CMV reduction for five-level ANPC converter by PS-PWM strategy

The Journal of Engineering

Feipeng Liu¹  Lie Xu² 

[1] State Key Laboratory of Power System, Department of Electrical Engineering , Tsinghua University , Beijing , People's Republic of China

关键词: zero-sequence voltage;    PS-PWM strategy;    NP voltage;    general CMV reduction method;    attractive topologies;    FC voltages balance;    five-level active neutral point;    five-level ANPC converter;    common-mode voltage reduction strategy;    basic PS-PWM method;    motor drive;    pulse-width modulation;    industry applications;   

DOI  :  10.1049/joe.2018.0020

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

Five-level active neutral point clamped (ANPC) converter has become one of the most attractive topologies in industry applications, especially in the field of the motor drive. A novel common-mode voltage (CMV) reduction strategy for five-level ANPC is presented, which is based on the phase-shifted pulse-width modulation (PS-PWM). A basic PS-PWM method is presented, which can realise the NP voltage and the flying capacitor (FC) voltages balance. Moreover, a general CMV reduction method is summarised. The proposed CMV reduction strategy can minimise the CMV by injecting zero-sequence voltage to the modulation wave and it does not affect the ability of NP voltage and FC voltages balance. The validity of the proposed CMV reduction method based on PS-PWM strategy is verified by simulation.

【 授权许可】

CC BY