Results 1 to 10 of about 5,828,637 (285)
Energies, 2023 Three-level neutral-point clamped (NPC) inverters are widely used in the new energy power generation, motor drive, and many other occasions. However, the neutral-point voltage imbalance of an NPC inverter will affect the output of the inverter system ...
Guo Chen +4 more
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Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters [PDF]
Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting, 2002 The authors present the analysis of the neutral-point potential variation of the neutral-point-clamped voltage source PWM (pulse-width-modulation) inverter (NPC-VSI) for AC motor drives and static VAr compensators (SVC). The potential variation is analyzed with the focus on the current flowing out of or into the neutral point of the DC link.
Ogasawara, Satoshi, Akagi, Hirofumi
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Modified Predictive Control Method of Three-Level Simplified Neutral Point Clamped Inverter for Common-Mode Voltage Reduction and Neutral-Point Voltage Balance [PDF]
IEEE Access, 2019 Three-level simplified neutral point clamped (NPC) inverters are studied due to lower harmonics and fewer switching devices. Nevertheless, this topology needs to obtain neutral point (NP) voltage balance through either control or modulation methods.
Fei Wang, Zhijun Li, Xiangrong Tong
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Neutral-Point Voltage Balancing Method for Three-Phase Three-Level Dual-Active-Bridge Converters
Energies, 2022 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.
Xinmi Wu, Yu Zhang, Jiawen Yang
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IEEE Access, 2021 This paper introduces an advanced space vector modulation technique for three-level neutral-point-clamped (3L-NPC) converters. The studied 3L-NPC converters within aircraft electric starter generator (ESG) systems normally operate at high modulation ...
Chen Li +5 more
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CES Transactions on Electrical Machines and Systems, 2022 Capacitor voltage imbalance is a significant problem for three-level inverters. Due to the mid-point modulation of these inverter topologies, the neutral point potential moves up or down depending on the neutral point current direction creating ...
Dereje Woldegiorgis, H. Alan Mantooth
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Optimal switching sequence model predictive control for three‐level NPC grid‐connected inverters
IET Power Electronics, 2021 In order to concentrate the frequency spectrum of the output voltage and improve the quality of grid currents for the three‐level neutral point clamped inverter with the model predictive control, this paper proposes an optimal switching sequence model ...
Jianguo Lyu +5 more
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Fault analysis in the 5-level multilevel NCA DC–AC converter
Automatika, 2023 The existing neutral clamped active inverter has common mode voltage with the high frequency which can reduce the severity with less voltage gain. The traditional active neutral point clamped (APC) DC–AC converter maintains great common mode voltage with
Perumal B, Suresh K, Parimalasundar E
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A Survey on Capacitor Voltage Control in Neutral-Point-Clamped Multilevel Converters [PDF]
Electronics, 2022 Neutral-point-clamped multilevel converters are currently a suitable solution for a wide range of applications. It is well known that the capacitor voltage balance is a major issue for this topology. In this paper, a brief summary of the basic topologies, modulations, and features of neutral-point-clamped multilevel converters is presented, prior to a ...
Alepuz Menéndez, Salvador +6 more
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Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters, 1993 The authors present the analysis of the neutral-point potential variation of the neutral-point-clamped voltage source PWM (pulse-width-modulation) inverter (NPC-VSI) for AC motor drives and static VAr compensators (SVC). The potential variation is analyzed with the focus on the current flowing out of or into the neutral point of the DC link.
Ogasawara, Satoshi +2 more
openaire +4 more sources