Common-mode voltage suppression by PWM for Z-source inverter

被引:0
作者
机构
[1] Institute of Electrical Engineering, Chinese Academy of Sciences
[2] Key Laboratory of Power Electronics and Electric Drive, Chinese Academy of Sciences
[3] Beijing Engineering Lab of Electrical Drive System and Power Electronic Device Packaging Technology
来源
Zhang, J. (ejzhang@mail.iee.ac.cn) | 1600年 / Electric Power Automation Equipment Press卷 / 33期
关键词
Common-mode voltage; Electric inverters; Pulse width modulation; Voltage control; Z-source inverter;
D O I
10.3969/j.issn.1006-6047.2013.06.015
中图分类号
学科分类号
摘要
A method of common-mode voltage suppression based on NSPWM(Near-State PWM) is proposed for two-level Z-source inverter, which compares two modulation signals with one carrier signal to generate PWM signals for controlling respectively the upper and lower switching devices of each leg. The way to generate two modulation waves is described and its adaptability is investigated, which shows that the proposed method has no modulation index limitation. Simulative and experimental results demonstrate that, with the proposed method, the output common-mode voltage of Z-source inverter is limited to one third of the input peak voltage and the output voltage has no low-order harmonic distortion.
引用
收藏
页码:81 / 86
页数:5
相关论文
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