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Journal articles on the topic 'Three level neutral point quasi'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Husev, Oleksandr, Carlos Roncero‐Clemente, Enrique Romero‐Cadaval, Dmitri Vinnikov, and Serhii Stepenko. "Single phase three‐level neutral‐point‐clamped quasi‐Z‐source inverter." IET Power Electronics 8, no. 1 (2015): 1–10. http://dx.doi.org/10.1049/iet-pel.2013.0904.

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2

M., Aravindan, Balaji V., Saravanan V., and Arumugam M. "Neutral point clamped quasi Z source inverter for photovoltaic systems." International Journal of Applied Power Engineering 8, no. 3 (2019): 277~286. https://doi.org/10.5281/zenodo.7359098.

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Multilevel inverters are becoming popular for power conversion in renewable energy systems, AC-DC hybrid micro grids etc. The voltage stress and inrush current through these inverter leg switches are quite higher as compared to the load ratings which increase the chances of inverter leg switch failure. A three level neutral point clamped quasi Z source inverter topology is discussed in this paper which has the features of lower component count, reduced capacitor voltage stress, and it can be operated at different control strategies to achieve wide range of voltage boosting ability, suited for

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3

Roncero-Clemente, Carlos, Enrique Romero-Cadaval, Oleksandr Husev, and Dmitri Vinnikov. "Simulation Study of Different Modulation Techniques for Three-Level Quasi-Z-Source Inverter." Electrical, Control and Communication Engineering 1, no. 1 (2012): 11–17. http://dx.doi.org/10.2478/v10314-012-0002-3.

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Abstract In this paper several modulation techniques for a three-level neutral-point-clamped quasi impedance source inverter are proposed and discussed. Mathematical descriptions with simulation results are presented for each modulation technique. Their advantages and disadvantages are shown and guidelines for further improvement are provided.

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M., Aravindan, Balaji V., V. Saravanan, and M. Arumugam. "Neutral point clamped quasiZ source inverter for photovoltaic systems." International Journal of Applied Power Engineering 8, no. 3 (2019): 277–86. https://doi.org/10.11591/ijape.v8.i3.pp277-286.

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Multilevel inverters are becoming popular for power conversion in renewable energy systems, AC-DC hybrid micro grids etc. The voltage stress and inrush current through these inverter leg switches are quite higher as compared to the load ratings which increase the chances of inverter leg switch failure. A three level neutral point clamped quasi Z source inverter topology is discussed in this paper which has the features of lower component count, reduced capacitor voltage stress, and it can be operated at different control strategies to achieve wide range of voltage boosting ability, suited for

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5

Reusser, Carlos A., and Hector Young. "Four-Level Quasi-Nested Inverter Topology for Single-Phase Applications." Electronics 10, no. 3 (2021): 233. http://dx.doi.org/10.3390/electronics10030233.

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In this paper, a novel four-level single-phase multilevel converter is introduced, consisting of six active switches arranged in a quasi-nested configuration. The proposed topology synthesizes its output voltage levels with respect to a floating neutral point, using four cascaded capacitors with identical voltage levels. The proposed converter contains a reduced number of components compared to the neutral point clamped (NPC) or active-NPC topologies (ANPC) for the same number of output voltage levels, since it does not require diode or active switch clamping to a neutral point. Moreover, no f

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Aqeel Anwar, Muhammad, Ghulam Abbas, Irfan Khan, Ahmed Bilal Awan, Umar Farooq, and Saad Saleem Khan. "An Impedance Network-Based Three Level Quasi Neutral Point Clamped Inverter with High Voltage Gain." Energies 13, no. 5 (2020): 1261. http://dx.doi.org/10.3390/en13051261.

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Due to the impediments of voltage source inverter and current source inverter, Z-Source Inverter (ZSI) has become notorious for better power quality in low and medium power applications. Several modifications are proposed for impedance source in the form of Quasi Z-Source Inverter (QZSI) and Neutral Point Clamped Z-Source Inverter (NPCZSI). However, due to the discontinuity of the source current, NPCZSI is not suitable for some applications, i.e., fuel cell, UPS, and hybrid electric vehicles. Although in later advancements, source current becomes continuous in multilevel QZSI, low voltage gain

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7

Yu, Deqing, Qiming Cheng, Jie Gao, Fengren Tan, and Yu Zhang. "Three‐level neutral‐point‐clamped quasi‐Z‐source inverter with reduced Z‐source capacitor voltage." Electronics Letters 53, no. 3 (2017): 185–87. http://dx.doi.org/10.1049/el.2016.3930.

