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Journal articles on the topic '-level z-source neutral point clamped (NPC) inverter'

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Published: 4 June 2025

Last updated: 1 August 2025

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1

Edwin Deepak, F. X., and V. Rajasekaran. "Three phase z-source neutral point clamped inverter with multicarrier PWM technique." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 35, no. 5 (2016): 1575–91. http://dx.doi.org/10.1108/compel-04-2016-0131.

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Purpose The purpose of this paper is to present the three phase seven-level Z-source neutral point clamped (NPC) inverter with multicarrier pulse-width modulation (PWM) technique. Despite numerous topologies and modulation methods, there is a dire need of developing PWM techniques that can be deployed in multilevel inverters. These inverters decrease the total harmonic distortion and it has a good performance for various electrical power system applications. The proposed inverter is investigated for its performance by executing it in shoot through and non-shoot through modes. Design/methodolog

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2

R., Palanisamy, Selvakumar K., Selvabharathi D., et al. "Simulation of Single Phase 3-level Z-source NPC Inverter with PV System." TELKOMNIKA Telecommunication, Computing, Electronics and Control 16, no. 5 (2018): 2293–301. https://doi.org/10.12928/TELKOMNIKA.v16i5.7098.

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This paper elucidates simulation of single phase 3-level z-source neutral point clamped (NPC) inverter with PV system. single phase NPC inverter employed due to its advantages like less voltage stress, reduced harmonic content, minimsed CMV and voltage stress is low. Z-source network is engaged to boost input voltage getting from the photovoltaic system, which is manoeuvre in shoot through and nonshoot through conditions. This proposed scheme utilized to enhance the output voltage, minimise THD and the leakage current can be avoided with help of split inductor connected with output of inverter

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3

R, Palanisamy, and Vijayakumar K. "Wind-PV Hybrid Energy Source Fed Three Level NPC with Quasi Z Source Network." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 3 (2017): 1285. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1285-1293.

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Multilevel inverters find use in industrial drive applications and grid based power generation. Owing to the increasing power demand and rising conventional generation costs a new alternative in renewable energy source is gaining popularity and acceptance. A Wind-PV hybrid renewable energy source is proposed which increases power reliability and improves standalone generation efficiency. A Quasi Z source network allows inverter shoot through possibility while boosting the dc voltage fed to the Neutral Point Clamped MLI. Simulation results were obtained for two levels VSI and further simulation

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4

Mohsin, Muhammad Yasin, Sohaib Tahir, Waqar Tahir, Ghulam Farid, Waqas Ahmad Watoo, and Muhammad Haris. "Fault Analysis and Reduction of Harmonics of Three-Level Three Wire and Four-Wire Neutral Point Clamped Inverter using PWM Switching Technique." Pakistan Journal of Engineering and Technology 3, no. 2 (2020): 88–94. http://dx.doi.org/10.51846/vol3iss2pp88-94.

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Energy generation through wind and solar is increasing with the rising interest in the renewable and clean form of energy. Due to energy crises, the world is shifting from nonrenewable energy resources to renewable energy resources. Renewable energy resources are the green and eco-friendly sources and do not affect the climate like the other fossil fuels. Renewable fuels gain popularity due to their sustainability and low carbon emission. To get energy from renewable energy sources, well-defined mechanisms and control devices must be needed. Therefore, the reliability and stability of the syst

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R, Palanisamy. "Hysteresis Control 3-Level SI-NPC Inverter with Wind Energy System." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 4 (2017): 1764. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1764-1770.

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The system is a 3-level Neutral point clamped hysteresis current controlled Inverter with Wind energy as power source. The input DC Power for the multi-level inverter is drawn from wind turbine generator connected through a rectifier circuit. An inductor has been introduced for smoothening the DC output from the rectifier. The inverter uses Neutral Point Clamped topology. The switching pulses for the inverter are achieved by hysteresis current control technique. This system is advantageous over the conventional SPWM based system as the hysteresis current control allows to reduce the low freque

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6

Beriber, D., A. Talha, and M. Boucherit. "Stabilization of multi DC bus link voltages of multilevel NPC VSI. Application to double stator induction motors." Archives of Control Sciences 22, no. 1 (2012): 107–20. http://dx.doi.org/10.2478/v10170-011-0015-1.

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Stabilization of multi DC bus link voltages of multilevel NPC VSI. Application to double stator induction motors Voltage source multilevel inverters have become very attractive for power industries in power electronics applications during last years. The main purposes of studying multilevel inverters are the generation of output voltage signals with low harmonic distortion and reduction of switching frequency. An important issue of the multilevel inverter is the capacitor voltage-balancing problem. The unbalance of different DC voltage sources of multilevel neutral point clamped (NPC) voltage

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Chau, Minh Thuyen, Hoai Thuong Nguyen, and Khac Tung Truong. "Integrated compensation model using a three-phase neutral point clamped inverter." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 5 (2020): 5074–82. https://doi.org/10.11591/ijece.v10i5.pp5074-5082.

