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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
doaj +3 more sources
A neutral-point voltage balance control method for 3L-NPC converters
Frontiers in Energy ResearchThe inherent problem of neutral-point potential imbalance in three-level neutral-point-clamped (3L-NPC) converters increases the risk of overvoltage in switching devices, causes increased output harmonic content, and seriously affects the performance and
Jun Wang
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Flying capacitor voltage balance and neutral point voltage regulation of PV array fed active neutral point clamped converter in real‐time HIL [PDF]
IET Power Electronics, 2020 This study deals with a new control strategy for flying capacitor (FC) based multilevel converter, in order to attain the desired reference value for five-level output voltage in active neutral point clamped (ANPC) converter.
Nidhi Mishra +4 more
semanticscholar +2 more sources
Energies, 2018 In order to solve the neutral-point voltage unbalancing problem for neutral-point clamped (NPC) three-level inverters under non-ideal grid conditions, a novel zero-sequence component injection method for modulation signals was proposed in this paper ...
Jian Guo Lyu +3 more
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IEEE Access, 2017 This paper presents a dynamic phasor-based model for three-level front-end VIENNA rectifiers. The proposed model comprehensively predicts the behavior of the ac- and dc-side variables of the rectifier on which the issue of neutral point (NP) voltage is ...
Tiefeng Gao +3 more
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Generalized PWM-Based Method for Multiphase Neutral-Point-Clamped Converters With Capacitor Voltage Balance Capability [PDF]
IEEE Transactions on Power Electronics, 2017 This paper presents a generalized pulse width modulation (PWM)-based control algorithm for multiphase neutral-point-clamped (NPC) converters. The proposed algorithm provides a zero sequence to be added to the reference voltages that contributes to improve the performance of the converter by: 1) Regulating the neutral-point (NP) current to eliminate ...
I. López +6 more
semanticscholar +5 more sources
Energies, 2016 This paper discussed the topology of in the three-level neutral point clamped cascaded rectifier (3LNPC-CR) for designing the Chinese Power Electronic Traction Transformer (PETT).
Xu Peng +5 more
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Simple three-level neutral point voltage balance control strategy based on SVPWM
Archives of Electrical Engineering, 2013 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.
B. Gong, Shanmei Cheng, Yi Qin
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A new neutral-point voltage balance modulation strategy for three-level converters
机车电传动Three-level converters have been widely used in high-power rail transit applications due to their advantages. However, they also have an inherent problem of neutral-point voltage imbalance. To address this issue in neutral point clamped (NPC) converters,
ZHANG Hu +3 more
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Izvestiya MGTU MAMI, 2023 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.
A. N. Shishkov, M. M. Dudkin, V. K. Le
semanticscholar +1 more source