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8

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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9

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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10

Husev, Oleksandr, Carlos Roncero-Clemente, Enrique Romero-Cadaval, Dmitri Vinnikov, and Tanel Jalakas. "Three-level three-phase quasi-Z-source neutral-point-clamped inverter with novel modulation technique for photovoltaic application." Electric Power Systems Research 130 (January 2016): 10–21. http://dx.doi.org/10.1016/j.epsr.2015.08.018.

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11

Aravindan, M., V. Balaji, V. Saravanan, and M. Arumugam. "Neutral point clamped quasi Z source inverter for photovoltaic systems." International Journal of Applied Power Engineering (IJAPE) 8, no. 3 (2019): 277. http://dx.doi.org/10.11591/ijape.v8.i3.pp277-286.

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<p>Multilevel inverters are becoming popular for power conversion in renewable energy systems, AC-DC hybrid micro grids etc. The voltage stress and inrush current through these inverter leg switches are quite higher as compared to the load ratings which increase the chances of inverter leg switch failure. A three level neutral point clamped quasi Z source inverter topology is discussed in this paper which has the features of lower component count, reduced capacitor voltage stress, and it can be operated at different control strategies to achieve wide range of voltage boosting ability, su

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12

Stepenko, Serhii, Oleksandr Husev, Dmitri Vinnikov, Carlos Roncero-Clemente, Sergio Pires Pimentel, and Elena Santasheva. "Experimental Comparison of Two-Level Full-SiC and Three-Level Si–SiC Quasi-Z-Source Inverters for PV Applications." Energies 12, no. 13 (2019): 2509. http://dx.doi.org/10.3390/en12132509.

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The paper presents a comparative study of two solar string inverters based on the Quasi-Z-Source (QZS) network. The first solution comprises a full-SiC two-level QZS inverter, while the second design was built based on a three-level neutral-point-clamped QZS inverter with Silicon based Metal–Oxide–Semiconductor Field-Effect Transistors (Si MOSFETs). Several criteria were taken into consideration: the size of passive elements, thermal design and size of heatsinks, voltage stress across semiconductors, and efficiency investigation. The Photovoltaic (PV)-string rated at 1.8 kW power was selected

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13

Liu, Yangbo, Longyun Kang, Lin Liu, and Chunsheng Zhu. "Model predictive power control for grid-tied T-type three-level quasi-Z-source inverter with low complexity." Journal of Physics: Conference Series 2876, no. 1 (2024): 012023. http://dx.doi.org/10.1088/1742-6596/2876/1/012023.

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Abstract The appealing design known as T-type three-level quasi-Z-source inverters (T2LQZSI) can function in both step-down and step-up modes. Model predictive control for converters has also received a lot of interest. This article suggests a low-complexity model predictive power control for T-type quasi-Z-source inverters with neutral-point voltage (NP-V) balance to address the shortcomings of conventional model predictive control and achieve improved performance. The resulting voltage is produced by using a variety of vectors. For NP-V balance, the tiny vector is employed. In addition, a st

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14

Xu, Shi-Zhou, Chun-jie Wang, and Yu-feng Peng. "Power Device Thermal Fault Tolerant Control of High-Power Three-Level Explosion-Proof Inverter Based on Holographic Equivalent Dual-Mode Modulation." Active and Passive Electronic Components 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/6961832.

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It is necessary for three-level explosion-proof inverters to have high thermal stability and good output characteristics avoiding problems caused by power devices, such as IGBT, so it becomes a hot and difficult research point using only one control algorithm to guarantee both output characteristics and high thermal stability. Firstly, the simplified SVPWM (Space Vector Pulse Width Modulation) algorithm was illustrated based on the NPC (neutral-point-clamped) three-level inverter, and then the quasi-square wave control was brought in and made into a novel holographic equivalent dual-mode modul

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15

Do, Duc-Tri. "Quasi Z-Source Neutral-Point-Clamped Inverter Using SVM Technique to Eliminate Common Mode Voltage." Journal of Technical Education Science, no. 78A (August 28, 2023): 100–108. http://dx.doi.org/10.54644/jte.78a.2023.1293.