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Normally, when research on active compensation models, previous studies only assumed that the source of harmonics is nonlinear load. The nonlinear load here is fixed and balanced, the supply voltage is considered ideal, i.e. the three-phase source is balanced and there is no distortion. However, in reality, the above assumption is difficult to achieve. Therefore, this paper aims to design an integrated compensation model for different types of harmonic sources. The types of harmonic sources considered here include: harmonic sources generated from nonlinear load and source. The requirement of t

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Roncero-Clemente, Carlos, Enrique Romero-Cadaval, Oleksandr Husev, Dmitri Vinnikov, and Serhii Stepenko. "Simulation of Grid Connected Three-Level Neutral-Point-Clamped qZS Inverter using PSCAD." Electrical, Control and Communication Engineering 2, no. 1 (2013): 14–19. http://dx.doi.org/10.2478/ecce-2013-0002.

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AbstractThis paper is focused on a single-phase three-level neutral-point-clamped quasi-z-source inverter when it is operating being connected to the electrical grid. A control strategy for injecting current synchronized in phase with the voltage at the point of common coupling has been proposed and studied. It is achieved by means of controlling the output voltage between branches adjusting the output current by using a d-q frame and the analysis of the output filter. The control strategy generates the reference to be used in the modulation technique and it has been validated with and without

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Amari, Abdelhay Sadki, Ayoub El Gadari, and Abdezzahid Arbaoui. "PV system applied on the new PUC-NPC inverter." Indonesian Journal of Electrical Engineering and Computer Science 35, no. 2 (2024): 720. http://dx.doi.org/10.11591/ijeecs.v35.i2.pp720-728.

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In this article, the authors present a new competitive Packed-U-cell and neutral point clamped (PUC-NPC) 9-level converter that utilizes a small number of power switches and passive components. Only seven switches are added to a single DC source. However, the proposed converter takes benefits of the neutral point clamped (NPC) converter’s capability to connect capacitors in series, all with a simple control that enables the algorithm associated to the proposed inverter operate correctly in an open loop operation. A technique of pulse width modulation (PWM) is employed to maintain capacitor vol

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Abdelhay, Sadki Amari Ayoub El Gadari Abdezzahid Arbaoui. "PV system applied on the new PUC-NPC inverter." Indonesian Journal of Electrical Engineering and Computer Science 35, no. 2 (2024): 720–28. https://doi.org/10.11591/ijeecs.v35.i2.pp720-728.

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In this article, the authors present a new competitive Packed-U-cell and neutral point clamped (PUC-NPC) 9-level converter that utilizes a small number of power switches and passive components. Only seven switches are added to a single DC source. However, the proposed converter takes benefits of the neutral point clamped (NPC) converter’s capability to connect capacitors in series, all with a simple control that enables the algorithm associated to the proposed inverter operate correctly in an open loop operation. A technique of pulse width modulation (PWM) is employed to maintain capacit

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11

D., Selvabharathi, Palanisamy R., Selvakumar K., et al. "Simulation of Zeta Converter based 3-Level NPC Inverter with PV System." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 1 (2018): 1–6. https://doi.org/10.11591/ijeecs.v12.i1.pp1-6.

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This paper proposes increasing the efficiency of the autonomous Photovoltaic (PV) system by utilizing zeta converter alongside neutral point clamped multilevel inverters (NPC-MLI) based on innovative PWM scheme. The PV system acts as an input source and the relevant control of zeta converter through maximum power point tracking (MPPT) offers the maximum available power from the PV array connected to DC-link. To obtain a high voltage gain we need to exhaust the dc-link voltage as much as possible and reduce stress on the switches. For this the NPC-MLI algorithm approaches PWM technique to perfo

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Arkan, A. Kadum. "PWM control techniques for three phase three level inverter drives." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 1 (2020): 519–29. https://doi.org/10.12928/TELKOMNIKA.v18i1.12440.

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In this paper two very efficient pulse width modulation techniques were discussed named Sin pulse width modulation and space vector pulse width modulation. The basic structure of the three-level inverter neutral-point clamped is introduced and the basic idea about space vector pulse width modulation for three-level voltage source inverter has been discussed in detail. Nearest three vectors space vector pulse width modulation control algorithm is adopted as the control strategy for the three phase three level NPC inverter in order to compensate the neutral-point shifting. Mathematical formulati

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Selvabharathi, D., Palanisamy R, K. Selvakumar, et al. "Simulation of Zeta Converter Based 3-level NPC Inverter with PV System." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 1 (2018): 1. http://dx.doi.org/10.11591/ijeecs.v12.i1.pp1-6.

