and experiment. The results prove that the analysis is correctness and validity.

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Tummala, Suresh Kumar, Kyama Hemalatha, Ibrahim H. Al-Kharsan, and Vijaylakshmi Sajwan. "Performance of 7-level cascade H-bridge multi level inverter driven induction motor drive." E3S Web of Conferences 391 (2023): 01003. http://dx.doi.org/10.1051/e3sconf/202339101003.

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In recent times, many of industrial applications require smooth control over a wide range of speeds or smooth torque control without effecting motor performance and efficiency. So, cascaded H-Bridge multilevel inverters convert the low or medium level voltage to medium or high level of output voltages. In this paper, a cascaded H-Bridge multilevel seven level inverter is operated by using sinusoidal pulse width modulation technique. This PWM technique will improves the smoothness of waveform by reducing the lower order harmonics. And analysed its performances like speed, torque, THD etc.

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Muhammad, Salman, Basit2 Abdul, Ahmad Aemal, Syed Shah zeeshan, and Alam Kamran. "Modeling of Cascaded H-Bridge Multi-level Inverter Having Low Total Harmonic Distortion by using Equal Phase Distribution Method." International Journal of Engineering Works (ISSN: 2409-2770) 6, no. 03 (2019): 84–89. https://doi.org/10.5281/zenodo.2585862.

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Multi-level inverters’ popularity over traditional inverters can be attributed to its low total harmonic distortion. Multi-level inverter is used both for high and low power applications. This study uses Equal phase method to analyze the total Harmonic distortion of 3, 5, 7 and 9 levels by using Cascaded H-Bridge configuration for such analysis. The total harmonic distortions of three, five, seven and nine levels are analyzed, studied and finally their output is compared through fast Fourier transform. Results are acquired by simulating Cascaded H-Bridge Multi-level inverter with MATLAB/Simulink. Simulation results reveal that total Harmonics Distortion reduces as voltage level is increased. Total harmonic distortion for 3, 5, 7 and 9 levels is 41.42, 39.46, 39.40 and 22.50 percent respectively.

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Dhasharatha, Ghughuloth, Rajashekar Varma Nampally, Adwaith Donda, Hussain Shakeer, Gundoji Karthik, and Samineni Harshini. "Novel cascaded switched-diode five level inverter for renewable energy integration." International Journal of Advances in Applied Sciences (IJAAS) 13, no. 2 (2024): 333–39. https://doi.org/10.11591/ijaas.v13.i2.pp333-339.

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This research presents the usage of a unique five-level cascaded switching diode for medium voltage integration of renewable energy sources. Its primary purpose is to decrease the quantity of gate drivers and switches. In addition to that, the cost and space for the installation of multilevel inverters are less. The inverter topology of novel cascaded multilevel inverters and switched diodes will combine both benefits. One-cycle control (OCC), which is used for clock phase-shifting (CPS) to regulate a two-stage container security device (CSD) multilevel inverter of renewable energy integration, was created to address issues with the multilevel inverter's direct current (DC) source variations. The topology also provides efficiency, harmonic distortion reduction, and voltage output quality. Waveforms are created, and a robust resistance to DC source variations is attained. The viability of the unique five-level inverter using cascaded switched diodes is confirmed by discussing the results of both simulation and experiment.

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El-Naggar, Nada Mohamed, Mohamed Adel Esmaeel, and Salama Abu Zaid. "Comparative performance of modular with cascaded H-bridge three level inverters." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 4 (2023): 3847. http://dx.doi.org/10.11591/ijece.v13i4.pp3847-3856.

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The conventional two-level inverter becomes no longer has the ability to cope with the high-power requirement, so this paper discusses two very common topologies of multilevel inverter like modular multi-level converter (MMC) and cascaded H-bridge (CHB) multi-level inverter for induction motor drive applications. This work attempts to investigate the comparison between MMC and CHB. The comparison is done in aspects of the configuration, concept of operation, advantages and disadvantages, the comparison is also consider output voltage (line to line) waveform, total harmonic distortion (THD) of the output line voltage waveform and the current drawn by both inverters. The performance of the inverters under carrier-based pulse width modulation (PWM) technique and mainly in-phase disposition (IPD), level shifted pulse width modulation is viewed. The paper discusses the comparison between the two multilevel inverters (MLIs) with motor drive applications especially induction motor. The operation of the motor is studied under certain value of load torque. The simulation results for the induction motor with the two inverters (modular multi-level and Cascaded H-bride) for three numbers of levels using MATLAB/Simulink are provided). The obtained results are encouraging and promising especially in the improvement of the THD% results.

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Muhammad, Tila, Adnan Umar Khan, Hanif Jan, Muhammad Yasir Usman, Junaid Javed, and Arsalan Aslam. "Cascaded Symmetric Multilevel Inverter with Reduced Number of Controlled Switches." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 2 (2017): 795. http://dx.doi.org/10.11591/ijpeds.v8.i2.pp795-803.

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Multilevel inverters have become popular among high power converters for the past few years due to their high quality output waveform and low total harmonic distortions (THD). In addition, the filter size also reduces significantly to achieve a pure sine wave output. Cascaded H-Bridge topology has been recognized as the most promising among various classical topologies for multi-level inverters on the basis of its modular form and ease of design, troubleshooting, packaging and high power capabilities. However, a large number of switches are required in cascaded H-Bridge multilevel inverter that leads to larger system losses and an increase in cost. In this paper the modified cascaded topology is proposed to reduce the number of controlled switches without affecting the resolution of output waveform or the number of voltage levels. We achieved this by replacing some of the high cost controlled transistor switches with diodes, in the cascaded H-Bridges. Furthermore, equal voltage source sharing is also possible by using the proposed topology. Hence the proposed inverter is a type of cascaded multilevel inverter with reduced switches, better modular structure, low cost and high efficiency. The inverter design is validated using simulations and tested on hardware prototype.

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Mohamed Ahmed, Penrose Cofie, John Fuller, and Charlie Tolliver. "THD analysis and cost comparison for an N-level H-bridge inverter incorporating passive and active filters." World Journal of Advanced Engineering Technology and Sciences 5, no. 2 (2022): 045–53. http://dx.doi.org/10.30574/wjaets.2022.5.2.0043.

