电测与仪表2011，Vol.48Issue(2)：10-14,20,6.
电网谐波和无功电流检测的一种新方法
A New Detection Method for Harmonics and Reactive Currents
王洋 1盛吉2
作者信息
- 1. 江苏省镇江市供电公司配电运检中心,江苏,镇江,212013
- 2. 江苏大学,电气信息工程学院,江苏,镇江,212013
- 折叠
摘要
Abstract
Based on the instantaneous reactive power theory, a novel method for real time harmonic current detection is presented. Adding a PI regulator after low pass filter (LPF) improves harmonic current detection precision. To make the dynamic response speed of detection quicker, the PD negative feedback is proposed, which can compensate the inherent delay of LPF. The excursion error of phase is eliminated by using a technology without the phase - locked - loop (PLL). By simulation of MATLAB, the new method is proved to be able to improve the accuracy of harmonic current detection and meet the request of dynamic compensation.关键词
电流检测/PI调节器/PD环节/锁相环Key words
current detecting/ PI regulator/ PD tache/ PLL分类
信息技术与安全科学引用本文复制引用
王洋,盛吉..电网谐波和无功电流检测的一种新方法[J].电测与仪表,2011,48(2):10-14,20,6.
