Relevant bibliographies by topics / Impedance source type inverter

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  1. Journal articles
  2. Dissertations / Theses
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  4. Conference papers

Academic literature on the topic 'Impedance source type inverter'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Impedance source type inverter"

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Chinmay V., Deshpande, Deshpande Chaitanya V., and Deokar Sanjay A. "Performance Evaluation of Dynamic Voltage Restorer Based on Transformer-based Z Source Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 3 (2017): 1101. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1101-1108.

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In this paper, latest technology is introduced in substitution to conventional voltage and current type inverter with Transformer based impedance (Z) source inverter in voltage sag assessment and mitigation and compared with voltage source inverter based dynamic voltage restorer. Transformer based impedance source inverters (Trans-Z source inverters) are newly proposed inverters that can be used to overcome downside of voltage source inverter, current source inverter and impedance source (Z-source) inverter. T-Z source inverter consists of transformer with high frequency and low leakage inductance along with low reactive component compared with conventional Z source inverter. In case of T-Z source inverter, voltage stress throughout Z-source capacitor is reduced along with inrush current limitation at startup. This paper presents modeling of T-Z source inverter based dynamic voltage restorer using MATLAB/SIMULINK software along with its THD analysis which is compared with VSI based dynamic voltage restorer. Here abc to dq0 control algorithm is employed. The control technique which is employed for simulation shows excellent results for voltage sag and swell compensation.
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Periyanayagam, Madasamy, Suresh Kumar V, Bharatiraja Chokkalingam, Sanjeevikumar Padmanaban, Lucian Mihet-Popa, and Yusuff Adedayo. "A Modified High Voltage Gain Quasi-Impedance Source Coupled Inductor Multilevel Inverter for Photovoltaic Application." Energies 13, no. 4 (2020): 874. http://dx.doi.org/10.3390/en13040874.

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The quasi-impedance source inverters/quasi-Z source inverters (Q-ZSIs) have shown improvement to overwhelmed shortcomings of regular voltage-source inverters (VSIs) and current-source inverters (CSIs) in terms of efficiency and buck-boost type operations. The Q-ZSIs encapsulated several significant merits against conventional ZSIs, i.e., realized buck/boost, inversion and power conditioning in a single power stage with improved reliability. The conventional inverters have two major problems; voltage harmonics and boosting capability, which make it impossible to prefer for renewable generation and general-purpose applications such as drive acceleration. This work has proposed a Q-ZSI with five-level six switches coupled inverter. The proposed Q-ZSI has the merits of operation, reduced passive components, higher voltage boosting capability and high efficiency. The modified space vector pulse width modulation (PWM) developed to achieve the desired control on the impedance network and inverter switching states. The proposed PWM integrates the boosting and regular inverter switching state within one sampling period. The PWM has merits such as reduction of coupled inductor size, total harmonic reduction with enhancing of the fundamental voltage profile. In comparison with other multilevel inverters (MLI), it utilizes only half of the power switch and a lower modulation index to attain higher voltage gain. The proposed inverter dealt with photovoltaic (PV) system for the stand-alone load. The proposed boost inverter topology, operating performance and control algorithm is theoretically investigated and validated through MATLAB/Simulink software and experimental upshots. The proposed topology is an attractive solution for the stand-alone and grid-connected system.
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Sellakumar, S., and M. Vijayakumar. "T Source Inverter Based Shunt Active Filter with LCL Passive Filter for the 415V 50 Hz Distribution systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 2 (2015): 268. http://dx.doi.org/10.11591/ijpeds.v6.i2.pp268-273.

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The inverter topology is being used as an active filter to reduce the harmonics in the power system. The traditional voltage source or current source inverters are having the disadvantages of limited output voltage range hence it may not be able to supply enough compensating currents during heavy switching surges, Vulnerable to EMI noise and the devices gets damaged in either open or short circuit conditions and the main switching device of VSI and CSI are not interchangeable. The active filters are the type of DC-AC system with wide range of voltage regulation and integration of energy storages is often required. This cannot be achieved with conventional inverters and hence the impedance source inverters have been suggested. The T source inverters are basically impedance source inverters which can be used as an active filter in the power system. The MATLAB simulation is done and the results are discussed in this paper for both the types. The proposed dampening system is fully characterized by LCL based passive filters and T source inverter based shunt active filter. The disturbances in the supply voltage and load current due to the non linear loads are observed in the simulation. The same is studied after connecting the designed hybrid shunt active filter in the distribution system. The simulation results obtained from the proposed method proves that it gives comparatively better THD value.
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Balamurugan, Chinnapettai Ramalingam, P. Vijayakumar, and T. Sengolrajan. "A novel impedance source fed H-type flying capacitor multilevel inverter." International Journal of Advances in Applied Sciences 8, no. 3 (2019): 225. http://dx.doi.org/10.11591/ijaas.v8.i3.pp225-231.