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Multilevel H-bridge inverters have grown in popularity in electronic direct current (DC) to alternating current (AC) power conversion. In the renewable energy field, H-bridge inverters are used for converting DC voltage obtained from solar panels to AC voltage. However, H-bridge inverters produce undesirable odd harmonics in their output. Several H-bridges are, therefore, usually cascaded to reduce the total harmonic distortion (THD) in their output, but the results aren’t satisfactory in most cases. In this paper, both active and passive filters are incorporated in a cascaded H-bridge inverter to reduce the THD further. Then cost comparison is made of cascaded H-bridge inverters (3, 5, 7, 9, and 11-levels) without a filter and multilevel cascaded H-bridge inverters (3, 5, 7, 9, and 11-levels) with a passive filter or active filter. Powersim (PSIM) platform is used to perform the THD analysis.

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Banka, Sujatha, Chava Sunil Kumar, Surender Reddy Salkuti, et al. "Analysis and simulation of 7-level and 9-level cascaded H-bridge multi-level inverters." International Journal of Applied Power Engineering (IJAPE) 14, no. 1 (2025): 11. https://doi.org/10.11591/ijape.v14.i1.pp11-22.

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Multi-level inverters (MLIs) have created a new revolution in high-power and medium-voltage applications in industry and research. In recent years, cascaded multi-level inverters have gained significant interest due to their ability to generate high-quality output waveforms with reduced total harmonic distortion (THD). This paper discusses the analysis and simulation of 7-level and 9-level cascaded H-bridge multi-level inverters using mathematical models and simulation tools. The proposed research puts emphasis on evaluating the performance and control strategies of these inverters. The control strategies, including pulse width modulation (PWM) techniques, are discussed in depth, with a focus on their effect on output waveform quality and reduction of THD. The simulation results are compared to showcase the advantages offered by the cascaded multi-level inverters in terms of waveform quality. The findings demonstrate the superior performance and power quality advantages offered by these multi-level inverters compared to traditional two-level inverters. Additionally, a passive LC filter is designed and implemented along with a multi-level inverter configuration that helps to keep the THD within the limits specified by IEEE standards.

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Banka, Sujatha, Chava Sunil Kumar, Surender Reddy Salkuti, et al. "Analysis and simulation of 7-level and 9-level cascaded H-bridge multi-level inverters." International Journal of Applied Power Engineering (IJAPE) 14, no. 1 (2025): 11–22. https://doi.org/10.11591/ijape.v14.i1.pp11-22.

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Multi-level inverters (MLIs) have created a new revolution in high-power and medium-voltage applications in industry and research. In recent years, cascaded multi-level inverters have gained significant interest due to their ability to generate high-quality output waveforms with reduced total harmonic distortion (THD). This paper discusses the analysis and simulation of 7-level and 9-level cascaded H-bridge multi-level inverters using mathematical models and simulation tools. The proposed research puts emphasis on evaluating the performance and control strategies of these inverters. The control strategies, including pulse width modulation (PWM) techniques, are discussed in depth, with a focus on their effect on output waveform quality and reduction of THD. The simulation results are compared to showcase the advantages offered by the cascaded multi-level inverters in terms of waveform quality. The findings demonstrate the superior performance and power quality advantages offered by these multilevel inverters compared to traditional two-level inverters. Additionally, a passive LC filter is designed and implemented along with a multi-level inverter configuration that helps to keep the THD within the limits specified by IEEE standards.

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Sathish Kumar, S., R. Ramkumar, S. Sivarajeswari, D. Ramya, T. Subburaj, and Martin Sankoh. "Performance Enhancement of a Three Phase Boost-Cascaded Fifteen Level Inverter Using the PI Controller." Mathematical Problems in Engineering 2022 (May 19, 2022): 1–17. http://dx.doi.org/10.1155/2022/3888571.

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Photovoltaic power generation is a potential alternative energy source that offers several benefits over other alternative energy sources such as wind, sun, ocean, biomass, geothermal, and so on. Multilevel inverters are essential for power conversion in solar power generation. These multilevel inverters employ three distinct topologies: diode-clamped (neutral-point clamped) inverter, capacitor-clamped (flying capacitor) inverter, and cascaded H-bridge multilevel inverter. The cascaded H-bridge multilevel inverter is more appropriate for photovoltaic applications than the other two topologies. The proposed system asymmetrical cascaded multilevel inverter (ACMLI) is energized using a photovoltaic system (PV). A three-phase cascaded H-bridge fifteen-level inverter for grid-connected solar systems is given in this study utilizing a proportional integral controller. The harmonic distortion was removed using a multicarrier pulse width modulation method. The MATLAB/Simulink is used to simulate the performance of a three-phase cascaded H-bridge fifteen-level inverter in terms of harmonic content and number of switches. To test the performance of the designed system, a hardware prototype was created. From the obtained results, the proposed method reduces the switch count, harmonic distortion, and rejects the external disturbances of input and output variables.

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Ye, Man Yuan, Song Li, and Wen Hua Hu. "Study of Multi-Level Inverter Staircase Modulation Technology." Applied Mechanics and Materials 347-350 (August 2013): 1540–43. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1540.

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With the rapid development of high-voltage large-capacity converters, multi-level inverter has been more widely used. Cascaded H-bridge multi-level inverter topology and using the trapezoidal modulation technique are described in this paper. The trapezoidal modulation of the H-bridge cascaded inverter is simulation studied with Matlab simulation software. This paper analyzes trapezoidal modulation techniques, how to establish the elimination of specific harmonics of nonlinear equations and the equations of Runge-Kutta algorithm to solve the problem, given in the different modulation to eliminate the 5th and 7th harmonic of the switching angle data. Finally, simulation results show the feasibility and correctness of the trapezoidal modulation of selective harmonic elimination technique.

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Venkateshwarlu, Dr S., N. Koushik, V. Ravi Prasad, and Ch Sai Karthik. "Comparative Analysis of 5-Level and 7-Level Single-Phase Cascaded H-bridge Multilevel Inverters." CVR Journal of Science and Technology 26, no. 1 (2024): 54–61. http://dx.doi.org/10.32377/cvrjst2609.

