改进型LCL滤波器拓扑在有源滤波器中的应用

作者：赵文强，陈国柱 日期：2008-12-26/span> 浏览：3845 查看PDF文档

改进型LCL滤波器拓扑在有源滤波器中的应用

赵文强，陈国柱
（浙江大学 电气工程学院，浙江 杭州 310027）

摘要：为了使并联有源滤波器谐波电流补偿性能、开关纹波衰减率、系统稳定性和功率损耗等方面性能得到系统的折中和优化，提出了一种改进型LCL滤波器拓扑，该结构充分利用了LCL滤波器的频率特性，在阻尼电阻两端引入开关纹波谐振分流支路，同时在阻尼电阻上串联一小电感，有效的减少了阻尼电阻的损耗而不改变系统的静态和动态性能。仿真结果证明了所提拓扑的正确性和可行性。
关键词：有源电力滤波器；LCL滤波器；无源阻尼
中图分类号：TM464文献标识码：A文章编号：1001-4551(2008)12-0039-04

Application of improved LCL filter topology in active power filter
ZHAO Wen-qiang, CHEN Guo-zhu
（College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China）
Abstract: In order to optimize performances  of shunt active power filter of harmonic compensation, attenuation ratio for switching ripple, stability and power losses, an improved LCL filter topology was presented based on the analysis of the frequency characteristics of the LCL filter, in which a switching-ripple shunt branch and a series-inductor were adopted to the damping resistor to reduce the power losses dramatically. With the improvement, the active power filter inherits both static and dynamic excellent performances. Simulation results validate the correctness and feasibility of the proposed topology.
Key words: active power filter(APF); LCL-filter; passive dampingactive power filter(APF); LCLfilter; passive damping; voltage source converter(VSC)
参考文献(References):
［1］AKAGI H. New trends in active filters for power conditioning［J］. IEEE Transactions on Industry Applications,1996,32(6):1312-1322.
［2］王兆安,杨君.谐波抑制和无功功率补偿［M］.北京:机械工业出版社,1998.
［3］陈国柱,吕征宇，钱照明．有源电力滤波器的一般原理及应用［J］.中国电机工程学报，2000，20(9):17-21.
［4］LISERRE M, BLAABJERG F. Design and control of an LCLfilterbased threephase active rectifier［J］. IEEE Transactions on Industry Applications,2005,41(5):1281-1291.
［5］钱志俊,仇志凌,陈国柱.有源电能质量控制器的LCL滤波器设计与研究［J］.电力电子技术，2007，41（3）：6－8.
［6］韩龙飞，陈国柱.一种新型低无功倒送的混合有源电力滤波器［J］.机电工程，2007，24（10）：39-42.
［7］WANG T C Y, YE Zhi-hong, SINHA G, et al. Output Filter Design for a Grid-interconnected ThreePhase Inverter[C]//PESC 2003, IEEE 34th Annual,2003:779-784.