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<span lang="EN-US">This paper proposes increasing the efficiency of the autonomous Photovoltaic (PV) system by utilizing zeta converter alongside neutral point clamped multilevel inverters (NPC-MLI) based on innovative PWM scheme. The PV system acts as an input source and the relevant control of zeta converter through maximum power point tracking (MPPT) offers the maximum available power from the PV array connected to DC-link. To obtain a high voltage gain we need to exhaust the dc-link voltage as much as possible and reduce stress on the switches. For this the NPC-MLI algorithm approach

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14

Ma, Zhixun, Haichuan Niu, Xiang Wu, Xu Zhang, and Guobin Lin. "An Improved Overmodulation Strategy for a Three-Level NPC Inverter Considering Neutral-Point Voltage Balance and Common-Mode Voltage Suppression." Sustainability 14, no. 19 (2022): 12558. http://dx.doi.org/10.3390/su141912558.

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The three-level neutral-point clamped voltage source inverter (3L-NPC-VSI) is widely used in the maglev traction systems due to its high output voltage, large output capacity and low output current harmonics. In order to improve the utilization of the DC-bus voltage, an overmodulation strategy is necessary. This paper proposes an improved overmodulation strategy based on the minimum amplitude error method for a 3L-NPC-VSI. Compared with the conventional overmodulation strategy based on the minimum amplitude error method, the utilization of the DC-bus voltage is higher. Meanwhile, a virtual spa

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CHENNAI, Salim. "Efficiency of Series APF based on Nine-level NPC Inverter Compared to Seven-level Configuration." Electrotehnica, Electronica, Automatica 71, no. 3 (2023): 24–32. http://dx.doi.org/10.46904/eea.23.71.4.1108003.

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This article presents the performance comparison of Series Active Power Filter (Series APF) based on seven and nine multi-level Neutral Point Clamped (NPC) inverters using the same control scheme. The Series APF is one of the most efficient and effective modern custom power devices used in power distribution networks to compensate voltage harmonic and all voltage disturbances. The conventional configuration based on voltage source inverter (VSI) operated at very high switching frequency presents several drawbacks and limited for low power applications. To overcome these problems and improve th

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Cherifi, Djamila, Yahia Miloud, and Mohamed Mostefai. "Performance of Neutral Point Clamped Five Level Inverter Using Space Vector Modulation Control Fed by DPC-VF-SVM Rectifier." WSEAS TRANSACTIONS ON POWER SYSTEMS 16 (November 20, 2021): 275–87. http://dx.doi.org/10.37394/232016.2021.16.28.

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The purpose of this paper is to develop a control and regulation method for the input DC voltage of a five level neutral point clamping (NPC) inverter feeding a induction motor. In this context, the authors propose in the first part, the control strategy of three-phase pulse width modulation rectifier, they propose the virtual flux-based direct control (DPC_VF) with vector modulation (SVM), this method is applied for the enhancement of network power quality by compensation of harmonic currents produced by an non linear load, and good regulation of DC-bus voltage. The second part of the paper i

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Sakina, Ammari, Benaboud Aziza, and Talea Mohamed. "PI-based PLL and 24-sector control of a 3P-3L-NPC inverter for grid-tied PV system synchronization." International Journal of Applied Power Engineering 11, no. 3 (2022): 179~185. https://doi.org/10.11591/ijape.v11.i3.pp179-185.

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This article addresses one of the most serious issues in electricity: frequency and voltage anomalies. Actually, because renewable energy production is intermittent, the frequency and voltage of electricity produced are unstable and dependent on weather conditions. This issue causes industrial processes to fail, affecting the quality of the electrical supply and having a massive economic impact. Power electronics inverters are designed to compensate for system fluctuations in solar power generation. However, measurement noise in the grid voltage desynchronizes the inverter and network signals.

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Beniak, Ryszard, Krzysztof Górecki, and Krzysztof Rogowski. "Real-Time Switching Number Reduction SVM for a Two-Phase Motor Powered by Three-Level NPC Inverter." Energies 16, no. 2 (2023): 749. http://dx.doi.org/10.3390/en16020749.

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A three-level neutral point clamped inverter with three phase legs is often used to power three-phase electrical motors. This type of multilevel inverter has its advantages over two-level inverters. The main advantages are lower harmonic distortion and less stress on motor windings. This three-level inverter can be also used as a power source for a two-phase induction motor. A one-phase induction motor with a starting capacitor and auxiliary windings is in fact a two-phase induction motor. In this article, we show that the switching number reduction method, previously presented for use with th

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19

Iwaszkiewicz and Mysiak. "Supply System for Three-Level Inverters Using Multi-Pulse Rectifiers with Coupled Reactors." Energies 12, no. 17 (2019): 3385. http://dx.doi.org/10.3390/en12173385.

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The paper presents a proposal of the multi-pulse AC/DC converter for providing supply for multilevel inverters and considerably reducing the line current distortion factor. It can be applied as a suitable source of DC voltage and is convenient to supply such inverters that need three or more voltage terminals to supply all sections of the inverter. The converter in question works as a multi-pulse rectifier supplying a three-level NPC (Neutral Point Clamped) inverter. The load introduced by the inverter is simulated as an impedance depended on a selected inverter state. All possible states are

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Essakhi, Hassan, Sadik Farhat, Yahya Dbaghi, and Diyae Daou. "Indirect power control of grid-connected photovoltaic system using fuzzy control with a three-level inverter." Indonesian Journal of Electrical Engineering and Computer Science 28, no. 1 (2022): 76. http://dx.doi.org/10.11591/ijeecs.v28.i1.pp76-87.

