改进型自适应陷波谐波检测法的研究  

Improved and Adaptive Harmonic Detecting Method

作　　者：戴春芳[1] 万健如[1] 黄芳[2] 张磊 

机构地区：[1]天津大学 [2]天津大港油田测井公司,天津300280 [3]天津大港中成公司,天津300280

出　　处：《自动化与仪表》2006年第5期1-5,共5页Automation & Instrumentation

基　　金：天津市自然科学基金资助项目(05YFJMJC11500);高等学校"985工程"项目(105232200400007)

摘　　要：为提高电能质量,广泛采用有源滤波器来进行谐波补偿和抑制,补偿的效果取决于谐波检测的精度和动态响应特性,谐波检测性能的满足来源于算法。基于最小方差理论和平均原理对自适应滤波算法进行分析,提出了改进型自适应滤波算法,克服了传统结构中快速动态响应不足的缺陷,使该算法能够在电网电压和频率变化时,准确地完成谐波的同步检测,从仿真结果中验证了动态响应和准确度。该结构具有设计简单、实时性强等特点,因此具有较强的实际应用价值。APF is widely used to improve the power quality by the compensation of harmonics,the efficiency of APF is determined by precision of detection and its dynamic correspondence,and the algorithm of detection is important. This paper proposed a improved adaptive algorithm based on Minimum square-difference theory and averaging theorem.There is a fast dynamic response speed that could precisely complete real-time detection with the method in the condition of voltage and frequency variation. Simulation result has verified its precision and superiority. The simple structure and real-time response proved it well to apply.

关 键 词：有源滤波器 自适应陷波器 平均原理 谐波检测 

分 类 号：TM761[电气工程—电力系统及自动化]