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The demand for high-performance, efficient, and reliable power electronic systems has been steadily increasing in various industrial applications, including renewable energy systems, electric vehicles, and smart grids. In response to this demand, the Cascaded H-Bridge Multi-level Inverter (CHB-MLI) has emerged as a promising solution, offering advantages such as improved voltage waveform quality, reduced harmonic distortion, and enhanced power handling capabilities. The CHB-MLI is characterized by its modular structure, comprising multiple H-bridge cells cascaded in series. Each H-bridge cell operates with a separate DC power source, enabling the generation of stepped voltage levels at the inverter output. By intelligently controlling the individual H-bridge cells, the CHB-MLI achieves the synthesis of a high-quality multilevel output voltage waveform. The different multi-level inverter topologies are Diode-Clamped MLI, Capacitor-Clamped MLI and Cascaded H-bridge MLI. This paper focused on key aspects like design, simulation, control strategies, performance evaluation, overall comparison and analysis of 5-level and 7-level CHB-MLIs. By addressing these aspects, this paper aimed to contribute to the advancement of power electronics technology and promote the adoption of the CHB-MLI in real-world applications, fostering energy efficiency and sustainability in power conversion systems. Index Terms: Inverter, Multi-level inverter, CHBMLI, switching, SPWM, MCSPWM, gate signal, waveform, harmonics, THD, MATLAB.

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A., A. Zulkefle, I. A. Rahman A., Zainon M., et al. "Modeling and Simulation of Nine-Level Cascaded H-Bridge Multilevel Inverter." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 2 (2018): 696–703. https://doi.org/10.11591/ijeecs.v11.i2.pp696-703.

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This paper analyzed a single phase nine level cascaded h-bridge multilevel inverter (CHMLI) topology in which requires lesser number of components and easier to control if compared to other methods. The inverter of different voltage levels (up to 9-Levels) are designed and simulated using MATLAB Simulink. A Level Shifted Multi-Carrier PWM control scheme is used to control the operation of the power switches for CHMLI topology. The results are compared in terms of THD. The value of THD is found to be reduced as the number of voltage level of CHMLI is increased.

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Devika, M., M. Sundaraperumal, and M. Valan Rajkumar. "Simulation of Quasi Cascaded H-Bridge Five-Level Boost Inverter." International Journal Of Engineering And Computer Science 7, no. 03 (2018): 23727–36. http://dx.doi.org/10.18535/ijecs/v7i3.13.

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Multilevel inverters have become more attractive for researchers due to low total harmonic distortion in the output voltage and low electromagnetic interference. This paper proposes a novel single-stage quasi-cascaded H-bridge five-level boost inverter. The proposed quasi cascaded h-bridge five-level boost inverter has the advantages over the cascaded H-bridge quasi-Z-source inverter in cutting down passive components. Consequently, size, cost, and weight of the proposed inverter are reduced. A capacitor with low voltage rating is added to the proposed topology to remove an offset voltage of the output AC voltage when the input voltages of two modules are unbalanced. Besides, sinusoidal pulse width modulation techniques used here. PID controller is used to control the capacitor voltage of each module. This paper presents circuit analysis, the operating principles, and simulation results of the proposed system

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Rao J., Srinivas, Tummala Suresh Kumar, Hassan Mohmmed Al-Jawahry, and Manisha Saini. "Comparative Exploration of 19-level and 21-level Cascaded H- Bridge MLI with Cross H-Bridge MLI." E3S Web of Conferences 391 (2023): 01172. http://dx.doi.org/10.1051/e3sconf/202339101172.

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Present days renewable energy sources based grids are developing which needs inverters to convert power from DC to AC. 2-level inverters were used for this purpose to overcome the drawbacks of 2-level inverters multilevel inverters are developed. Because of the combination of numerous devices in a series structure, multilevel inverters provide outstanding solutions to high voltage, high power applications. With the use of suitable simulations and mathematical analysis, this paper compares the performance of 19 and 21-level cascaded H-Bridges with cross H-Bridge MLI. Total Harmonic Distortion levels, switching device count, and inverter output voltage and current are all compared. The primary issues brought up in this study are limitations of a number of switching devices that can support high voltage in the inverter. The benefit of this research is that it identifies the right inverter that can be utilised for real-time applications by taking the variables into account. The count of switching devices, output voltage, current, and harmonic distortion, among other factors. The Matlab/Simulink Platform is used to validate the analysis.

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Yousfi, Abdelkader, Youcef Bot, Fayçal Mehedi, and Abdelkader Chaker. "Current model predictive control for three-phase active power filter using cascaded H-bridge multilevel converter." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 714–22. https://doi.org/10.11591/ijeecs.v21.i2.pp714-722.

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Different technologies in particular in the medium and high-power conversion were implemented and taken into consideration in the last few years. These inverter topologies have been demonstrated to ensure the generation of high-quality voltage waveforms based on power half-conductor switches, which operate on the fundamental frequency. The multilevel inverter H-bridge is a promising alternative among the available multi-level inverter topologies. A predictional current control algorithm for multi-level converters and use on a three-phase cascaded inverter H-bridge. This article reports on a comparison of two check methods associated with a shunt active power filter based on the cascaded inverter of the three-Level type. The first approach is the traditional PI control unit and the second is the predictive current control unit. The reference current for the shunt active power filter is provided by the p-q control strategy for reactive power compensation and current harmonics. The cascade-type three-level inverter has more advantages over a two-leaved inverter; the simulation output of APF is checked by MATLAB/Simulink. The predictive controlled the APF associated with the three-level inverter shows more performances and efficiency compared to the conventional control algorithms.

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Janiga, Srinivas Rao, and Suresh Kumar Tummala. "7-Level Semi Cross Switched Multilevel Inverter Fed Induction Motor Drive." E3S Web of Conferences 184 (2020): 01075. http://dx.doi.org/10.1051/e3sconf/202018401075.

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Multilevel inverters have more prominent features than 2-level inverter due to various advantages like voltage quality, low EMI etc. The semi cross switched multilevel converter topology need less number of semiconductor switches compared to cascaded H-bridge multilevel inverter, and can be implemented to any number of voltage levels. The operating modes of 7-level semi cross switched multi level inverter are discussed. Three phase seven level inverter fed induction motor is implemented in MATLAB/SIMULINK.

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Rezini, Saliha, and Zin-Eddine Azzouz. "Contribution of Multilevel Inverters in Improving Electrical Energy Quality: Study and Analysis." European Journal of Electrical Engineering 23, no. 3 (2021): 255–63. http://dx.doi.org/10.18280/ejee.230310.