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This paper proposes an enhanced study of a photovoltaic generator (PVG) connected to the grid. A fuzzy maximum power point tracking (MPPT) is used to extract maximum power. The control strategy adopted gives the possibility to control separately the active and reactive power. the voltage control at the input of the three levels inverter allows fixing the reference currents in the DQ frame to control indirectly the power injected into the grid. The use of a three-level neutral point clamped voltage source inverter (3L-NPC-VSI) with space vector pulse width modulation (SVPWM) control and the RL

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Essakhi, Hassan, Sadik Farhat, Yahya Dbaghi, and Diyae Daou. "Indirect power control of grid-connected photovoltaic system using fuzzy control with a three-level inverter." Indonesian Journal of Electrical Engineering and Computer Science 28, no. 1 (2022): 76–87. https://doi.org/10.11591/ijeecs.v28.i1.pp76-87.

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This paper proposes an enhanced study of a photovoltaic generator (PVG) connected to the grid. A fuzzy maximum power point tracking (MPPT) is used to extract maximum power. The control strategy adopted gives the possibility to control separately the active and reactive power. the voltage control at the input of the three levels inverter allows fixing the reference currents in the DQ frame to control indirectly the power injected into the grid. The use of a three-level neutral point clamped voltage source inverter (3L-NPC-VSI) with space vector pulse width modulation (SVPWM) control and the RL

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22

Ammari, Sakina, Aziza Benaboud, and Mohamed Talea. "PI-based PLL and 24-sector control of a 3P-3L-NPC inverter for grid-tied PV system synchronization." International Journal of Applied Power Engineering (IJAPE) 11, no. 3 (2022): 179. http://dx.doi.org/10.11591/ijape.v11.i3.pp179-185.

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This article addresses one of the most serious issues in electricity: frequency and voltage anomalies. Actually, because renewable energy production is intermittent, the frequency and voltage of electricity produced are unstable and dependent on weather conditions. This issue causes industrial processes to fail, affecting the quality of the electrical supply and having a massive economic impact. Power electronics inverters are designed to compensate for system fluctuations in solar power generation. However, measurement noise in the grid voltage desynchronizes the inverter and network signals.

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23

Farouk, Hadj Benali, and Azzouz Fouad. "Comparison of Instantaneous Reactive and Notch Filter Algorithms Seven Level Parallel Active Filter." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1779–88. https://doi.org/10.11591/ijece.v7i4.pp1779-1788.

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This work focused on the association of a seven level Neutral Point Clamped inverter and a parallel active filter. In order to test the efficiency of the 7 level parallel active filter, two reference current generating algorithms are used. The instantaneous reactive power algorithm and the notch filter algorithm. In this study, the instantaneous reactive power method and the notch filter method are presented. Than a section which gives a recall of the NPC multilevel inverter and PWM strategy. A comparison between the two reference current generating algorithms is made. The subjects of comparis

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A. N. Shishkov, V. K. Le, M. M. Dudkin,. "An Algorithm for a Space-Vector Pulse Width Modulation with a Hybrid Switching Sequence for a Three-Level Neutral Point Clamped Voltage Source Inverter." Power System Technology 48, no. 1 (2024): 55–84. http://dx.doi.org/10.52783/pst.237.

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This paper proposes a new algorithm for a space-vector pulse width modulation (SVPWM) with a hybrid switching sequence (SS) designed to control a three-level (3L) neutral point clamped (NPC) voltage source inverter (VSI). Based on the advantages of five-stage and seven-stage SS, we designed a hybrid SS to improve four key parameters in the system: inverter output current quality, neutral point (NP) and common-mode (CM) voltage levels, and switching losses of power switches. The proposed algorithm flexibly regulates meeting the four criteria depending on the system operating conditions by chang

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Ramasamy, Palanisamy, Vijayakumar Krishnasamy, Mohamed Ali Jagabar Sathik, Ziad M. Ali, and Shady H. E. Abdel Aleem. "Three-Dimensional Space Vector Modulation Strategy for Capacitor Balancing in Split Inductor Neutral-Point Clamped Multilevel Inverters." Journal of Circuits, Systems and Computers 27, no. 14 (2018): 1850232. http://dx.doi.org/10.1142/s0218126618502328.

