应用串联校正解决有源滤波器稳定性问题  

The Stability Problem of Shunt Active Power Filter Analysis Based on Series Correction

作　　者：任磊 赵炳松 REN Lei;ZHAO Bing-song(Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学电气电子工程学院,天津300384 [2]深圳中嘉智联能源科技有限公司,广东深圳518000

出　　处：《电力电子技术》2019年第5期82-85,共4页Power Electronics

摘　　要：分析了系统电抗和负荷电抗对基于检测系统电流的并联型有源滤波器(APF)控制算法稳定性的影响,并给出了基于串联校正的解决方案。对于电压源型非线性负载,由于系统电抗和负荷电抗的影响,在使用并联型APF进行谐波补偿时不但会出现谐波放大现象,而且影响并联型APF电流跟踪控制算法的稳定性。建立了并联型APF,系统电抗和负荷电抗的详细电路模型,并通过闭环传递函数控制模型分析了电流跟踪控制算法的稳定性。使用比例谐振(PR)控制验证了该数学模型的合理性,并提出了串联校正解决方案,实验结果验证了该模型和解决方案的正确性。A detail circuit model based on voltage source type harmonic source is built for shunt active power filter(APF)considering the line impedance,and the stability problem caused by harmonic amplification based on close loop transfer function is analyzed according to this circuit model.In order to verify this stability problem,proportional resonance(PR)controller based on series correction scheme is proposed to solve this stability problem caused by harmonic amplification.The experimental results confirm the validity of the circuit model,and prove that harmonic amplification will produce stability problem for voltage source type harmonic source.

关 键 词：有源滤波器 电压源型非线性负载 谐波放大 

分 类 号：TM70.8[电气工程—电力系统及自动化]