摘要
基于整流桥非线性负载电流分析,给出三相并联型有源电力滤波器的一种新型谐波检测算法。对新型谐波检测算法的原理进行了阐述并给出其实现方法,阐述了谐波检测滤波器的设计方法,分析和研究对负载突变时谐波检测算法对直流母线电压影响机理,指出负载突变时直流母线电压波动的原因。最后,就全谐波检测算法和新型谐波检测算法进行仿真和实验对比研究,结果验证了新型谐波检测算法的可行性和可靠性。
A novel harmonic current detection method for three-phase three-wire shunt active power filter is proposed in this paper based on the analysis on nonlinear current introduced by rectifier bridge.Then the principle of the harmonic current detection method and its implementation are illustrated,and the design method of harmonic current detection filter is also discussed.The influence of the harmonic detection method on dc bus voltage is analyzed and studied in case of abrupt load change,and the cause of dc bus voltage fluctuation is also given.In the end,harmonic current detection method and the proposed method are studied separately through experiment and simulation,which verify the feasibility and reliability of the novel harmonic current detection method.
出处
《现代电力》
2011年第1期28-35,共8页
Modern Electric Power
关键词
有源电力滤波器
数字化实现
控制策略
谐波检测
功率平衡
active power filter
digital implementation
control strategies
harmonic detection
power balance