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The work proposed in this paper concerns the study of harmonic pollution generated by static converters, particularly inverters, which largely contributes to the degradation of the supplied electrical energy quality. So, we studied in first the EMC of the conventional two-level inverter to highlight the harmful pollution of this kind of converter. We then looked at multi-level inverters to characterize their degree of pollution according to their number of levels in order to propose practical solutions for industrial applications. Thus, we considered three structures of multi-level inverters namely: a diode clamped inverter, a flying capacitor clamped inverter and a cascaded h-bridge inverter. At the end of this study, we retain that these three structures make it possible to obtain a waveform of the output voltage close to the sinusoidal form. The results of simulation obtained and compared to the STD international standard templates, also allowed us to conclude that among the three structures studied the cascaded h-bridge inverter is the most interesting from the electrical energy quality point of view. In addition, this converter has the advantage of owning a reduced number of switches which results in a weight and a cost, better than those of the other two studied inverters.

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Sourabh, Rathore, Kumar Kirar Mukesh, and K. Bhardwaj S. "SIMULATION OF CASCADED H- BRIDGE MULTILEVEL INVERTER USING PD, POD, APOD TECHNIQUES." Electrical & Computer Engineering: An International Journal (ECIJ) 4, no. 3 (2015): 27–41. https://doi.org/10.5281/zenodo.3581796.

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Multilevel inverter (MLI) can achieve medium voltage high power efficiency inverters in industrial application. It can generate stepped waveform by reducing harmonic distortion with increase in the number of voltage level; a full bridge is known as H-bridge inverter because it shows alphabet ‘H’. In this paper, Multicarrier PWM topologies and there Modulation schemes are discussed. Level Shifted [LS] Scheme is applied to the Cascade H-bridge multilevel inverter and the complete analysis of THD to 9 levels is done.

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Sajan, CH. "Implementation of 7-Level and 31-Level Cascaded H-Bridge Multilevel Inverters with Reduced Number of Semiconductor Switches." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 4868–74. http://dx.doi.org/10.22214/ijraset.2021.36031.

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Multilevel inverters are widely used because of its increased power rating with reduced harmonics and electromagnetic interference. The proposed 7-level cascaded H-Bridge inverter is symmetrical in nature and uses equal sources of DC voltage. Whereas 31-level cascaded H-Bridge inverter is asymmetrical in nature and uses unequal sources of DC voltage. The PD-PWM modulation technique was used here to achieve switching sequence. The proposed idea was validated through simulation and the results provide better efficiency, fewer low order harmonics and lower switching losses. The proposed topology is simulated using MATLAB / SIMULINK.

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Chitare, Durgadas Ashok. "Dynamic Voltage Restorer Employing Multi Level Cascaded H-Bridge Inverter." International Journal for Research in Applied Science and Engineering Technology 8, no. 6 (2020): 433–38. http://dx.doi.org/10.22214/ijraset.2020.6065.

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Satya, Subrahmanya Ajay Dangeti, Kishore Patnaik Sekharamantry Chaitanya, Kowshik Bayanti Venkata, A. Raju Ch B., Ramachandra Murthy KVS, and Tirupathi Abhilash. "A cascaded converter using hybrid cells and H-bridge structure." Bulletin of Electrical Engineering and Informatics 10, no. 6 (2021): 2972–79. https://doi.org/10.11591/eei.v10i6.2783.

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This paper introduces a cascaded converter structure using hybrid two-level cells to form a single-phase seven-level inverter. Compared to various conventional and existing multilevel (MLI) topologies, this topology requires a lower number of devices. It uses several DC sources integrated in two-stage cells to provide the required voltage. In this topology, the DC-link condensers are not necessary. The modes of operation and modulation of the structure proposed are described in depth. Finally, in the MATLAB/Simulink platform  the new topology is evaluated and the results reported.

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Rao, J. Srinivas, Suresh Kumar Tummala, and Narasimha Raju Kuthuri. "Comparative investigation of 15 Level and 17 level cascaded h-bridge MLI with cross h-bridge MLI fed permanent magnet synchronous motor." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 723. http://dx.doi.org/10.11591/ijeecs.v21.i2.pp723-734.

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Multilevel inverters offers eminent solutions to high voltage high power applications due to the association of several devices in a series configuration. In this paper, a comparative investigation of both 15 and 17 level cascaded h-bridge multi level inverter with cross h-bridge fed permanent magnet synchronous motor are presented by appropriate simulations and mathematical analysis. Comparative analysis includes Inverter output voltage and current, number of switching devices, stator current and speed of PMSM and total harmonic distortion levels. Limitation of several switching devices, which can afford high voltage in the inverter is the major problems raised in this study. The advantage of this analysis is to figure out the appropriate inverter that can be used for real time application by considering the factors via. Harmonic distortion, output voltage, current, number of switching devices etc. Validation of the analysis is processed through matlab/simulink platform.

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Ramasamy, Palanisamy, Vidyasagar Sugavanam, Kalyanasundaram Vakesan, et al. "Implementation of multicarrier PWM based 7-level Z-source cascaded H-bridge inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 1 (2022): 322. http://dx.doi.org/10.11591/ijpeds.v13.i1.pp322-329.

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This paper elucidates the realization of multicarrier pulse width modulation (MC-PWM) based 7-level Z-source cascaded H-bridge inverter. MC-PWM technique is developed to generate switching pulses for Z-source inverter; it leads to boost the inverter output voltage with help of shoot through mode of operation. The output of Z-source inverter is connected to 7-level cascaded H-bridge inverter. Cascaded H-bridge inverter system much suitable for AC load drive, high voltage and high power and industrial applications. This proposed system provides reduced total harmonic distortion, improved stepped output voltage and current, nearly sinusoidal output voltage and reduced voltage stress across the switching devices. The inductors and capacitors values are selected based on the boosting level of Z-source inverter. The simulation results of proposed 7-level Z-source cascaded H-bridge inverter with MC-PWM technique is verified using MATLAB/Simulink.

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Mr., Vaibhav Kharat. "REVIEW OF SOLAR POWER GENERATION WITH SEVEN-LEVEL INVERTER." IJIERT - International Journal of Innovations in Engineering Research and Technology 3, no. 5 (2016): 65–70. https://doi.org/10.5281/zenodo.1463772.