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<p>In this paper, simulation using MATLAB/SIMULINK is performed with<br />bipolar triangular fixed amplitude multi-carrier Phase Disposition (PD)<br />PWM strategy with sine wave, Third Harmonic Injection, 60 degree Pulse Width Modulation and stepped wave reference for the chosen impedance Source based H-Type flying capacitor Multilevel Inverter (ISBH-Type FCMLI). The root means square value of the fundamental component and Total Harmonic Distortion of the output voltage which are the most important performance indices for the chosen inverter topologies are evaluated presented and compared for various references through duty ratios. From the simulation results it is observed that for various references the THD is almost similar but the root mean square value in terms of voltage is more for THI, 60 degree PWM and stepped wave reference with phase disposition strategy. The results are obtained for ma (amplitude modulation index) < 1 (under amplitude modulation index), ma=1 (normal amplitude modulation index) and ma > 1 (over amplitude modulation index).</p>
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Cao, Wu, Kangli Liu, Shunyu Wang, Haotian Kang, Dongchen Fan, and Jianfeng Zhao. "Harmonic Stability Analysis for Multi-Parallel Inverter-Based Grid-Connected Renewable Power System Using Global Admittance." Energies 12, no. 14 (2019): 2687. http://dx.doi.org/10.3390/en12142687.

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Multi-parallel grid-connected voltage source inverters (VSIs) are widely applied in the fields of renewable energy, energy storage, harmonic suppression, etc. However, these inverters may cause harmonic stability problems due to the interactions among the grid-connected inverters through the grid impedance, which can seriously threaten system stability. The impedance-based stability criterion provides an effective tool for analyzing harmonic instability issues and can be divided into two types, namely, a ratio type and a sum type. Based on the existing studies of the sum-type criterion, this paper further proposes a new sum-type form based on the global admittance from the PCC to assess system stability through frequency-domain analysis. This global admittance-based stability criterion can be used not only to analyze system stability, but also to reveal the influence of each VSI unit on system stability with a lower computational burden and provide guidance for resonance suppression, especially in the case of a large number of grid-connected inverters and asymmetric inverter parameters. Finally, a MATLAB/Simulink model and 400 kVA/400 V experimental platform consisting of six grid-connected VSIs were established, and the corresponding results are presented to verify the effectiveness of the proposed method.
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Nguyen, Minh-Khai, Tan-Tai Tran, and Firuz Zare. "An Active Impedance-Source Three-Level T-Type Inverter With Reduced Device Count." IEEE Journal of Emerging and Selected Topics in Power Electronics 8, no. 3 (2020): 2966–76. http://dx.doi.org/10.1109/jestpe.2019.2927727.

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Barrero-González, Fermín, Carlos Roncero-Clemente, María Isabel Milanés-Montero, et al. "Improvements on the Carrier-Based Control Method for a Three-Level T-Type, Quasi-Impedance-Source Inverter." Electronics 8, no. 6 (2019): 677. http://dx.doi.org/10.3390/electronics8060677.

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The boost feature that characterizes Z-source and quasi-Z-source converters is usually achieved by means of a proper insertion of short-circuit states in the full DC-link. In this work, a novel pulse width modulation carrier-based strategy for a three-phase, three-level T-type, quasi-Z-source inverter is introduced, based on the addition of alternate short-circuits in the two halves of the DC-link bus. This technique achieves better performance, less electromagnetic interference, and lower harmonic distortion of the output line-to-line voltage compared to the traditional methods based on the full DC-link shoot-through. At the same time, generating the switching states is to easy implement. The proposed strategy permits the use of electronic devices with lower blocking voltage capability, thus improving converter reliability, size, and cost. The new method may be implemented in another multilevel inverter with an impedance-source network as well. A comprehensive simulation study is performed in order to validate the adopted method, with different inverter input voltages, which is taken as representative of a photovoltaic array. Comparisons are conducted with conventional strategy insertions using the same topology in order to show the improvements achieved.
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Jammy, Ramesh Rahul, Kirubakaran Annamalai, and Chinmay Kumar Das. "Operation, Control and Verification of Seven-Level Quasi-Z-Source-Based T-Type Inverter." Journal of Circuits, Systems and Computers 29, no. 02 (2019): 2050023. http://dx.doi.org/10.1142/s0218126620500231.

