并联型APF补偿电压源型非线性负载时谐波电流放大效应的研究.pdf

第 31 卷 第 27 期 中 国 电 机 工 程 学 报 Vol.31 No.27 Sep.25, 2011 2011 年 9 月 25 日 Proceedings of the CSEE ©2011 Chin.Soc.for Elec.Eng. 21 0258-8013 (2011) 27-0021-08 TM 85 A 470 40 文章编号： 中图分类号： 文献标志码： 学科分类号： ⋅ 并联型 APF 补偿电压源型非线性负载时 谐波电流放大效应的研究 刘聪，戴珂，张树全，康勇 (华中科技大学电气与电子工程学院，湖北省 武汉市 430074) Harmonic Current Amplification Effect of Voltage-source Type Nonlinear Load Under Compensation by Shunt APF LIU Cong, DAI Ke, ZHANG Shuquan, KANG Yong (College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China) ABSTRACT: To extend the application area of shunt active 0 引言 power filters (APF), the compensation characteristic of shunt 二极管不控整流变换器以其控制简单、成本低 APF for voltage-source type nonlinear load were studied by adopting the method of circuit equivalence. It focuses on the 等优点，在开关电源、交流电机变频调速、不间断 analysis of the load harmonic current amplification effect, and 电源等各种设备中得到了广泛的应用。但是这类变 the reasons of this effect are explained theoretically and 换器会给电网注入大量的谐波电流，正日益成为电 quantitatively. Based on these analyses, the solutions to 网中一类最主要的谐波源。根据不控整流桥直流侧 diminish the harmonic current amplification effect were 连接电感还是电容，可以将其分别归为电流源型和 proposed from circuit topology and APF control aspects, which 电压源型非线性负载两类[1] 。有源电力滤波器 ensure the good compensation performance of voltage-source type nonlinear loads by shunt APFs. Simulation and (active power filter，APF)是补偿非线性负载谐波的 experimental results validate the correctness of the theoretical 主要