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Multilevel Inverter,specially cascaded H - bridge type is becoming more applicable now - a - days due to their improved voltage and current waveforms. This system is composed of dc/dc power converter and a new seven - level inverter. The dc/dc power converter integrates a dc - dc boost converter and a transformer to convert the output voltage of the solar cell array into two independent voltage sources with multiple relationships. Seven level inverter is configured using capacitor selection circuit and a full - bridge power converter,connected in cascade. The capacitor selection circuit convert the two output voltage sources of dc - dc converter into a three - level dc voltage,and full bridge power converter further converts this three - level dc voltage into a seven - level ac voltage. Likewise sinusoidal output generated which is in phase with the utility voltage and fed into the utility. The salient feature of above converter is it require only six power electronic switches and only one power electronic switch is switches at high frequency at any time. In this paper review of seven level invertor has been done. https://www.ijiert.org/paper-details?paper_id=140857

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29

Ibrahim, Danny, and Kais Aboud. "Multi-level inverter for driving PV water pumps." Association of Arab Universities Journal of Engineering Sciences 27, no. 4 (2020): 62–71. http://dx.doi.org/10.33261/https://doi.org/10.33261/jaaru.2020.27.4.006.

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In this research, we have developed a system for driving PV water pumps based on multi-level inverters, where cascaded H-Bridge-MLI was studied to improve conversion efficiency, by testing three different strategies to generate pulses for electronic elements and determining the best strategy between them, then compare it with the traditional 2-LEVEL inverter circuit. The results showed the superiority of Phase Disposition (PD-PWM) strategy, where the THD Ratio of the voltage and current wave was minimal compared to the other strategies at different carrier wave frequencies in addition to studying the effect of the number of voltage levels on THD Ratio, and when we simulated a three phase (Cascaded H-Bridge 7 level) inverter circuit based on PD-PWM strategy at 3000 Hz carrier wave frequency, the THD Ratio of voltage wave has not exceed 11%, While in the traditional 2-LEVEL inverter, the THD Ratio of voltage wave is about 66%, which shows the importance of MLI to improve conversion efficiency. The proposed driving system operates according to the v / f control system to control the pump speed in proportion to the intensity of the solar radiation while maintaining a constant torque, and also works to track the maximum power point MPPT according to P&O algorithm, and when we simulated the system by MATLAB / SIMULINK the results showed the effectiveness and reliability of the proposed system

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Nandhini, Thambidurai, and C. Sankar. "Design and Simulation of PV Powered Nine Level Cascaded Multilevel Inverter Using Embedded System." Applied Mechanics and Materials 622 (August 2014): 59–64. http://dx.doi.org/10.4028/www.scientific.net/amm.622.59.

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This paper focuses on the development of open and closed loop system for nine level cascaded H-Bridge multilevel inverter (CHBMLI). Inverters are often used to provide power to electronics in case of a power outage where no power is available. An inverter converts a DC voltage into an AC voltage. But main drawbacks of these inverters are high harmonic content and limited power applications. This is the main problem identified in conventional system. In order to overcome this problem, a new topology of CHBMLI is presented, which increases the level number of output waveform and thereby reduces the low-order harmonics and THD. The proposed system consists of a PV module, DC-DC converter with capacitor filter and DC-AC multilevel inverter. In this paper, an equal pulse width modulation (E-PWM) technique, applicable for proposed CHBMLI is presented. The proposed nine level cascaded H-bridge multilevel inverter achieves higher power ratings, and also enables the use of renewable energy sources in an efficient manner. Simulation results are compared with theoretical results.Index terms- cascaded H-bridge multilevel inverter (CHBMLI); Equal pulse width modulation (EPWM); Total harmonic distortion (THD); Photovoltaic (PV); Separate DC sources (SDCS).

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31

Gangadhara, Nayana, and Savita D. Torvi. "Harmonic reduction techniques in renewable energy distribution systems using cascaded multilevel inverters: a comparative analysis." International Journal of Power Electronics and Drive Systems 16, no. 1 (2025): 76–85. https://doi.org/10.11591/ijpeds.v16.i1.pp76-85.

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Penetration of renewable energy in distribution generation increases power quality in the output. The harmonics inherent in the inverters are a major contributor to the power quality issues in the distribution system. Multilevel inverters are used to get rid of the harmonics inherent in the inverter output. Among the multilevel inverter topology cascaded multilevel inverters have taken center stage due to their simple topology and control with lesser components. This paper reviews different multilevel inverter topologies that have led to cascaded multilevel inverter topology and applies pulse width modulation (PWM) techniques to the topology. Phase disposition PWM technique is applied on the cascaded H-bridge multilevel inverter (MLI) topology for 5-level, 7-level, and 9-level inverter topologies. The total harmonic distortion (THD) obtained for these topologies is compared with and without the use of an LC filter in the inverter output. PWM techniques including phase disposition, for five-level, seven-level, and nine-level MLI methods are applied on the cascaded multilevel inverter and results are compared for harmonic reduction in the inverter output.

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Rasheed, Mohammed, Rosli Omar, and Marizan Sulaiman. "Harmonic Reduction in Multilevel Inverter Based on Super Capacitor as a Storage." TELKOMNIKA Indonesian Journal of Electrical Engineering 16, no. 3 (2015): 520. http://dx.doi.org/10.11591/tijee.v16i3.1643.

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Cascaded H-Bridge multilevel inverter has become more attractive to generate high power in an electrical distribution system. This paper discusses the control of five level cascaded H-bridge multilevel inverter with super capacitor as a Dc energy storage. The control of the multilevel inverter using PI and space vector pulse width modulation (SVPWM) controllers based on the modelling and Simulink of cascaded H-bridge can observe the effectiveness of the proposed control to reduce harmonic contents of the multilevel inverter output. High frequency ripple from the inverters can be removed from the system using low voltage filter. Total harmonic distortion (THD) for both current and voltage is quite low to meet the IEEE standard. Modelling of the system has been done using MATLAB/Simulink.

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33

Usha, S., C. Subramani, and A. Geetha. "Performance Analysis of H-bridge and T-Bridge Multilevel Inverters for Harmonics Reduction." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (2018): 231. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp231-239.

