电器与能效管理技术 ›› 2020, Vol. 594 ›› Issue (9): 57-62.doi: 10.16628/j.cnki.2095-8188.2020.09.011

• 直流变流技术 • 上一篇    下一篇

并联型有源滤波器直流侧电压脉动分析及电压环改进设计

汪宇航, 王海欣, 黄海宏   

  1. 合肥工业大学 电气与自动化工程学院, 安徽 合肥 230009
  • 收稿日期:2020-04-27 出版日期:2020-09-30 发布日期:2020-10-18
  • 作者简介:汪宇航(1997—),男,硕士研究生,研究方向为电工理论与新技术。

Analysis of Voltage Ripple on DC Side of Shunt Active Power Filter and Improvement of Voltage Loop Design

WANG Yuhang, WANG Haixin, HUANG Haihong   

  1. School of Electrical Engineering and Automation,Hefei University of Technology, Hefei 230009, China
  • Received:2020-04-27 Online:2020-09-30 Published:2020-10-18

摘要:

并联型有源滤波器(SAPF)在补偿谐波电流时,直流电容电压会有相应的脉动,会对补偿效果产生不良影响。分别基于三相三线制和三相四线制对电容电压脉动产生的原因进行理论分析,提出在电压环中串入特定频率的陷波器。通过仿真和实验,验证了改进电压环能够降低电容电压脉动带来的影响。

关键词: 并联型有源电力滤波器(SAPF), 直流侧电压脉动分析, 电压环, 陷波器

Abstract:

When the shunt active power filter (SAPF) compensates the harmonic current,the DC capacitor voltage will have corresponding pulsation,which will have a bad effect on the compensation effect.Based on three-phase three wire system and three-phase four wire system,the causes of capacitor voltage ripple are analyzed theoretically,and a notch filter with specific frequency is put into the voltage loop.The simulation and experiment show that the improved voltage loop can reduce the influence of capacitor voltage ripple.

Key words: shunt active power filter (SAPF), DC side voltage fluctuation analysis, voltage ring, notch filter

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