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In recent year, common mode voltage (CMV) elimination methods are considered to improve the reliability of three-level quasi-switched boost T-type inverter (TL-qSBT2I). The space-vector modulation method (SVM) can control the inverter operation to eliminate the CMV. The proposed method applies medium vectors and zero vector to synthesize the reference vector to eliminate CMV while the output voltage is unchanged compared to SinPWM technique. In order to prevent the active vectors and the output voltage from being affected, the shoot-through vector is inserted inside the zero vector. Accordingl

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16

Qin, Changwei, Chenghui Zhang, Xiangyang Xing, Xiaoyan Li, Alian Chen, and Guangxian Zhang. "Simultaneous Common-Mode Voltage Reduction and Neutral-Point Voltage Balance Scheme for the Quasi-Z-Source Three-Level T-Type Inverter." IEEE Transactions on Industrial Electronics 67, no. 3 (2020): 1956–67. http://dx.doi.org/10.1109/tie.2019.2907501.

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17

Otsubo, M., A. Hosoi, T. Sakurai, T. Yamatogi, and H. Kawada. "Effect of span/thickness ratio on fatigue properties of thick quasi-isotropic CFRP laminates subjected to three-point bending loading." IOP Conference Series: Materials Science and Engineering 1293, no. 1 (2023): 012019. http://dx.doi.org/10.1088/1757-899x/1293/1/012019.

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Abstract In this study, three-point bending fatigue tests were conducted to investigate damage growth behavior of thick quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates. The span/thickness ratio L/h was varied for both static tests and fatigue tests to determine failure mechanisms. In the static tests, the failure mode changed from delamination to compressive buckling as span/thickness ratio increases. The apparent interlaminar shear strength was higher for the specimens with lower span/thickness ratios, and the shear failure was likely to be caused by oblique crack in 90° plie

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18

Faiz Minai, Ahmad, Akhlaque Ahmad Khan, Rupendra Kumar Pachauri, Hasmat Malik, Fausto Pedro García Márquez, and Alfredo Arcos Jiménez. "Performance Evaluation of Solar PV-Based Z-Source Cascaded Multilevel Inverter with Optimized Switching Scheme." Electronics 11, no. 22 (2022): 3706. http://dx.doi.org/10.3390/electronics11223706.

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AC loads may demand a fixed or variable voltage at their input terminals. When using inverters to power such loads, the response of the inverter must be precisely controlled to suit the demands of the AC loads. Inverters with higher efficiency and sensitivity will play an increasingly essential role as the need for solar PV applications in prospective green technology grows. To increase power quality and provide a reliable power source, an inverter architecture with harmonic reduction approaches is proposed. The multilevel inverter (MLI), unlike conventional inverters, is developed by cascaded

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19

Dadashev, Ali Sh, Oleg K. Zenin, Ilia S. Miltykh, and Edgar S. Kafarov. "Morphometric Features of Different Types of Bifurcations in the Splenic Intraorgan Arterial System in Individuals of Different Gender and Age." I.P. Pavlov Russian Medical Biological Herald 32, no. 1 (2024): 81–92. http://dx.doi.org/10.17816/pavlovj321742.

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INTRODUCTION: A promising direction that has recently emerged in morphology is investigation of the arterial bed of various human organs as fractal or quasi-fractal systems. Conceptual models have been developed permitting a quantitative description of the vascular bed features. This approach will help to create a morphometric standard of the intraorgan blood flow, which will be useful in objective diagnosis of probable deviations from the normal structure. AIM: To identify the morphometric features of various types of bifurcations of the splenic intraorgan arterial bed in individuals of

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20

Gong, Bo, Shanmei Cheng, and Yi Qin. "Simple three-level neutral point voltage balance control strategy based on SVPWM." Archives of Electrical Engineering 62, no. 1 (2013): 15–23. http://dx.doi.org/10.2478/aee-2013-0002.