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This paper deals with the design of cascaded 11 level H- bridge inverter. It includes a comparison between the 11 level H-bridge and T-bridge multilevel inverter. The cascaded inverter of higher level is a very effective and practical solution for reduction of total harmonic distortion (THD).These cascaded multilevel inverter can be used for higher voltage applications with more stability. As the level is increased the output waveform becomes more sinusoidal in nature. The inverter is designed using multicarrier sinusoidal pulse width modulation technique for generating triggering pulses for the semiconductor switches used in the device. Through this paper it will be proved that a cascaded multilevel H-bridge topology has higher efficiency than a T-bridge inverter, as whichever source input voltage is provided since input is equal to the output voltage. In T-bridge inverter, the output obtained is half of the applied input, so efficiency is just half as compared to H-bridge. The output waveform is distorted and has higher THD. The simulation is performed using MATLAB /Simulink 2013 software.

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34

Hasabelrasul, Hashim, and Xiangwu Yan. "Comparison of Multicarrier PWM Techniques for Cascaded H-Bridge Multilevel Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 2 (2017): 861. http://dx.doi.org/10.11591/ijpeds.v8.i2.pp861-868.

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One of the preferred choices of electronic power conversion for high power applications are multilevel inverters topologies finding increased attention in industry. Cascaded H-Bridge multilevel inverter is one of these topologies reaching the higher output voltage, power level and higher reliability due to its modular topology. Level Shifted Carrier Pulse Width Modulation (LSCPWM) and Phase Shifted Carrier Pulse Width Modulation are used generally for switching cascaded H-bridge (CHB) multilevel inverters. This paper compares LSCPWM and PSCPWM in terms of total harmonics distortion (THD) and output voltage among inverter cells. Simulation for 21-level CHB inverter is carried out in MATLAB/SIMULINK and simulation results are presented.

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Baimel, Dmitry, Raul Rabinovici, and Saad Tapuchi. "Hybrid thirteen level cascaded H-bridge inverter." Electrical Engineering 98, no. 3 (2015): 207–17. http://dx.doi.org/10.1007/s00202-015-0356-z.

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36

Maheshwari, Aneel Kumar, Mukhtiar Ahmed Mahar, Abdul Sattar Larik, and Abdul Hameed Soomro. "Design and Analyses of Multi-Carrier Pulse Width Modulation Techniques for Double Level Circuit Based Cascaded H-Bridge Multilevel Inverter." European Journal of Electrical Engineering 23, no. 2 (2021): 131–36. http://dx.doi.org/10.18280/ejee.230206.

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The paper introduces the cascaded H-Bridge multi-level inverter with single-phase arrangement connected series with full-bridge inverter and CHBMLI configuration integrated with Double level circuit is proposed to reduce the harmonic distortion to get high power quality. In the proposed configuration, a half-bridge inverter has been implemented to increase the output voltage waveform nearly twice as compared with the conventional Cascaded H-Bridge MLI. For high Power quality, the output voltage waveform with the reference of sinusoidal, the phase opposition disposition carrier arrangement has been utilized in PWM for producing gate pulse of switches. The high waveform of output voltage achieved with the less no of switches, less % THD distortion, less conduction and switching losses. The purposed symmetrical model of CHBMLI is successfully verified using MATLAB based on simulation with DLC configuration.

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37

Palanisamy, Ramasamy, Sugavanam Vidyasagar, Vakesan Kalyanasundaram, et al. "Implementation of multicarrier PWM based 7-level Z-source cascaded H-bridge inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 1 (2022): 322–29. https://doi.org/10.11591/ijpeds.v13.i1.pp322-329.

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This paper elucidates the realization of multicarrier pulse width modulation (MC-PWM) based 7-level Z-source cascaded H-bridge inverter. MC-PWM technique is developed to generate switching pulses for Z-source inverter; it leads to boost the inverter output voltage with help of shoot through mode of operation. The output of Z-source inverter is connected to 7-level cascaded H-bridge inverter. Cascaded H-bridge inverter system much suitable for AC load drive, high voltage and high power and industrial applications. This proposed system provides reduced total harmonic distortion, improved stepped output voltage and current, nearly sinusoidal output voltage and reduced voltage stress across the switching devices. The inductors and capacitors values are selected based on the boosting level of Z-source inverter. The simulation results of proposed 7-level Z-source cascaded Hbridge inverter with MC-PWM technique is verified using MATLAB/Simulink.

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38

Nada, Mohamed El-Naggar, Adel Esmaeel Mohamed, and Abu-Zaid Salama. "Comparative performance of modular with cascaded H-bridge three level inverters." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 4 (2023): 3847–56. https://doi.org/10.11591/ijece.v13i4.pp3847-3856.

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The conventional two-level inverter becomes no longer has the ability to cope with the high-power requirement, so this paper discusses two very common topologies of multilevel inverter like modular multilevel converter (MMC) and cascaded H-bridge (CHB) multilevel inverter for induction motor drive applications. This work attempts to investigate the comparison between MMC and CHB. The comparison is done in aspects of the configuration, concept of operation, advantages and disadvantages, the comparison is also considering output voltage (line to line) waveform, total harmonic distortion (THD) of the output line voltage waveform and the current drawn by both inverters. The performance of the inverters under carrier-based pulse width modulation (PWM) technique and mainly in-phase disposition (IPD), level shifted pulse width modulation is viewed. The paper discusses the comparison between the two multilevel inverters (MLIs) with motor drive applications especially induction motor. The operation of the motor is studied under certain value of load torque. The simulation results for the induction motor with the two inverters (modular multilevel and Cascaded H-bride) for three numbers of levels using MATLAB/Simulink are provided). The obtained results are encouraging and promising especially in the improvement of the THD% results.

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39

Natarajan, Suresh, and R. Samuel Rajesh. "Comparison Of Cascaded H-bridge Inverters for Harmonic Mitigation Considering Various Loads." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 1 (2017): 10. http://dx.doi.org/10.11591/ijpeds.v8.i1.pp10-19.

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This paper compares the reduction of harmonics in various level cascaded H-bridge inverters. The switching angles for the cascaded H-bridge inverter were calculated by evolutionary optimization technique. Fourier analysis is used to determine the switching angles for the desired electrical parameters. Lower order harmonics such as third, fifth, seventh, ninth and eleventh order harmonics were taken into consideration to reduce the total harmonic distortion. Simulation was done for thirteen, fifteen and seventeen level cascaded H-bridge inverters using Matlab. Total harmonic distortion of voltage and current for R, RL and Motor load were analyzed.

