电力系统保护与控制2016，Vol.44Issue(14)：55-60,6.DOI:10.7667/PSPC151429
并联型APF补偿容性非线性负载不稳定机理研究
Instability mechanism study of shunt active filter in compensation of capacitive nonlinearity load
摘要
Abstract
Instability can occur when a parallel active power filter whose reference current is deduced based on load current detection is applied to compensate capacitive nonlinearity load. The root cause of instability is the mismatch and the mutual influence of input and output impedance in cascade system. The mathematical model of parallel active power filter which is applied to compensate capacitive nonlinearity load is primarily built for the problem in this paper, and the impedance characteristic of input and output part in cascade system is analyzed based on the Middlebrook impedance analysis theory, the root instability cause is discussed by the stability criterion in cascade system, finally, the simulation and experimental results validate the correctness of the theoretical analysis.关键词
并联有源电力滤波器/谐波补偿/容性非线性负载/不稳定机理Key words
shunt active power filter (APF)/harmonic compensation/capacitive nonlinear load/instability mechanism引用本文复制引用
李鹏,蒋晓明,黄俊华,张涛..并联型APF补偿容性非线性负载不稳定机理研究[J].电力系统保护与控制,2016,44(14):55-60,6.基金项目
广州市天河区科技计划项目(201305YG031) （201305YG031）