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Abstract The unbalance of the neutral point voltage is an inherent problem of three-level neutral-point-clamped (NPC) inverter, the effect of neutral point voltage balancing which is caused by voltage vector is analyzed, and the relationship of the voltage offset and neutral point voltage is studied in this paper. This paper proposes a novel neutral point balance strategy for three-level NPC inverter based on space vector pulse width modulation (SVPWM). A voltage offset is added to the modulation wave, and a closed-loop neutral point voltage balance control system is designed. In the control s

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21

Wu, Xinmi, Yu Zhang, and Jiawen Yang. "Neutral-Point Voltage Balancing Method for Three-Phase Three-Level Dual-Active-Bridge Converters." Energies 15, no. 17 (2022): 6463. http://dx.doi.org/10.3390/en15176463.

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Three-phase three-level dual-active-bridge (3L-DAB3) converters are a potential topology for high-voltage and high-power applications. Neutral-point voltage balancing is a complex and important issue for three-level (3L) circuits. Compared with the single-phase 3L dual-active-bridge converter, the self-balancing capability of the 3L-DAB3 is limited. To guarantee the reliability of the converter, a neutral-point voltage balancing method for the 3L-DAB3 is proposed in this paper. First, the neutral-point voltage balancing principle of the 3L-DAB3 is analyzed. Then, the relationship between the d

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22

Wang, Y., X. Wu, P. Dai, and J. Zhou. "Neutral-point Potential Balancing Model and Algorithm in three-level Neutral-Point-Clamped Inverter." Australian Journal of Electrical and Electronics Engineering 9, no. 1 (2012): 99–107. https://doi.org/10.7158/1448837x.2012.11464314.

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23

Shishkov, Alexander N., Maxim M. Dudkin, and Van Kan Le. "Influence of switching sequences on the neutral point voltage balance in a three-level voltage source invertor." Izvestiya MGTU MAMI 17, no. 2 (2023): 195–206. http://dx.doi.org/10.17816/2074-0530-125204.

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BACKGROUND:Ensuring the voltage balance of the neutral point of the DC link within acceptable limits is one of the mandatory requirements during the operation of a three-level autonomous neutral point clamped voltage source inverter. It is known that neutral point voltage imbalance can adversely affect the operation of the inverter and the load at all, lead to the failure of both power switches and capacitors in the DC link. Neutral point voltage imbalance mostly often occurs due to the asymmetry of the nominal values of DC capacitors, inconsistent properties of switching devices, asymmetric t

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Lin, Jiajun. "Study on neutral-point voltage balancing control in three-level grid-connected photovoltaic inverter." Advances in Engineering Innovation 16, no. 1 (2025): 36–41. https://doi.org/10.54254/2977-3903/2025.21441.

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Three-level photovoltaic grid-connected inverters are widely used in the photovoltaic grid-connected systems because of their high efficiency and low harmonic characteristics. However, the major problem of the three-level inverter has always been its core challenge, significantly affecting its system reliability and performance. This study reviews the causes of neutral-point voltage imbalance, discusses three typical three-level inverter topologies, including neutral-point-clamped inverter, flying capacitor inverter, and cascaded H-bridge inverter, and compares their application effectiveness

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25

Hu, Cun Gang, San Shan Liu, Ye Yuan, and Hua Zhong Chen. "Selective Harmonic Elimination PWM Method Applied to Three-Level Photovoltaic NPC Inverter." Advanced Materials Research 614-615 (December 2012): 1530–33. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.1530.

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This paper introduces a selective harmonic elimination (SHE) PWM method based on neutral-point potential balancing applied to a three-level Photovoltaic NPC Inverter. The method combines the SHE with neutral-point potential balancing， and introduces a method based on multi-objective ant colony algorithm to solve the SHE-PWM non-linear equations. SHE-PWM control method of multi-objective ant colony algorithm considering about neutral-point potential balancing, there is no need to solve the initial value of the equation when solving the SHEPWM equations. Experimental results demonstrate the vali

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26

Guo, Yujing, and Junhuai Zhang. "Modulation Technique Design of An Improved Zero Common Mode Voltage (CMV)." Journal of Physics: Conference Series 2563, no. 1 (2023): 012020. http://dx.doi.org/10.1088/1742-6596/2563/1/012020.

