山东理工大学学报（自然科学版）Issue(6)：63-67,5.
三相四线制电网谐波电流检测ip-iq法的改进
Improved i p-iq harmonic current detection method applied in three-phase four-wire power system
亓建英 1邹黎 1李超 1赵双东 1陈群1
作者信息
- 1. 山东理工大学电气与电子工程学院，山东淄博255091
- 折叠
摘要
Abstract
To make the application of the harmonic current detection circuit structure to three-phase four-wire power system more simple ,the response faster and the test results more accu-rate ,the harmonic current detection method was improved on the basis of instantaneous reactive power theory .First ,we removed the phase-locked loop PLL ,and set a fixed angular velocity and structure of sine and cosine loop ;Second ,we improved the algorithm by proposing a new algo-rithm to remove the zero-sequence component , making the calculations of current positive se-quence component in three-phase four-wire power system easier ;Finally ,we replaced the low-pass filter LPF with notch filter ,filtered the current of 50 Hz frequence out using its point stop filter characteristics ,then compared with the current with harmonic arrent ,measuring the har-monic current quickly and accurately .The simulation proved that the improved detection method made the circuit simpler ,response faster and the test results more accurate .关键词
谐波检测/ip-iq法/锁相环/陷波滤波器Key words
harmonic current detection/ip-iq method/phase-locked loop/notch filter分类
信息技术与安全科学引用本文复制引用
亓建英,邹黎,李超,赵双东,陈群..三相四线制电网谐波电流检测ip-iq法的改进[J].山东理工大学学报（自然科学版）,2013,(6):63-67,5.