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In this paper, a novel seven-level Quasi-Z-Source-based [Formula: see text]-type inverter (7L[Formula: see text]qZST[Formula: see text]) is proposed. The proposed inverter is an upgrade of Quasi-Z-source (qZs) network and seven-level [Formula: see text]-type inverter. The 7L qZST[Formula: see text] comprises of three qZs-based impedance networks, two bidirectional switches and an [Formula: see text]-bridge inverter. It owns the advantages of reduced switch count, improved output voltage gain, enhanced reliability and better quality of output voltage and current. The performance of the proposed topology is tested for two different pulse width modulation techniques based on shoot-through control. The first technique offers simple control and operated at a fixed shoot-through duty cycle for realizing output voltage level. The second technique facilitates independent control of each qZs network dc-link voltage and they can be operated at different shoot through duty cycle which overcomes the limitation of first technique with better quality in output voltage. The detailed operation of the proposed topology and control schemes have been elaborated for different switching states for each output voltage level generation. Extensive simulation and experimentation are performed for both the switching schemes to verify their performance under steady state and dynamic conditions. Furthermore, a brief comparison is constructed to highlight the merits of the proposed inverter with conventional topologies.
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Liu, Hongchen, Xi Su, and Junxiong Wang. "High Step-up Coupled Inductor Inverters Based on qSBIs." Energies 12, no. 15 (2019): 3032. http://dx.doi.org/10.3390/en12153032.

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In this paper, two types of high step-up coupled inductor inverters based on qSBIs (quasi- switched boost inverters) are proposed. By applying the coupled inductor to the qSBIs, the voltage gain of the proposed inverter is regulated by turn ratio and duty ratio. Thus, a high voltage gain can be achieved without the circuits operating at the extreme duty cycle by choosing a suitable turn ratio of the coupled inductor. In addition, the proposed circuits have the characteristics of continuous input current and low voltage stress across the passive components. A boost unit can be added to the proposed inverters for further improvement of the voltage gain. In this paper, the working principle, steady state analysis, and the comparisons of the proposed inverter with other impedance-source inverters are described. A 200 W prototype was created and the experimental results confirm the correctness of the analysis in this paper.
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Saleem, Muhammad, Muhammad Hanif Ahmed Khan Khushik, Hira Tahir, and Rae-Young Kim. "Robust L Approximation of an LCL Filter Type Grid-Connected Inverter Using Active Disturbance Rejection Control under Grid Impedance Uncertainty." Energies 14, no. 17 (2021): 5276. http://dx.doi.org/10.3390/en14175276.

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High-order filters, such as LCL, are more commonly employed in grid-connected inverters (GcIs) as an interference element for the better attenuation of switching harmonics. However, LCL filters may have resonance poles and antiresonance zeros in the frequency response with inverter side current. This may affect the stability of the system and limit the control bandwidth with the simple single-loop PI control. This becomes severe with the introduction of grid impedance due to the large distance between renewable energy sources and the power grid. To mitigate this effect, active damping and sensorless damping is preferred with pre-information about grid impedance. In this paper, linear active disturbance rejection control (ADRC) is introduced, first to L filter type GcI and later extended to LCL filter type GcIs with minimum modification. From the frequency analysis, it is shown that the characteristics of the proposed control scheme remain the same even with a change in filter order and grid impedance. The resonance poles and antiresonance zeros in the LCL filter are compensated via the pole–zero cancelation technique. In addition to this, the preserve bandwidth, simple control design, and decoupled current control are also achieved with the proposed method. The robustness of the proposed method is compared with the single-loop PI control under different filter types and grid impedance uncertainty through MATLAB simulation and experimental outcomes.
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Dissertations / Theses on the topic "Impedance source type inverter"

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Quinalia, Mateus Siqueira. "Modelagem, análise de estabilidade e controle da tensão da malha Z em inversores fonte de impedância." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-04022019-091341/.

