一种新的有源滤波器参考信号提取方法  

A new detecting method for reference signal of APF

作　　者：吕干云[1] 程浩忠[1] 董立新[1] 丁屹峰[1] 

机构地区：[1]上海交通大学电气工程系,上海200030

出　　处：《继电器》2004年第16期5-7,31,共4页Relay

基　　金：全国高等学校优秀青年教师教学科研奖励计划资助项目(ZDXM03006)

摘　　要：有源滤波器是改善电力系统电能质量的一种有效工具,参考信号的提取对其补偿性能有重要影响。提出了一种新的有源滤波器参考信号提取方法,采用交叉迭代数值逼近方法,提取单相畸变信号的参考信号,获得三个基本参数的估计:基波幅值、角频率和初相位;在此基础上,按照补偿功率最小的最优原则,推导出三相对称参考信号的表达式。算例结果显示了方法的有效性和准确性。A new detecting method for reference signal of active power filter (APF) is presented in this paper, which adopts the crossing iteration numerical approaching method to detect out the single-phase reference signal from a distorted signal, and gets three basic parameters of the reference signal, such as fundamental wave amplitude, angular frequency, and initial phase. According to optimal principle, the formula of three-phase reference signal is deduced. The results of examples show that the new method is efficient and accurate.This subject is supported by the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE, P.R.C.(No.ZDXM03006).

关 键 词：有源滤波器 参考信号提取方法 电力系统 电能质量 无功功率补偿 

分 类 号：TN713[电子电信—电路与系统]