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Abstract Voltage imbalance of neutral-point and CMV are hot issues in the research of three-level inverters. This paper first introduces the three-level topology of the neutral-point clamped (NPC) inverter. Aiming to eliminate CMV of three-level NPC and balance the voltage of the neutral point simultaneously, a virtual space vector pulse modulation (VSVPWM) strategy is proposed. Virtual voltage vectors of this strategy are composed of 3 medium vectors. The voltage of the neutral point is balanced since the average current of the neutral point is 0. Therefore, the balance index is introduced to

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27

Shen, Yanxia, Beibei Miao, Dinghui Wu, and Kader Ali Ibrahim. "Fault-Tolerant Control Strategy for Neutral-Point-Clamped Three-Level Inverter." Journal of Control Science and Engineering 2018 (February 1, 2018): 1–9. http://dx.doi.org/10.1155/2018/5126404.

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A fault-tolerant control technique is discussed for the Neutral-Point-Clamped (NPC) three-level inverter, which ensures that the NPC inverter operates normally even under device failures. A two-level leg is added to the NPC inverter; when the device open circuit fault occurs, the load of this faulty phase is connected to the neutral point of this two-level leg through the bidirectional thyristors. An improved Space Vector Pulse Width Modulation (SVPWM) strategy called “addition and subtraction substitution SVPWM” is proposed to effectively suppress fluctuation in capacitor neutral-point voltag

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28

Nicolaidou, Iolie, and Loizos Aristeidis. "The Design of a Gamified App for Supporting Undergraduates' Resilience." European Conference on Games Based Learning 16, no. 1 (2022): 648–50. http://dx.doi.org/10.34190/ecgbl.16.1.708.

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Supporting students in building psychological resilience is crucial considering the COVID-19 pandemic’s effect on the population’s mental health. Psychological resilience refers to finding ways to cope with stress and achieve goals despite obstacles. It is an important life skill that has become highly relevant in the post-pandemic era. Mobile devices and applications are becoming integral to users’ self-monitoring of health data for their access, convenience, and cost advantages. Most resilience apps target specific professional groups, are not gamified, and lack solid theoretical foundations

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29

Ojha, Amit, Pradyumn Chaturvedi, Arvind Mittal, and S. Jain. "Neutral Point Potential Control for Three Phase 3 - level Neutral Point Clamped Active Front End Converter." International Journal on Electrical Engineering and Informatics 9, no. 2 (2017): 342–63. http://dx.doi.org/10.15676/ijeei.2017.9.2.10.

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30

Jie Shen, Stefan Schröder, Robert Rösner, and S. El-Barbari. "A Comprehensive Study of Neutral-Point Self-Balancing Effect in Neutral-Point-Clamped Three-Level Inverters." IEEE Transactions on Power Electronics 26, no. 11 (2011): 3084–95. http://dx.doi.org/10.1109/tpel.2011.2138161.

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31

Chen, Hsin-Chih, Meng-Jiang Tsai, Yao-Bang Wang, and Po-Tai Cheng. "A Modulation Technique for Neutral Point Voltage Control of the Three-Level Neutral-Point-Clamped Converter." IEEE Transactions on Industry Applications 54, no. 3 (2018): 2517–24. http://dx.doi.org/10.1109/tia.2018.2799906.

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32

Liu, Yan, Xu Wang, and Yan Xing. "Research on SVPWM Method and its Neutral Point Potential Control." Advanced Engineering Forum 2-3 (December 2011): 39–42. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.39.

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Neutral-point potential unbalance is an inherent problem of Neutral-point-clamped three-level PWM rectifiers. If the problem of neutral point can’t be controlled appropriately, the harm of input current will increase, and even the dc-link capacitor and switches will be destroyed. Thus domestic and foreign experts have done lots of research on the balance control of Neutral-point-clamed and put forward many effective control methods. This paper proposes a novel SVPWM strategy for the three-level neutral-point-clamped voltage source inverter, based on the particular disposition of all the redund

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33

Lyu, Mingzhe, Chenxi Man, and Tinglian Zhou. "Mid-point potential balancing in three-level inverters." Journal of Physics: Conference Series 2479, no. 1 (2023): 012023. http://dx.doi.org/10.1088/1742-6596/2479/1/012023.