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Capacitor imbalance is one of the major drawbacks of a neutral-point clamped multilevel inverter (NPC-MLI). The capacitor imbalance rises due to the nonuniform switching, nonideal DC link capacitors, improper commutation, and various asymmetrical phase currents in switching states. The imbalance can be minimized by using proper switching using a redundancy switching method and avoiding the usage of medium vectors. The computational cost of this system is to be decided by the level of the inverter system. This paper presents a comprehensive three-dimensional space vector modulation (3D-SVM) str

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Hadj Benali, Farouk, and Fouad Azzouz. "Comparison of Instantaneous Reactive and Notch Filter Algorithms Seven Level Parallel Active Filter." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1779. http://dx.doi.org/10.11591/ijece.v7i4.pp1779-1788.

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<p class="Abstract">This work focused on the association of a seven level Neutral Point Clamped inverter and a parallel active filter. In order to test the efficiency of the 7 level parallel active filter, two reference current generating algorithms are used. The instantaneous reactive power algorithm and the notch filter algorithm. In this study, the instantaneous reactive power method and the notch filter method are presented. Than a section which gives a recall of the NPC multilevel inverter and PWM strategy. A comparison between the two reference current generating algorithms is made

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Mansour, Benyamina, Tahri Ali, and Boukortt Abdelkader. "State feedback control of advanced static var compensator using a five-level NPC inverter topology." International Journal of Power Electronics and Drive System (IJPEDS) 12, no. 1 (2021): 345–55. https://doi.org/10.11591/ijpeds.v12.i1.pp345-355.

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This paper deals with the modeling and control of an advanced static var compensator (ASVC) using a five-level neutral point-clamped (NPC) voltage source inverter (VSI). The nonlinear state space model of the five-level ASVC is obtained from the d-q axis frame. The effectiveness of this compensator highly depends on the choice of the control strategy. The proposed state feedback control (SFC) technique is applied to adjust the ASVC Var flow with the AC transmission network and achieve DC voltage capacitor balance. The dynamic performance of the ASVC based SFC controller is evaluated under seve

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Benyamina, Mansour, Ali Tahri, and Abdelkader Boukortt. "State feedback control of advanced static var compensator using a five-level NPC inverter topology." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 1 (2021): 345. http://dx.doi.org/10.11591/ijpeds.v12.i1.pp345-355.

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This paper deals with the modeling and control of an advanced static var compensator (ASVC) using a five-level neutral point-clamped (NPC) voltage source inverter (VSI). The nonlinear state space model of the five-level ASVC is obtained from the d-q axis frame. The effectiveness of this compensator highly depends on the choice of the control strategy. The proposed state feedback control (SFC) technique is applied to adjust the ASVC Var flow with the AC transmission network and achieve DC voltage capacitor balance. The dynamic performance of the ASVC based SFC controller is evaluated under seve

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Pranita Chavan. "Optimizing Power Quality in Distribution Systems: A Three-Phase Three-Level Shunt Hybrid Active Filter with Multilevel Inverter Approach." Panamerican Mathematical Journal 34, no. 1 (2024): 155–65. http://dx.doi.org/10.52783/pmj.v34.i1.913.

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This paper presents an advanced solution for improving power quality in distribution systems through the implementation of a Three-Phase Three-Level Shunt Hybrid Active Filter (SHAF) with a Multilevel Inverter. The SHAF, utilizing a Three-Level Neutral Point Clamped Voltage Source Inverter actively mitigates harmonics, with a comprehensive performance analysis considering the impact of active and passive parameters on power quality improvement. The proposed system incorporates TPTL (Three phase 3-Level) NPC inverter technology to reduce switch ratings and enhance harmonic compensation. Various

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CHENNAI, Salim. "Series APF based on Five and Seven-Level NPC Inverters using modified PQ Method." Electrotehnica, Electronica, Automatica 71, no. 1 (2023): 22–29. http://dx.doi.org/10.46904/eea.23.71.1.1108003.

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This paper presents the performance analysis of Series Active Power Filter (Series APF) based on five and seven-level neutral point clamped (npc) using modified instantaneous reactive power control strategy to use for harmonic and all voltage disturbances compensation. The conventional configuration based on standard voltage source inverter (VSI) with hysteresis controller presents several drawbacks such us uneven switching frequency and limited power applications. Multi-level inverters such us Five and seven-level are currently being investigated and used in various industrial applications; t

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Li, Zhongliang. "Analysis and classification of Non-isolated inverter leakage currents for photovoltaic systems." MATEC Web of Conferences 386 (2023): 02002. http://dx.doi.org/10.1051/matecconf/202338602002.

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In the past few years, there has been a growing concern about the pollution caused by fossil fuels, leading to a significant interest in photovoltaic power generation due to its clean and environmentally friendly features. However, suppressing leakage currents is a major problem for Non-isolated PV inverters. This paper focuses on the leakage current suppression methods, summarises three main leakage current suppression paths and systematically analyses and classifies the DC-bypass topology, the H5 topology and the Neutral Point Clamped (NPC) three-level topology. In order to address the issue

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Idkhajine, Lahoucine, Mohamed Aarab, and Eric Monmasson. "System Identification–Based Adaptive Real-Time Simulators for Power Electronic Converters—Application to Three-Phase and NPC Inverters." Electronics 12, no. 5 (2023): 1094. http://dx.doi.org/10.3390/electronics12051094.

