Results 1 to 10 of about 31,090 (116)

Modified Predictive Control Method of Three-Level Simplified Neutral Point Clamped Inverter for Common-Mode Voltage Reduction and Neutral-Point Voltage Balance

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

Research on the Neutral-Point Voltage Balance for NPC Three-Level Inverters under Non-Ideal Grid Conditions

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, Ji Dong Wang, Wen Bin Hu, Zhao Feng Wu   +3 more
doaj   +3 more sources

Smooth Switching Technique for Voltage Balance Management Based on Three-Level Neutral Point Clamped Cascaded Rectifier

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, Xiaoqiong He, Pengcheng Han, Aiping Guo, Zeliang Shu, Shibin Gao   +5 more
doaj   +3 more sources

Influence of Digital Delay on the Zero-Sequence Voltage Injection Neutral-Point Potential Balance Algorithm for Three-Level NPC Inverters and Its Compensation Method

IEEE Access, 2019
Three-level neutral-point-clamped (NPC) inverters need to ensure the balance of the neutral-point (NP) potential during operation. The zero-sequence voltage injection balance algorithms based on the carrier-based pulse width modulation (CBPWM) have been ...
Xingda Zhou, Shuai Lu
doaj   +3 more sources

Compensation-Voltage-Injection-Based Neutral-Point Voltage Fluctuation Suppression Method for NPC Converters

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, Chunyang Gong, Jun Bao, Lihua Zhu, Zhixin Wang   +4 more
doaj   +1 more source

Virtual Vector-Based FCS-MPC for NPC Three-Level Grid-Tied Inverter Without Weighting Factor of Neutral-Point Voltage Balancing

IEEE Access, 2022
The neutral-point clamped (NPC) inverter is widely used in energy conversion, but the unbalance of neutral-point voltage (NPV) will lead to imprecise control and the decline of power quality.
Nan Jin, Dongren Dai, Huan Xie, Jie Wu, Leilei Guo   +4 more
doaj   +1 more source

An Advanced Modulation Technique Featuring Neutral Point Voltage Ripple Suppression of Three-Level Converters in High-Speed Drives

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, Tao Yang, Zhen Huang, Seang Shen Yeoh, Serhiy Bozhko, Patrick Wheeler   +5 more
doaj   +1 more source

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
doaj   +1 more source

Performance Comparison of Five-Level Active Neutral Point Converter Based on Phase Disposition-PWM and Alternate Phase Opposition Disposition-PWM [PDF]

ITM Web of Conferences, 2022
The work in this paper presents the performance analysis of the reduced component count converter which is the 5-Level Active Neutral Point Converter (5LANPC).
Ameer Noory Zainab, Hassan Raaed. F.
doaj   +1 more source

Model Predictive Control Method With NP Voltage Balance by Offset Voltage Injection for Three-Phase Three-Level NPC Inverter

IEEE Access, 2020
This paper proposes a predictive control method with offset voltage injection for achieving a neutral point (NP) voltage balance of three-phase three-level neutral point clamped (NPC) inverter, without employing a weighting factor. In order to ensure the
Eun-Su Jun, Minh Hoang Nguyen, Sang-Shin Kwak   +2 more
doaj   +1 more source