摘要
本文介绍了一种改进的ip-iq谐波检测方法,通过采用基于数字滤波技术的数字抗混叠处理方法,较好地解决了在数字式电网谐波治理系统中由于模拟抗混叠滤波器的非平通带特性所产生的谐波测量误差问题。采用移动平均数字低通滤波器来滤除信号中的交流分量,最后进行了仿真分析。
This paper presents an improved ip-iq method on harmonic and reactive currents detection.The improved ip-iq method can overcome the measurement error that is made by anti-mix analog filter with non-linearity in the pass-band.The moving-average filter can filter the AC of the signal.Simulation results are also given.
出处
《自动化技术与应用》
2010年第3期74-76,共3页
Techniques of Automation and Applications
关键词
谐波检测
ip-iq算法
抗混叠
数字低通滤波器
移动平均滤波器
harmonic detection
ip-iq algorithm
anti-mix analog filter digital
low-pass filter
moving-average filter