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This paper deals with the real-time simulation of power electronic converters. It discusses a new approach for designing embedded real-time simulators (eRTSs) that approximate the static and dynamic behavior of a power converter at the switching scale. The main concept is to approximate the voltage/current experimental characteristics of each switch using dedicated transfer functions obtained after a system identification process. The adaptive feature of such eRTS consists of developing varying and online reconfigurable coefficients transfer functions. The main potential of doing so is the pos

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Shanono, Ibrahim Haruna, Nor Rul Hasma Abdullah, and Aisha Muhammad. "A Survey of Multilevel Voltage Source Inverter Topologies, Controls, and Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (2018): 1186. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp1186-1201.

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Multi-level converters are every day attracting research interest due to it tremendous positive contributions they are making in the power industries. The converter has put hope in the minds of power electronic engineers that a time will come when it will break a record by providing an efficient means of utilizing the abundant renewable energy resources.<strong> </strong>The paper presents a review of multilevel voltage source converters that are widely being used in engineering applications. It reports the technological advancements in converter topologies of Flying Capacitor (FC)

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Bharatiraja, C., Pongiannan R.K., Yusuff Adedayo, Tariq Mohd, Maddileti Telugu, and Tharwinkumar. "A simple switching on-time calculation revision in multilevel inverter-space vector modulation to achieving extended voltage boundary operation." International Journal of Power Electronics and Drive System (IJPEDS) 10, no. 2 (2019): 653–61. https://doi.org/10.11591/ijpeds.v10.i2.pp653-661.

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In inverters’ pulse width modulation techniques (PWM) the Space Vector PWM (SVPWM) is a smart contestant due to its direct control in nature with variables which provide the straight forward finds to each inverter switching vector. The industrial drives are acquainting to use SVPWM owing extended speed –torque region operations. However, the extended SVPWM operation is uses much mathematical calculation to predict the switching on-times, which demands high digital platform. In order to reduce this calculation in this paper a simple on-time calculation based SVPWM is proposed. The p

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CHENNAI, Salim. "Investigation on the Performance of UPQC System based on Five and Seven-level NPC Inverter Topologies." Electrotehnica, Electronica, Automatica 72, no. 2 (2024): 13–21. http://dx.doi.org/10.46904/eea.23.72.2.1108002.

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This article presents an investigation on the performance of unified power quality conditioner (UPQC) system based on five and seven-level neutral point clamped (NPC) inverters, using similar strategy to identified current or voltage references and analogue control approaches for switching pulses generation via combined phase disposition-sinusoidal pulse width modulation (PD-SPWM) and fuzzy logic control scheme. The UPQC system is adopted to compensate the current source harmonics and all voltage disturbances simultaneously. It is designed by the combination of series and shunt active power fi

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Liang, Yingshan. "Application of Nanotechnology in Waste Water Treatment." MATEC Web of Conferences 386 (2023): 01002. http://dx.doi.org/10.1051/matecconf/202338601002.

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In the past few years, there has been a growing concern about the pollution caused by fossil fuels, leading to a significant interest in photovoltaic power generation due to its clean and environmentally friendly features. However, suppressing leakage currents is a major problem for Non-isolated PV inverters. This paper focuses on the leakage current suppression methods, summarises three main leakage current suppression paths and systematically analyses and classifies the DC-bypass topology, the H5 topology and the Neutral Point Clamped (NPC) three-level topology. In order to address the issue

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Wang, Guifeng, Peiru Li, and Yu Wang. "Non-Weighted Two-Stage Model Predictive Control Strategy Based on Three-Level NPC Inverter." Energies 17, no. 8 (2024): 1813. http://dx.doi.org/10.3390/en17081813.

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This paper investigates the asynchronous motors driven by a Three-Level Neutral-Point-Clamped Voltage Source Inverter (3L-NPC-VSI) and aims to achieve control without weight factors and reduce torque ripple. It puts forward a non-weighted two-stage Finite-Control-Set Model Predictive Control (FCS-MPC) strategy. First, a hierarchical optimization method is adopted to address the difficulty of setting weight factors in traditional FCS-MPC applications. The method offers stratified designs of three performance indices, voltage jump, common-mode voltage, and current tracking, obviating the need fo

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C., Bharatiraja, R. K. Pongiannan, Adedayo Yusuff, Mohd Tariq, Telugu Maddileti, and Tharwinkumar Tharwinkumar. "A simple switching on-time calculation revision in multilevel inverter-space vector modulation to achieving extended voltage boundary operation." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (2019): 653. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp653-661.