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Abstract Three-level inverters are among the best options for high voltage and high-power applications because of their high capacity, high rated voltage, low harmonic content of the output current, and minimal switching losses. However, the issue with mid-point voltage balancing is an inherent drawback of three-level inverters. The unbalanced mid-point voltage of a three-level inverter leads to low harmonics in the output voltage, causing voltage distortion and seriously reducing the power quality. The unbalanced mid-point voltage also puts more voltage strain on the DC bus side and power swi

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Cho, Ja-Hwi, Nam-Joon Ku, Seok-Eon Joung, and Dong-Seok Hyun. "A Small Signal Modeling of Three-level Neutral-Point-Clamped Inverter and Neutral-Point Voltage Oscillation Reduction." Transactions of the Korean Institute of Power Electronics 19, no. 5 (2014): 407–14. http://dx.doi.org/10.6113/tkpe.2014.19.5.407.

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35

Chen, Kewei, Weidong Jiang, and Peixia Wang. "An Extended DPWM Strategy With Unconditional Balanced Neutral Point Voltage for Neutral Point Clamped Three-Level Converter." IEEE Transactions on Industrial Electronics 66, no. 11 (2019): 8402–13. http://dx.doi.org/10.1109/tie.2018.2885735.

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Zhang, Maosong, Ying Cui, Qunjing Wang, et al. "A Study on Neutral-Point Potential in Three-Level NPC Converters." Energies 12, no. 17 (2019): 3367. http://dx.doi.org/10.3390/en12173367.

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This paper proposes an accurate mathematical model of three-level neutral-point-clamped (NPC) converters that can accurately represent the midpoint potential drift of the DC link with parameter perturbation. The mathematical relationships between the fluctuation in neutral-point voltage, the parametric perturbation, and the capacitance error are obtained as mathematical expressions in this model. The expressions can be used to quantitatively analyze the reason for the neutral-point voltage imbalance and balancing effect based on a zero-sequence voltage injection. The injected zero-sequence vol

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37

Hamed, Hany A., Ehab H. E. Bayoumi, and E. E. EL Kholy. "Fuzzy PLL for three-level neutral point clamped active rectifiers." International Journal of Industrial Electronics and Drives 2, no. 3 (2015): 170. http://dx.doi.org/10.1504/ijied.2015.072801.

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38

du Toit Mouton, H. "Natural balancing of three-level neutral-point-clamped PWM inverters." IEEE Transactions on Industrial Electronics 49, no. 5 (2002): 1017–25. http://dx.doi.org/10.1109/tie.2002.803205.

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39

Tang, Haiguo, Lingchao Kong, and Yong Wang. "A Novel Analysis of the Influence of Zero-Axis Control on Neutral-Point Potential Self-Balancing of Three-Level Converters." Electronics 13, no. 23 (2024): 4657. http://dx.doi.org/10.3390/electronics13234657.

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The neutral-point potential balance issues in three-level converters have obtained great attention. The popular view thinks that the neutral-point voltage deviation can be suppressed by regulating the injected zero-sequence component, whether via carrier modulation or space vector modulation techniques. However, this paper presents a novel finding: the efficacy of different frame controllers on the self-balancing of neutral-point potential in three-level converters differs when a comprehensive analysis of zero-sequence dynamics, including neutral-point current and PWM modulation, is conducted.

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40

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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Song, Wei Zhang, Yan Ru Zhong, Ying Ye, and Chen Xue. "Study on Modulation Strategy with Neutral-Point Balancing Control for Three-Level Two Stage Matrix Converter." Advanced Materials Research 433-440 (January 2012): 6951–58. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6951.

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Aim to the three-level neutral-point potential balancing problem of three-level two stage matrix converter(TLTSMC),which is a new topology from matrix converter family that can synthesis three-level voltage in order to improve output performance in terms of reduced harmonic contents, this paper discussed the operating principles and a space vector modulation strategy with neutral-point potential balancing control for this topology. The method is divided into two control stages. Space vector PWM without zero vectors is used for rectifier stage. The modulation method of inverter stage based on t

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Xiang, Chao-Qun, Cheng Shu, Ding Han, Bing-Kui Mao, Xun Wu, and Tian-Jian Yu. "Improved Virtual Space Vector Modulation for Three-Level Neutral-Point-Clamped Converter With Feedback of Neutral-Point Voltage." IEEE Transactions on Power Electronics 33, no. 6 (2018): 5452–64. http://dx.doi.org/10.1109/tpel.2017.2737030.

