基于瞬时无功功率理论的谐波检测改进算法分析  

Analysis of Improved Algorithm for Harmonic Detection Based on Instantaneous Reactive Power Theory

作　　者：朱日升 ZHU Risheng(State Grid Zhejiang Electric Power Co.,Ltd.,Lishui Power Supply Company,Zhejiang 323000,China)

机构地区：[1]国网浙江省电力有限公司丽水供电公司,浙江323000

出　　处：《集成电路应用》2023年第10期11-13,共3页Application of IC

摘　　要：阐述模拟滤波器的对比特性,基于Fryze功率定义检测方法、小波变换的谐波检测方法,以及瞬时无功功率理论,推导并联型有源电力滤波器的谐波电流检测算法。探讨一种改进的瞬时无功功率理论,谐波和无功电流检测方法,从而解决电网电压不对称引起的正余弦信号的相位偏差影响,最终针对检测问题,提出改进算法。This paper describes the comparative characteristics of analog filters,and derives a harmonic current detection algorithm for parallel active power filters based on Fryze power definition detection method,wavelet transform harmonic detection method,and instantaneous reactive power theory.Explore an improved instantaneous reactive power theory,harmonic and reactive current detection method,in order to solve the phase deviation impact of sine and cosine signals caused by voltage asymmetry in the power grid.Finally,It proposes an improved algorithm to address the detection problem.

关 键 词：电路设计 谐波检测 瞬时无功功率 相位偏差 

分 类 号：TN402[电子电信—微电子学与固体电子学] TN713.8