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In inverters’ pulse width modulation techniques (PWM) the Space Vector PWM (SVPWM) is a smart contestant due to its direct control in nature with variables which provide the straight forward finds to each inverter switching vector. The industrial drives are acquainting to use SVPWM owing extended speed –torque region operations. However, the extended SVPWM operation is uses much mathematical calculation to predict the switching on-times, which demands high digital platform. In order to reduce this calculation in this paper a simple on-time calculation based SVPWM is proposed. The proposed SVPW

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CHENNAI, Salim. "Unified Power Quality Conditioner Performance based on Multi-level Inverter Topologies using Intelligent Controllers." Algerian Journal of Signals and Systems 7, no. 3 (2022): 109–16. http://dx.doi.org/10.51485/ajss.v7i3.166.

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This paper presents unified power quality conditioner (UPQC) system based on three-level neutral point clamped (NPC) using Fuzzy and ANN controllers. The proposed UPQC is able to mitigate source current harmonics and compensate all voltage disturbances. It is designed by the integration of series and shunt active filters (AFs) sharing a common DC bus capacitor. The DC voltage is maintained constant using proportional integral voltage controller. The synchronous reference frame (SRF) theory is used to get the reference signals for the shunt APF and the power reactive theory (P-Q theory) for the

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Debdouche, Naamane, Brahim Deffaf, Habib Benbouhenni, Zarour Laid, and Mohamed I. Mosaad. "Direct Power Control for Three-Level Multifunctional Voltage Source Inverter of PV Systems Using a Simplified Super-Twisting Algorithm." Energies 16, no. 10 (2023): 4103. http://dx.doi.org/10.3390/en16104103.

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This study proposes a simplified super-twisting algorithm (SSTA) control strategy for improving the power quality of grid-connected photovoltaic (PV) power systems. Some quality issues are considered in this study including the power factor, reducing the total harmonic distortion (THD) of current, compensating the reactive power, and injecting at the same time the energy supplied by the PV system into the grid considering non-linear load. This improvement is achieved by two topologies; controlling both the boost DC–DC converter and the DC–AC inverter that links the PV system to the grid. The D

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Kang, Jin-Wook, Seung-Wook Hyun, Yong Kan, Hoon Lee, and Jung-Hyo Lee. "A Novel Zero Dead-Time PWM Method to Improve the Current Distortion of a Three-Level NPC Inverter." Electronics 9, no. 12 (2020): 2195. http://dx.doi.org/10.3390/electronics9122195.

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This paper proposes a novel pulse width modulation (PWM) for a three-level neutral point clamped (NPC) voltage source inverter (VSI). When the conventional PWM method is used in three-level NPC VSI, dead time is required to prevent a short circuit caused by the operation of complementary devices on the upper and lower arms. However, current distortion is increased because of the dead time and it can also cause a voltage unbalance in the dc-link. To solve this problem, we propose a zero dead-time width modulation (ZDPWM) which does not require dead time used in complementary operation. The prop

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Sengamalai, Usha, T. M. Thamizh Thentral, Palanisamy Ramasamy, et al. "Mitigation of Circulating Bearing Current in Induction Motor Drive Using Modified ANN Based MRAS for Traction Application." Mathematics 10, no. 8 (2022): 1220. http://dx.doi.org/10.3390/math10081220.

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Induction motors are popularly used in various applications because of the proposed modest construction, substantiated process, and limited size of specific power. The traditional AC traction drives are experimentally analyzed. There is a high circulating current due to the high Common-Mode Voltage (CMV). The high Circulating Bearing Current (CBC) is a major problem in conventional two-level voltage source inverter fed parallel-connected sensor-based induction motors for traction applications. A sensorless method is well known for shrinking costs and enhancing the reliability of an induction m

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Pal, Rakeshwri, and Sushma Gupta. "Performance analysis of modified dynamic voltage restorer (DVR) employed to a grid connected solar PV system." International Journal of Engineering & Technology 7, no. 3 (2018): 1351. http://dx.doi.org/10.14419/ijet.v7i3.13625.

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Among various power quality problems, voltage sag and swell are dominant where loads are very sensitive to the voltage disturbances. Various custom power devices are introduced recently to overcome these voltage issues, dynamic voltage restorer (DVR) is one of them. It offers very cost effective solution for problems such as voltage sag, swell and harmonics by establishing the proper voltage level during voltage disturbances to protect sensitive loads. In this paper, performance of DVR to improve power quality is done for solar photovoltaic (PV) based generation system feeding the grid and the

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Husen, Haider Muhamad, and Salar Ahmed Qadir. "MSVPWM Based-SAPF For Harmonic Mitigation in The Distribution Network Under Unbalanced Condition." Kurdistan Journal of Applied Research 5, no. 1 (2020): 149–63. http://dx.doi.org/10.24017/science.2020.1.8.

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Unbalanced input source voltages generate extra current harmonics in addition to non-linear loads which distorts the power quality in the entire power systems. Three-phase multi-level neutral point clamped (NPC) converter based shunt active harmonic filter (SAHF) are used as a solution to overcome problems due to current harmonics. In this work, synchronous reference frame (d-q) algorithm is selected to detect the harmonic current components, Proportional-integral (PI) controller is utilized to ameliorate the storage of energy in the dc-link capacitor and the multilevel space vector pulse widt

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Murillo-Yarce, Duberney, Baldomero Araya, Carlos Restrepo, Marco Rivera, and Patrick Wheeler. "Impact of Sequential Model Predictive Control on Induction Motor Performance: Comparison of Converter Topologies." Mathematics 11, no. 4 (2023): 972. http://dx.doi.org/10.3390/math11040972.