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AbolqasemiKharanaq, Fatemeh, Amirreza Poorfakhraei, Ali Emadi, and Berker Bilgin. "An Improved Carrier-Based PWM Strategy with Reduced Common-Mode Voltage for a Three-Level NPC Inverter." Electronics 12, no. 5 (2023): 1072. http://dx.doi.org/10.3390/electronics12051072.

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Double modulation wave carrier-based pulse width modulation (CBPWM) is a solution for eliminating the deviations of the neutral-point voltage (NPV) in three-level neutral-point clamped inverters. In this paper, a new hybrid CBPWM strategy is proposed that not only eliminates the neutral-point voltage oscillations but also reduces the common-mode voltage (CMV) by half. Furthermore, the harmonic content is also reduced compared with the available reduced CMV modulation by adjusting the modulation waves based on the location of the reference vector in the space vector diagram. An active neutral-p

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Han, Gang, Jian Wen Zhang, and Xu Cai. "Study on Experimental System for Three Level Neutral-Point-Clamped Converter." Advanced Materials Research 986-987 (July 2014): 1858–63. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1858.

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This paper focuses on the digital experimental system for neutral-point-clamped three-level converter. First, SVM’s digital implementation method is studied. As neutral-point voltage unbalance is an inherent problem for this topology, a practical capacitor voltage balance method is present. This method uses a variable factor as the small vectors’ adjustment coefficient, which is calculated by PI controller with capacitor voltage deviation. Then, a digital modular control system is proposed, in which both hardware and software system structures are designed in modular. The digital control syste

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Zhang, Xiao Lin, and Jing Bo Shi. "Neutral Point Potential Balance of Dual Three-Level Converter Based on Fuzzy Logic Control Strategy." Applied Mechanics and Materials 644-650 (September 2014): 3788–92. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.3788.

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In dual three-level converter system, the rectifier and inverter have unified problems of the neutral point potential imbalance.This paper analyzed the reasons of imbalance of neutral point potential in detail and summarized the relationship between vector status and four-quadrant status of three-level converters.Then a method based on fuzzy logic control (FLC) is proposed,which could be automatically adjust the balance factor.Combined the balance factor with the status of the converter the duration of positive and negative small vectors action could be obtained.Finally the balance of the neut

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Lee, Kui-Jun. "Analytical Modeling of Neutral Point Current in T-type Three-level PWM Converter." Energies 13, no. 6 (2020): 1324. http://dx.doi.org/10.3390/en13061324.

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Since a T-type three-level PWM converter has several intrinsic advantages, it has been researched for various applications such as grid-connected converter systems. However, it necessarily requires an additional voltage control loop for balancing the upper and the lower DC-link voltage. To satisfy this requirement, an offset voltage is widely used to provide a neutral point current without affecting other variables such as total DC-link voltage and three-phase input current. However, these methods are mostly based on the averaged value between the applied offset voltage and the neutral point v

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Santhakumar, C., C. Bharatiraja, K. Gowrishankar, K. M. Ravi Eswar, and J. Vinoth. "Extended over modulation zone three-dimensional SVPWM for three-level neutral-point-clamped." Materials Today: Proceedings 52 (2022): 1756–62. http://dx.doi.org/10.1016/j.matpr.2021.11.424.

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Shen, Zhan, Mengxing Chen, Huai Wang, Xiongfei Wang, and Frede Blaabjerg. "EMI Filter Robustness in Three-Level Active Neutral-Point-Clamped Inverter." IEEE Transactions on Power Electronics 37, no. 4 (2022): 4641–57. http://dx.doi.org/10.1109/tpel.2021.3124282.

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Ye, Zongbin, Yiming Xu, Fei Li, Xianming Deng, and Yuanzheng Zhang. "Simplified PWM Strategy for Neutral-Point-Clamped (NPC) Three-Level Converter." Journal of Power Electronics 14, no. 3 (2014): 519–30. http://dx.doi.org/10.6113/jpe.2014.14.3.519.

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Masisi, Lesedi, Pragasen Pillay, and Sheldon S. Williamson. "A Three-Level Neutral-Point-Clamped Inverter Synchronous Reluctance Machine Drive." IEEE Transactions on Industry Applications 51, no. 6 (2015): 4531–40. http://dx.doi.org/10.1109/tia.2015.2452895.

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