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O uso crescente de fontes alternativas de energia exige conversores de energia capazes de aumentar sua tensão nos terminais e conectá-los ao sistema de distribuição. Neste contexto, o conversor step-up clássico (conversor de potência CC/CC) e o inversor de fonte de tensão (VSI) são as soluções mais aplicadas para processar o fluxo de energia da fonte para a rede. No entanto, apresentam um baixo rendimento devido ao duplo estágio de conversão, isto é, a energia flui também através dos conversores de energia CC/CC e CC/CA. Para evitar esse tipo de desvantagem, no início da última década, o Z-Source-Inverter (ZSI) foi introduzido. Nesta nova solução, o conversor de energia CC/CC responsável por elevar a tensão nos terminais do conversor foi removido e uma rede de impedância LCLC foi adicionada com duas tarefas, ou seja, aumentar a tensão do terminal e melhorar a eficiência do ZSI. Infelizmente, os trabalhos da literatura não apresentaram um modelo matemático generalizado para apoiar os projetistas de conversores de potência na análise de estabilidade, projeto de controladores ou avaliar o ganho de tensão do conversor. Neste sentido, esta dissertação propõe o desenvolvimento de um modelo matemático completo e a análise de estabilidade da planta. Para suportar todo o desenvolvimento teórico, foi realizado um conjunto de análises no domínio do tempo e da frequência. Por fim, verificou-se o controle da tensão do elo CC para suportar todas as afirmações apresentadas neste trabalho (controle da tensão no capacitor da rede Z).<br>The growing use of alternative energy sources require power converters able to boost their terminal voltage and connect them to the distribution system. In this context, the classical step-up converter (DC/DC power converter) and the voltage source inverter (VSI) are the most applied solutions to process the power flow from the source to the grid. However, they present a low efficient because of the double stage of conversion, i.e. the power flows through the DC/DC and DC/AC power converters as well. To avoid this type of drawback, in the beginning of the last decade the impedance source inverter (ZSI) was introduce. In this new solution, the DC/DC power converter responsible for boosting the voltage at the DC-source terminals was removed and a Z (LCLC-network) was added with two tasks, i.e. boost the DC-source terminal voltage and improve the ZSI efficiency. Unfortunately, the papers in the literature did not present a generalized mathematical model to support designers of power converters in the analysis of stability, design of controllers or evaluate the voltage gain of the converter. In this sense, this thesis proposes the development of a complete mathematical model and the stability analysis of the plant. To support all the theoretical development a set of analysis in the time and frequency-domain was performed. Finally, the control of DC-link voltage was verified to support all the statements presented in this thesis (control on the Z-network voltage capacitance).
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Battiston, Alexandre. "Modélisation, commande, stabilité et mise en oeuvre des onduleurs à source impédante : application aux systèmes embarqués." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0357/document.

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Depuis les dix dernières années, dans les domaines liés aux transports (automobile, avionique, ferroviaire, naval), les technologies thermiques et hydrauliques tendent à laisser de plus en plus de place aux systèmes électriques. L’intérêt et le dynamisme de la Recherche en électronique de puissance se justifient par le rôle déterminant que la discipline joue au sein du développement des systèmes embarqués "plus électriques". Ce mémoire de thèse s’intéresse à l’étude de convertisseurs d’électronique de puissance, les onduleurs à source impédante, en tant que topologies alternatives aux architectures existantes au sein des systèmes de traction électrique. Plusieurs études sont établies suivant différents critères, qui, au delà d’une simple comparaison avec les architectures conventionnelles, proposent des solutions et des améliorations intervenant aussi bien dans le contrôle du système que dans sa topologie initiale. Ces études sont toutes appliquées à un système de traction électrique muni d’une machine synchrone à aimants et d’un onduleur à source impédante alimentée par une source de tension continue. Les résultats qui en découlent ont montré de larges intérêts de ces topologies concernant la maîtrise de la qualité du courant de batterie (annulation de ses ondulations hautes fréquences) mais aussi la maîtrise de certaines contraintes liées aux vieillissement des machines (possibilité de maîtriser les dv/dt). Certains inconvénients sont néanmoins établis comme le fait que la topologie n’offre guère d’amélioration du rendement (en comparaison avec les structures classiques) ou comme le fait que l’architecture rende dépendantes les commandes de l’onduleur à source impédante (côté DC) et de la machine (côté AC)<br>Over the past ten years, hydraulic and thermal technologies tend to make room for electrical system. Fields related to transportation (automotive, avionics, railway or naval) are directly impacted. The interest and dynamism in power electronics Research are justified by the impact of such a field in the development of embedded systems. This thesis focuses on the study of impedance-source inverters as possible topologies to replace conventional ones. Several studies are conducted according to different criteria and do not aim at only comparing the topologies. It proposes solutions and improvements in the control system as well as in its basis architecture. These studies are all applied to an electric traction system composed of an synchronous machine fed by an impedance-source inverter. It is showed that large interests come out of the obtained results. For instance, the cancellation of the high-frequency current ripples allows mastering the quality of the battery current. Moreover, some constraints as regards machine ageing can be reduced by mastering the slew rates dv/dt. Some drawbacks are nevertheless pointed out. There is no need in using such a topology to improve efficiency that is above the same as conventional structures. Moreover, controls of DC-side AC-side of the system are dependent due to the fact that inverter’s control is used to step up the DC-bus voltage
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Fröhlich, Lubomír. "Aktivní kmitočtové filtry pro vyšší frekvence." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233616.