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Adnan, Hussein Ali, Salman Hamad Hassan, and Abdulwahhab Abdulrazzaq Ali. "An adaptable different-levels cascaded h-bridge inverter analysis for PV grid-connected systems." International Journal of Power Electronics and Drive System (IJPEDS) 10, no. 2 (2019): 831–41. https://doi.org/10.11591/ijpeds.v10.i2.pp831-841.

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Multi-level inverters (MLIs), have gained popularity in the last few years as a result of their low total harmonic distortions (THD) as well as their output waveform which is of high quality. The converter which considers more appropriate for applications of photovoltaic (PV) beyond the varying MLIs arrangements is the Cascaded H-Bridge-(CHB) (MLI), meanwhile each PV panel may be served as an independent DC supply for any CHB unit. Through the use of MATLAB/Simulink, the efficiency of symmetrical single phase MLI in terms of the number of switches, harmonic content in addition to the stresses of voltage through the switches that exist at photovoltaic cell by means of input source is enhanced; varying parameters like output current, voltage and power, and THD at 5-level 7-level and 9-level Cascaded MLI are observed. In this paper, attention is paid to a multi-level topologies which is flexible and based on cascaded MLI intended for PV grids connected system. An observation of the output voltage becomes closer to the sine wave as the levels increase, while the increase in the levels of Cascaded Multilevel Inverter causes the total harmonic distortion to decrease.

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Espinosa, Eduardo, Pedro Melín, Carlos Baier, José Espinoza, and Hugo Garcés. "An Efficiency Analysis of 27 Level Single-Phase Asymmetric Inverter without Regeneration." Energies 14, no. 5 (2021): 1459. http://dx.doi.org/10.3390/en14051459.

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For medium voltage applications, multilevel inverters are used. One of its classic topologies is the Cascaded H-Bridge, which requires isolated DC voltages to work. Depending on the DC voltage ratio used in the Cascaded H-bridge can be classified into symmetric and asymmetric. In comparison between symmetric and asymmetric inverters, the latter can generate an AC output voltage with more output voltage levels. DC voltage ratio most documented are binary and trinary. The last can generate an AC voltage of 3n = 27 levels is obtained, using n = 3 inverters in cascade and NLM modulation, which generates a flow power of the load to the inverters (regeneration). This work analyzes the semiconductor losses (switching and conduction) and the THD of the AC output voltage in function of index modulation, considering a non-regenerative modulation technique for a 27-level single-phase asymmetric inverter. To confirm the theoretical analyzes, simulation and experimental results are shown.

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42

Lu, Zheng, and Ju Xian Chen. "SVPWM Control of Cascaded H-Bridge Multilevel Inverters." Applied Mechanics and Materials 246-247 (December 2012): 797–800. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.797.

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To solve the problem of computational complexity in H bridge cascaded multilevel inverter (HBCMI) control, this paper proposes a simple space vector pulse width modulation control algorithm. Base on the topology configuration of HBCMI, the output voltage is deduced, which is the difference value between two-level inverter group output voltage formed by left bridge arms and by right bridge arms. The control complexity is independent of inverter voltage level and it is suitable to every voltage level. To verify the algorithms, different level cascaded H-bridge inverter drive systems were constructed and simulation results are present.

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Iti, Mahashabdey* Prof. Pawan Pandey. "HARMONIC ANALYSIS OF MULTILEVEL INVERTER." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 8 (2016): 659–66. https://doi.org/10.5281/zenodo.60113.

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This paper present the different levels of cascaded H-bridge inverters and the minimization of total harmonic distortion by increasing levels. Selective Harmonic Elimination technique is used as a switching scheme. The analysis of three, five and seven level cascaded H-bridge inverter simulation work is done by using the MATLAB software and experimental results have been presented to validate the theory. The simulation results show the improvement of output voltage waveform and reduction of the THD by increasing the levels in inverter. 

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Rao, J. Srinivas, Suresh Kumar Tummala, and Narasimha Raju Kuthuri. "Comparative investigation of 15 level and 17 level cascaded HBridge MLI with cross H-Bridge MLI fed permanent magnet synchronous motor." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 723–34. https://doi.org/10.11591/ijeecs.v21.i2.pp723-734.

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Multilevel inverters offers eminent solutions to high voltage high power applications due to the association of several devices in a series configuration. In this paper, a comparative investigation of both 15 and 17 level cascaded H-Bridge multi level inverter with cross H-Bridge fed permanent magnet synchronous motor are presented by appropriate simulations and mathematical analysis. Comparative analysis includes Inverter output voltage and current, number of switching devices, stator current and speed of PMSM and total harmonic distortion levels. Limitation of several switching devices, which can afford high voltage in the inverter is the major problems raised in this study. The advantage of this analysis is to figure out the appropriate inverter that can be used for real time application by considering the factors via. Harmonic distortion, output voltage, current, number of switching devices etc. Validation of the analysis is processed through Matlab/Simulink Platform.

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45

Sivakumar, N., and A. Sumathi. "Fuzzy Logic Controller for Cascaded H-Bridge Multilevel Inverter." IAES International Journal of Artificial Intelligence (IJ-AI) 4, no. 3 (2015): 105. http://dx.doi.org/10.11591/ijai.v4.i3.pp105-112.

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This paper proposes fuzzy logic controller based seven-level hybrid inverter for photovoltaic systems with sinusoidal pulse width-modulation (SPWM) techniques. Multi-Level Inverter technology have been developed in the area of high-power medium-voltage energy scheme, because of their advantages such as devices of high dv/dt rating, higher switching frequency, unlimited power processing, shape of output waveform and desired level of output voltage, current and frequency adjustment.This topology can be used there by enabling the scheme to reduce the Total Harmonic Distortion (THD) for high voltage applications. The Maximum Power Point Tracking algorithm is also used for extracting maximum power from the PV array connected to each DC link voltage level. The Maximum Power Point Tracking algorithm is solved by Perturb and Observer method.It has high performance with low Total Harmonic Distortion and reduced by this control strategy. The proposed system has verified and THD is obtained by using MATLAB/simulink.The result is compared with the hardware prototype working model.

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Narmitha, D., Dr K. Karthikumar, and Dr P. ChandraSekar. "Analysis of Cascaded H Bridge Multilevel Inverter for Three-Phase Induction Motor Drive." International Journal of Electrical and Electronics Research 12, ETEVS (2024): 01–06. http://dx.doi.org/10.37391/ijeer.12et-evs01.