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Finite Set Model Predictive Control (FS-MPC) is a widely used technique in power electronic converter applications. One challenge in FS-MPC implementation is selecting appropriate weighting factors, as there is currently no established methodology for finding the best values. An alternative approach is to consider cost functions without weighting factors, as used by the Sequential Model Predictive Control (SMPC). In this paper, the performance of SMPC applied to induction motors is analyzed. The SMPC strategy involves sequentially evaluating simple cost functions by considering a limited numbe

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Maklakov, Aleksandr S., Aleksandr A. Nikolaev, and Tatyana A. Lisovskaya. "Control over Grid Reactive Power by Using a Powerful Regenerative Controlled-Speed Synchronous Motor Drive." Designs 7, no. 3 (2023): 62. http://dx.doi.org/10.3390/designs7030062.

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The authors propose a technique for reactive power compensation using a powerful regenerative controlled-speed synchronous motor drive (SMD) based on a three-level (3L) neutral point clamped (NPC) active front-end rectifier (AFE) and a voltage source inverter (VSI). The review of technical solutions for reactive power compensation showed that the limitations on the transmitted reactive power in the system under consideration still have not been studied. The paper provides a mathematical description and proposes synthesis-friendly block diagrams of the mathematical 3L-NPC-AFE-VSI and SMD models

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Hoon, Yap, Mohd Amran Mohd Radzi, Mohd Khair Hassan, and Nashiren Farzilah Mailah. "Enhanced Instantaneous Power Theory with Average Algorithm for Indirect Current Controlled Three-Level Inverter-Based Shunt Active Power Filter under Dynamic State Conditions." Mathematical Problems in Engineering 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/9682512.

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An enhanced harmonics extraction algorithm based on Instantaneous Power (PQ) Theory is proposed for indirect current controlled (ICC) three-level neutral point diode clamped (NPC) inverter-based shunt active power filter (SAPF). SAPF is famous in current harmonics mitigation for its flexibility in dealing with dynamic state conditions. As for its controller, PQ Theory has served the major role in harmonics extraction algorithm due to its simple implementation features. However, it suffers from serious time delay due to its dependency on sluggish numerical filters. Furthermore, the algorithm is

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Bayhan, Sertac, та Hasan Komurcugil. "Lyapunov-Function-Based Controller for Single-Phase NPC Quasi-Z-Source Inverter with 2ω Frequency Ripple Suppression". Energies 14, № 1 (2020): 140. http://dx.doi.org/10.3390/en14010140.

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This paper proposes a high-performance control technique based on Lyapunov’s stability theory for a single-phase grid-connected neutral-point-clamped quasi-impedance source inverter with LCL filter. The Lyapunov function based control is employed to regulate the inverter output current, whereas the proportional resonant controller is used to produce the reference of the inverter output current that is needed in the Lyapunov function based control. Use of proportional resonant controller ensures the zero steady-state error in the grid current. An important feature of the proposed Lyapunov funct

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Rabie, Benioub, Kadri Laid, Adnane Mohamed, and Itaka Kenji. "Modulation Index Variation Effect on Harmonic Behavior of Fifteen Multilevel Inverter Neutral-Point-Clamped Topology." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1892–98. https://doi.org/10.11591/ijece.v7i4.pp1892-1898.

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The Market for photovoltaic cells (PV) has grown fast due to a higher demand on PV applications. However, there are still the transport and connection problems of the PV systems to the grid because of the difference in the current form. To assure the adequate connection between the PV sources and the network, the conversion of direct current (DC) to an alternative current (AC) is required and provided by an electronic device known as the inverter. In this last years, the conventional inverter structure reached its limits in power level and conversion performance. The multilevel inverter (MLI)

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Ge, Xuefeng, Mengxing Chen, Mingming Shi, et al. "A Single-Stage Buck-Boost Three-Level Neutral-Point-Clamped Inverter with Two Input Sources for the Grid-Tied Photovoltaic Power Generation." Mathematical Problems in Engineering 2019 (April 2, 2019): 1–15. http://dx.doi.org/10.1155/2019/3238159.

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This paper proposes a novel single-stage buck-boost three-Level neutral-point-clamped (NPC) inverter with two independent dc sources coupled for the grid-tied photovoltaic (PV) application, which can effectively solve the unbalanced operational conditions generally appearing between two independent PV sources. The proposed control scheme can simultaneously guarantee the maximum power point (MPP) operation of both PV sources and maintain the output waveform quality. Compared to the traditional two-stage PV inverter, the proposed NPC inverter could reduce the PV array voltage requirement and the

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