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This thesis deals with the synthesis and optimization of frequency analogue filters with modern active elements usable for higher frequencies. The thesis is divided into three parts, the first part deals with the problematic concerning Leap-Frog combined ARC structure. Due to a difficult design, this method is not described in a detail and used in practice, although it shows e.g. low sensitivity. Firstly, a complete analysis of individual filters was made (for and T endings) and consequently these findings were used during implementation of this method to NAF program. Finally, samples of real filters were realized (for verification of functioning and correct design). Another very interesting topic concerning filters is usage of coupled band-pass for small bandwidth, where it is necessary to solve the problems concerning ratio of building elements values, but also price, quality, size of coils, sensitivity, Q factors, coefficients etc. That is why in practice a coil is very often substituted with other equivalent lossy and lossless blocks which create ARC filters structure. The design and the possibility of usage of lossy grounded elements were described here (such as synthetic inductors, frequency dependent negative resistor). Some parts of the design are individual computer sensitivity analysis, setting of usage and quality comparison of individual lossy grounded blocks. Besides, a program for these elements was created, it is useful for a quick design and depiction of transfer characteristics. The third part deals with the usage of tuning universal filters consisting three or more operational amplifiers, which secures its universality and possibility to create different kinds of transfer characteristic. In practice, Akerberg - Mossberg and Kerwin - Huelsman - Newcomb are the most used types of filters. These were also compared with less common universal filters. In the end, the possibility of digital tuning of universal filter with the help of digital potentiometers for filters of 10th order and frequency around 1 MHz was shown.
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Wu, She-Zhen, and 吳攝展. "Study and Implementation of a High Step-up Multilevel Inverter with Z-source Impedance." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fafv6q.

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碩士<br>國立臺北科技大學<br>車輛工程系<br>106<br>The main objective of this study is to develop a novel modified Z-source multilevel inverter system with high step-up. The power converter includes two-stage conversion circuits. The pre-stage is a modified Z-source converter with the coupled-inductor and charge-pump techniques, and the second-stage is a hybrid cascaded H-bridge multilevel inverter. The features of the proposed system: (1) The pre-stage topology uses only a single DC-source input and one MOSFET switch, to deliver the energy to two isolated voltage outputs, making the simple circuit and low cost can be achieved. (2) The second-stage topology is constructed by two H-bridge modules, and the low harmonic voltages are obtained by using a particular pulse width modulation (PWM) method. (3) This topology can be extended to the higher number of voltage levels by adding multiple secondary windings along with the corresponding coupled-inductor and charge-pump circuits. The operating principle, component voltage stresses, modeling and the closed-loop control design are derived in detail in this study. Finally, an inverter system was implemented to verify the feasibility.
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CHEN, JUN-YAN, and 陳俊諺. "Study and Implementation of a Fifteen Level Inverter with Coupled-Inductor and Single Input Z-Source Impedance." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/23ea7u.

