南京师范大学学报（工程技术版）Issue(2)：24-29,6.
一种改进的单相电路ip-iq谐波检测方法
An Improved i p-i q Detecting Method for Harmonics in Single-Phase Circuits
居茜 1鞠勇1
作者信息
- 1. 南京师范大学电气与自动化工程学院，江苏 南京210042
- 折叠
摘要
Abstract
In view of the features of harmonics in single-phase circuits,the study makes an analysis on harmonics ip-iq detection for single-phase circuits in the way of mathematics based on the instantaneous reactive power theory. Considering accuracy and real-time of the harmonics detection, a much more suitable method for harmonics in single-phase circuits is proposed. In order to improve the performance of the whole detection system, a feedback process is added to the system. With the application of the elliptic low-pass filter featuring high decay rate in transition zone and a good frequency characteristic instead of traditional Butterworth low pass filter, the method can reduce the influence of time delay of low-pass filter on the detection accuracy. The modeling and simulation of MATLAB/Simulink proves that the method improves the accuracy and speed of dynamic response.关键词
单相电路/谐波检测/ip-iq 算法/反馈/椭圆低通滤波器Key words
single-phase circuits/detecting method for harmonics/ip-iq method/feedback/low-pass elliptic filter分类
信息技术与安全科学引用本文复制引用
居茜,鞠勇..一种改进的单相电路ip-iq谐波检测方法[J].南京师范大学学报（工程技术版）,2014,(2):24-29,6.
