一种降低VIENNA整流器电流过零点畸变的调制方法  

Modulation Method for Reducing Current Zero-CrossingDistortion of VIENNA Rectifier

作　　者：张庆岩 王沛东 黄新梅 王珺璨 桂在毅 张伟[1] ZHANG Qingyan;WANG Peidong;HUANG Xinmei;WANG Juncan;GUI Zaiyi;ZHANG Wei(School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学电气工程和自动化学院,安徽合肥230009

出　　处：《电器与能效管理技术》2021年第2期81-87,共7页Electrical & Energy Management Technology

摘　　要：为解决VIENNA整流器固有的在电流过零点处可能出现畸变的问题,提出了一种最大程度降低电流过零点畸变的调制方法。首先,根据VIENNA整流器的控制方法,分析了电流过零点畸变的原理。然后,提出量化整流器实际输出电压偏差量的函数,实现了电流过零点处实际输出电压的最小畸变。最后,通过实验验证了所提出调制方法的可行性和优越性。The inherent problem of the VIENNA rectifier is that distortion may occur at the current zero crossing point.To solve this problem,a modulation method that can minimize the current zero-crossing distortion is proposed.Firstly,according to the control method of the VIENNA rectifier,the principle of current zero-crossing distortion is analyzed.Then,a function to quantify the actual output voltage deviation of the rectifier is proposed.And the minimum distortion of the actual output voltage at the current zero-crossing point is achieved.Finally,the feasibility and superiority of the modulation method proposed in this paper are verified by experiments.

关 键 词：VIENNA整流器 电流过零点畸变 单位功率因数 偏差量 

分 类 号：TM461[电气工程—电器]