电工技术学报  2019, Vol. 34 Issue (18): 3854-3864    DOI: 10.19595/j.cnki.1000-6753.tces.L80292
电力电子 |
用于改善电流过零点畸变的Vienna整流器空间矢量调制策略
王涛, 陈昌松, 段善旭, 朱文杰, 刘恬畅
华中科技大学电气与电子工程学院强电磁工程与新技术国家重点实验室 武汉 430074
An Improved Space-Vector Modulation for Vienna Rectifier to Eliminating Current Distortion around Zero-Crossing Point
Wang Tao, Chen Changsong, Duan Shanxu, Zhu Wenjie, Liu Tianchang
State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan 430074 China
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摘要 Vienna整流器在空间矢量调制(SVM)下输入电流过零点会产生畸变,降低电流总谐波畸变率(THD)。本文首先针对采用dq坐标系双环控制下的交错并联Vienna整流器,从SVM等效调制波的角度阐述了Vienna整流器输入电流过零点畸变的原因,并提出一种过零钳位空间调制策略,通过优化输入电流过零点附近扇区内冗余矢量的分配,避免输入电流过零点的畸变,降低了输入电流THD,该策略实施简单,无需额外计算量。其次,分析这种调制策略的适用范围以及对Vienna整流器中点电流、电感电流纹波的影响。结果表明,和传统SVM相比,本文所提方式适用范围广,在抑制电流过零点波形畸变的同时能够减少附近的电流纹波。最后,通过仿真和实验验证了所提调制方式的有效性和理论分析的正确性。
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王涛
陈昌松
段善旭
朱文杰
刘恬畅
关键词 Vienna整流器交错并联三电平空间矢量调制过零畸变    
Abstract:The input currents of Vienna rectifier with Space-Vector Modulation are distorted seriously around zero-crossing point. In this paper, the cause of current distortion around zero-crossing point is analyzed in the two-channel interleaved Vienna Rectifier System with dual-loop control under d-q rotation frame. Then, an improved space vector modulation method for Vienna rectifier is proposed. The proposed method is easy to implement without extra calculation. To avoid input current distortion, the redundant vector is rearranged in particular sectors, where the input current is around zero-crossing point. In addition, the application range of the proposed method is analyzed, and the performance of the method such as mid-point current and current ripple is analyzed compared with the traditional SVM. Finally, the performance of the proposed method is verified by simulation and experiment.
Key wordsVienna rectifier    two-channel interleaved    three-level space-vector modulation    distortion around zero-crossing point   
收稿日期: 2018-06-29      出版日期: 2019-09-26
PACS: TM46  
基金资助:国家重点研发计划(2018YFB0106300)、国家自然科学基金(51477067)和光宝电力电子技术科研基金(PRC20161047)资助项目
通讯作者: 陈昌松 男,1977年生,博士,副教授,研究方向为微电网能量管理、储能充放电控制和可再生能源发电。E-mail: ccsfm@163.com   
作者简介: 王 涛 男,1993年生,博士研究生,研究方向为三电平整流器设计、调制和控制。E-mail: wangtao9312@163.com
引用本文:   
王涛, 陈昌松, 段善旭, 朱文杰, 刘恬畅. 用于改善电流过零点畸变的Vienna整流器空间矢量调制策略[J]. 电工技术学报, 2019, 34(18): 3854-3864. Wang Tao, Chen Changsong, Duan Shanxu, Zhu Wenjie, Liu Tianchang. An Improved Space-Vector Modulation for Vienna Rectifier to Eliminating Current Distortion around Zero-Crossing Point. Transactions of China Electrotechnical Society, 2019, 34(18): 3854-3864.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L80292          https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I18/3854