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碩士<br>國立臺北科技大學<br>車輛工程系<br>107<br>This paper proposes a newly multilevel inverter for converting the DC distributed energies (such as batteries, solar cells, fuel cells, etc.) to AC load power supply. In this thesis, the key technologies are to integrate the coupled-inductor, charge pump, and Z-source impedance into the pre-stage, the DC/DC step-up converter. Besides, we use the hybrid pulse width modulation method for the post-stage, the cascaded full-bridge 15-level inverter. In spite of the traditional multilevel inverter need the separate multi-input sources as the input voltage source, the proposed multilevel inverter with only one single input power source to achieve the advantages of low cost, high power density, and low harmonic AC voltage output. Finally, to verify the feasibility of the proposed concept, we built a 500W inverter prototype to check the simulation and experiment results. The input and output voltages of the proposed multilevel 500W inverter are 48V and 110Vrms, respectively. The maximum efficiency of 91% for the pre-stage converter under 300W condition, and the maximum efficiency of 93%, the THD of 2.1% for the 15-level inverter under 100W output condition, can be achieved.
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Wang, Chun-Chieh, and 王俊傑. "Design of a Series-type Dynamic Voltage Regulator With 12-pulse Voltage Source Inverter." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/83113260701615990301.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>94<br>With the development of high technology industries, the proliferation of voltage-sensitive load equipment has made industrial processes much more vulnerable to degradation in the quality of power supply. Among the several novel custom power devices, the dynamic voltage restorer (DVR) for application in distribution systems is a recent invention. The purpose of this thesis is to design a 12-pulse series-type Dynamic Voltage Regulator . A direct current capacitor is employed as the storage device for the DVR and the 12 - pulse control technique is used to adjust the output voltage of the three-phase voltage-source inverter (VSI). The 12-pulse VSI is compared with the Pulse Wide Modulated (PWM) VSI. Both steady-state performance and transient characteristic of the DVR are investigated in the thesis. To show the advantage of the proposed 12-pulse VSI, compensation capability and power loss are investignted. The purpose is use a lower direct current capacitor voltage than the PWM VSI to achieve voltage compensation. The effectiveness of the designed DVR is first investigated by digital simulations using the MATLAB software. Then, in the experiment, the control kernel of the digital system for the DVR is based on a personal computer with data acquisition cards. Voltage compensation is achieved through the computer coder written in C language. Finally, it is concluded from results of simulations and experiments that load bus voltage can be effectively and superiorly regulated by the designed 12-pulse VSI DVR.
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Huang, Bo Xiang, and 黃柏翔. "Automatic Self-Matching Controller Design for Grid-Tied PV Inverter to Adapt the Change of Source Impedance and Solar Irradiation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/90651434451583088036.

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碩士<br>長庚大學<br>電機工程學系<br>100<br>The effect of variation in source impedance and solar irradiation on control performance of PV systems is investigated. A proportional-resonant (PR) controller in the stationary frame in place of a proportional-integral (PI) controller in the synchronous frame was adopted to modulate a single-phase grid-tied inverter for the PV systems. Although the PR controllers have gained some momentum lately due to the advantages such as instantaneous tracking capability as well as low-cost computational resources, the tracking performance may decline in case of the change in source impedance and solar irradiation where conventional PR design rule is void. To adapt the PR controllers over diverse operating conditions without incurring excessive tracking error, an adaptive algorithm, which dictates the quality of the tracking performance, is proposed to search appropriate damping ratio for the PV systems. The control gains of the PR-controller can then be altered in light of the optimal damping ratio through a simple algebraic conversion. The proposed strategy was realized by a fully digital-controlled laboratory prototype which consists of a 1.5kW PV array and a grid-tied single-phase inverter. The experimental results confirm the performance of the proposed strategy.
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Wu, Xuan-Ru, and 吳宣儒. "Application of abc Reference Frame SVPWM Algorithm to Three-Phase Three-Level T-Type Voltage Source Inverter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/46n79e.

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碩士<br>國立交通大學<br>電控工程研究所<br>107<br>In this thesis the abc reference frame continuous SVPWM algorithm is adapted for a three-phase three-level T-Type voltage source inverter. The proposed algorithm has low computational complexity, hence no memory is required for recording the multilevel switching states and their corresponding duty ratios, making it of facile implementation in microcontrollers. The proposed algorithm consider both algorithm verification and closed-loop operation. The algorithm verification, uses one reference voltage vector in the alpha-beta plane to compute four multilevel switching vectors and their corresponding duty ratios. Then the multilevel switching vectors are mapped onto the three-phase three-level T-Type voltage source inverter to get twelve switch gate driver signals. In closed–loop operation, the output phase currents follow the current commands when the inverter operates in the linear region. The capacitor balance control is also added to balance both DC-link capacitors average voltage. The proposed algorithm will be verified through the simulation software PSIM and implemented using a FPGA to prove the feasibility of the proposed algorithm.
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Zander, Anthony Charles. "Influence of error sensor and control source configuration and type upon the performance of active noise control systems / Anthony C. Zander." 1994. http://hdl.handle.net/2440/21488.