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The last ten years have seen a rise in the usage of multilayer inverters. Because they can produce waveforms with a greater harmonic spectrum and reliable output. Several high voltages and high-power applications are suitable for these new inverters. A multilayer converter not only produce high power ratings, but it also saves time and money and enhances the system performance in terms of harmonics, dv/dt strains, and pressures on the motor bearings. Owing to its flexibility and modularity, the possible topology for a power application is the cascaded H-bridge multilevel inverter (CMI) with separated DC sources. This study investigates a cascade H bridge multilevel inverter, such as a Three, Five, Seven, Nine and Eleven level inverter in order to drive a three phase AC induction motor. A Level shifted Pulse Width Modulation (LSPWM) technique was applied for the CHBMLI. Specific emphasis is given to aspects like modulation and total harmonic distortion that are preferable or necessary for multi-level converters. For both intellectual and scientific considerations, investigating sine triangle carrier pulse width modulation is deemed to be the most auspicious approach. Analysis of the many performance parameters, including load torque, motor speed, and efficiency, an extensive survey is conducted. MATLAB / Simulink is built into the entire system, and simulation results are developed. The purpose of this research is to demonstrate the performance of 9-level and 11-level fed induction motor driving results for Electric Vehicle applications. CHBMLI fed motor drive is better suitable for Induction Motor Drives.

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47

Ali, Adnan Hussein, Hassan Salman Hamad, and Ali Abdulwahhab Abdulrazzaq. "An adaptable different-levels cascaded h-bridge inverter analysis for PV grid-connected systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (2019): 831. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp831-841.

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Multi-level inverters (MLIs), have gained popularity in the last few years as a result of their low total harmonic distortions (THD) as well as their output waveform which is of high quality. The converter which considers more appropriate for applications of photovoltaic (PV)beyond the varying MLIs arrangementsis the Cascaded H-Bridge-(CHB) (MLI), meanwhile each PV panel may be served as an independent DC supply for any CHB unit. Through the use of MATLAB/Simulink, the efficiency of symmetrical single phase MLI in terms of the number of switches, harmonic content in addition to the stresses of voltage through theswitches that exist at photovoltaic cell by means of input source is enhanced; varying parameters like output current, voltage and power, and THD at 5-level 7-level and 9-level Cascaded MLI are observed. In this paper, attention is paid to a multi-level topologies which is flexible and based on cascaded MLI intended for PV grids connected system. An observation of the output voltage becomes closer to the sine wave as the levels increase, while the increase in the levels of Cascaded Multilevel Inverter causes the total harmonic distortion to decrease.

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48

Muthukaruppasamy, S., K. Sarada, Priya R. Patil, and R. Dharmaprakash. "A Symmetric Multi-Level Cascaded H-Bridge Inverter for Renewable Energy Integration." International Journal of Electrical and Electronics Research 11, no. 4 (2023): 939–43. http://dx.doi.org/10.37391/ijeer.110409.

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The advanced multi-level cascaded H-Bridge inverter system described in this paper is novel and intended for effective integration of renewable energy sources. Phase-displacement pulse width modulation (PD-PWM) control has been employed in the proposed five-level topology to produce output voltage with better quality. The system incorporates proficient filtering methods with a low total harmonic distortion (THD) desired outcome. With a stable output of 230 V at 50 Hz and a 2.3 kW capacity, the inverter system has been satisfied the exacting IEEE 519 standards for power quality. The MATLAB/Simulink is implemented to simulate and model the entire system, exhibiting its superior performance in terms of harmonic reduction and grid compliance. The innovative design offers a dependable respond to for integrating renewable energy, ensuring smooth and high-quality power injection into the grid.

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Zhang, Jinke, Xiaojie Wu, Lvshuai Xing, Chao Zhang, Herbert Iu, and Tyrone Fernando. "Bifurcation Analysis of Five-Level Cascaded H-Bridge Inverter Using Proportional-Resonant Plus Time-Delayed Feedback." International Journal of Bifurcation and Chaos 26, no. 11 (2016): 1630031. http://dx.doi.org/10.1142/s0218127416300317.

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In this paper, a traditional five-level cascaded H-bridge inverter is studied and regulated by a proportional-resonant (PR) controller. In order to extend the range of the gain of PR controller, for the purpose of achieving a fast response, a time-delayed feedback controller (TDFC) is used. Similar to the pulse width modulation (PWM) current-mode single phase H-bridge inverter that exhibits bifurcation and chaos when parameters vary, we demonstrate for the first time that the cascaded H-bridge inverter also shows similar features. From the perspective of a discontinuous map, the cascaded H-bridge inverter generally displays extraordinary complexity. Moreover, a new virtual ergodic method (VEM) is proposed to establish the mathematical model of the whole system, which helps to understand the observed bifurcation phenomena. Simulation results are given to verify the analysis.

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Renukadevi, S. "Switching Sequence Control 31-Level Asymmetric Cascaded of Reduced Switch Count Multilevel Inverter with Multi Carrier Pulse Width Modulation." Journal of Energy Engineering and Thermodynamics, no. 22 (March 31, 2022): 9–18. http://dx.doi.org/10.55529/jeet.22.9.18.

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Various pulse width modulation techniques, including as cascaded multilevel inverters (MLI), diode clamped multilevel inverters, and flying capacitor multilevel inverters, can be used to simply operate common inverters. Due to increased switching losses, current MLIs cannot reach high efficiency. Due to lower losses and THD than standard MLI topologies, the asymmetric cascaded multi-level H-bridge inverter architecture examined in this white paper employs fewer switches and more output voltage levels (Total Harmonic Distortion). The THD is less than the IEEE standard because of the suggested architecture. In this instance, phase difference (PD) multi-carrier PWM techniques are used to control the gate pulses using sinusoidal reference. Each switch receives a different pulse pattern thanks to a method of decimal-to-binary conversion. It is possible to utilise the suggested circuit for applications requiring moderate to high power, and it is quite simple to evaluate. Utilize the MATLAB/SIMULINK environment to simulate time-domain behaviour for the 31-level and 33-level multilevel inverter topologies.

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Journal articles on the topic 'Cascaded H-bridge Multi-Level Inverter'

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