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Bibliography : leaves 237-251.<br>x, 251 leaves : ill. ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Mechanical Engineering, 1994
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Pina, Manuel António de. "Sistema Fotovoltaico Ligado à Rede Usando um Conversor Multinível Quasi-Z do Tipo T." Master's thesis, 2021. http://hdl.handle.net/10400.26/35682.

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Os inversores quasi-Z de três níveis (qZS) baseados na topologia tipo T são especialmente indicados para uso em sistemas fotovoltaicos conectados à rede. Na verdade, apresentam uma característica importante para este tipo de aplicação, pois apresentam a característica redutor/elevador. Além disso, também é caracterizado por alta confiabilidade e operação multinível. Porém, associados a este conversor, devem ser utilizados controladores que garantam seu melhor desempenho. Neste contexto, esta dissertação irá propor um sistema de controlo global para o inversor trifásico tipo T qZS em um sistema fotovoltaico conectado à rede. Assim, será considerado um algoritmo rastreador de máximo ponto de potência (MPPT) baseado em uma abordagem derivada de tempo integral robusta. Para as correntes de saída será utilizado um controlador de corrente desacoplado no qual será associado um modulador por largura de pulso sinusoidal (SPWM). O desempenho do sistema será verificado e testado por estudos de simulação. Os resultados mostrarão que este sistema fornecerá resultados bem-adaptados para esta aplicação.<br>Three-level quasi-Z-Source (qZS) inverters based on the T-Type topology are especially indicated to be used in grid-connected PV systems. In fact, they present an important feature for this type of application since presents Buck-Boost characteristic. Besides that, is also characterized by high reliability and multilevel operation. However, associated to this converter, it must be used controllers that will ensure their best performance. In this context, this thesis will propose a global control system for the three phase T-Type qZS inverter in a grid-connected PV System. So, it will be considered a MPPT algorithm based on a robust integral time derivative approach. For the output currents will be used a decoupled current controller in which will be associated to a SPWM modulator. The performance of the system will be verified and tested by simulation studies. The results will show that this system will provide results well adapted for this application.
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Book chapters on the topic "Impedance source type inverter"

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Liu, Hongpeng, Zichao Zhou, Yuhao Li, Wentao Wu, Jiabao Jiang, and Enda Shi. "Z-Source Inverter and Control." In Impedance Source Inverters. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2763-0_2.

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Liu, Hongpeng, Zichao Zhou, Yuhao Li, Wentao Wu, Jiabao Jiang, and Enda Shi. "Three-Winding Impedance Source Inverter." In Impedance Source Inverters. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2763-0_5.

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Bayhan, Sertac, Mostafa Mosa, and Haitham Abu-Rub. "Model Predictive Control of Impedance Source Inverter." In Impedance Source Power Electronic Converters. John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781119037088.ch18.

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Trabelsi, Mohamed, and Haitham Abu-Rub. "Grid Integration of Quasi-Z Source Based PV Multilevel Inverter." In Impedance Source Power Electronic Converters. John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781119037088.ch19.

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Mounika Sharon, G., T. KrantiKiran, and Ravilla Madhusudan. "Distribution Power Quality Improvement Using Impedance Source Inverter (ZSI)." In Lecture Notes in Electrical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8942-9_13.

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Ranjit, M., R. Giridhar Balakrishna, V. Ramesh Babu, and Jalluri Srinivasa Rao. "Impedance Source Inverter Based Asynchronous Motor Drive Using Different Modulating Signals." In Algorithms for Intelligent Systems. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2109-3_16.

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Ruan, Xinbo, Xuehua Wang, Donghua Pan, Dongsheng Yang, Weiwei Li, and Chenlei Bao. "Impedance Shaping of LCL-Type Grid-Connected Inverter to Improve Its Adaptability to Weak Grid." In CPSS Power Electronics Series. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4277-5_10.

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Seyezhai, R., and D. Umarani. "Simulation and Realization of Rectified Inverted Sine Hybrid Pulse Width Modulation Strategy for Quasi-Impedance Source Cascaded Multilevel Inverter." In Advances in Automation, Signal Processing, Instrumentation, and Control. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_231.

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Prasad, Miska. "Comparison of 3-Leg, 4-Leg, and 6-Leg Topologies of Renewable Energy Fed Impedance Source Inverter-Based Dynamic Voltage Restorer." In Advances in Smart Grid Automation and Industry 4.0. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-7675-1_29.

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"Z-Source Inverter." In Impedance Source Power Electronic Converters. John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781119037088.ch6.

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Conference papers on the topic "Impedance source type inverter"

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Dos Santos, Rafael, and Flávio A. S. Gonçalves. "Sinusoidal PWM techniques comparison for the Quasi-Y-Source Inverter." In Simpósio Brasileiro de Sistemas Elétricos - SBSE2020. sbabra, 2020. http://dx.doi.org/10.48011/sbse.v1i1.2316.

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Impedance networks inverters (INI) have emerged as an alternative to improve traditional inverters, allowing their operation as a buck-boost type converter, through the utilization of the "shoot-through" conduction state, where switches of one or more inverter legs are gated on simultaneously. Recently introduced, the Quasi-Y-Source inverter (QYSI) is a magnetic coupled INI that has particular performance advantages, specially for renewable sources and distributed generation. To control the QYSI there is several techniques based on Sinusoidal Pulse Width Modulation (SPWM), that are modified to allow the shootthrough state. This work aims to present, through computational simulations, a comparative analysis of three SPWM techniques applied in three-phase QYSI, considering a fixed boost factor and a three-phase/three-wire RL load connected to the inverter output. The following modulation techniques were compared: Simple Boost Control (SBC), Maximum Boost Control with third harmonic injection (MBC3h) and Maximum Constant Boost Control with third harmonic injection (MCBC3h). Simulation results show operation characteristics of the QYSI for the different modulation techniques. A Fourier analysis was performed in order to evaluate harmonic distortion and harmonic spectrum for both inverter output voltage and current, and a comparative analysis was performed showing several relationships among voltage gain, switch voltage stress, shoot-through duty ratio and modulation index for the different SPWM techniques. Simulation results shows the advantages and disadvantages of each SPWM technique applied to QYSI and the impact of the coupled inductor on inverter performance, helping to establish proper criteria for choosing among SPWM techniques for different power systems applications.
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Mohammadi, Sina, Mansour Ojaghi, Abolfazl Jalilvand, and Qobad Shafiee. "Optimal Robust Control of LCL-type Grid-Connected Voltage Source Inverters against Grid Impedance Fluctuations." In 2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC). IEEE, 2019. http://dx.doi.org/10.1109/pedstc.2019.8697514.

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Maheskumar, V., Mohan Das, and N. Maheshkumar. "Developed impedance-type power inverter." In 2013 International Conference on Computer Communication and Informatics (ICCCI). IEEE, 2013. http://dx.doi.org/10.1109/iccci.2013.6466253.

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Strzelecki, Ryszard, Marek Adamowicz, Natalia Strzelecka, and Wieslaw Bury. "New type T-Source inverter." In 2009 Compatability and Power Electronics (CPE). IEEE, 2009. http://dx.doi.org/10.1109/cpe.2009.5156034.

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Ott, Silver, Indrek Roasto, and Dmitri Vinnikov. "Neutral point clamped quasi-impedance-source inverter." In 2011 7th International Conference-Workshop "Compatibility And Power Electronics" (CPE). IEEE, 2011. http://dx.doi.org/10.1109/cpe.2011.5942259.

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Jagan, Vadthya, and Sharmili Das. "Switched Impedance Enhanced-Boost Quasi-Z-Source Inverter." In 2017 14th IEEE India Council International Conference (INDICON). IEEE, 2017. http://dx.doi.org/10.1109/indicon.2017.8487596.

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Uthirasamy, R., V. Srimaheswaran, and C. Suganya. "Impedance source inverter based AC-AC converter system." In International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2011). IET, 2011. http://dx.doi.org/10.1049/cp.2011.0362.

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Selva santhose Kumar R and Priyaa Dharshini R S. "Modified solar power generation using impedance source inverter." In 2014 International Conference on Advanced Communication, Control and Computing Technologies (ICACCCT). IEEE, 2014. http://dx.doi.org/10.1109/icaccct.2014.7019426.

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Kumar, A. A., D. Singh, and A. Dhakar. "New control algorithm for impedance (Z-source) inverter." In 2013 International Multi-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s). IEEE, 2013. http://dx.doi.org/10.1109/imac4s.2013.6526491.

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Siriwattanasit, Chumpol, Anawach Sangswang, Sumate Naetiladdanon, and Ekkachai Mujjalinvimut. "Single-Phase Transformerless Grid-Connected Impedance Source Inverter." In 2018 International Electrical Engineering Congress (iEECON). IEEE, 2018. http://dx.doi.org/10.1109/ieecon.2018.8712223.

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