电测与仪表2016，Vol.53Issue(21)：48-53,6.
复杂电网下无功及谐波电流检测算法研究
Algorithm research of reactive and harmonic current detection under the complex power grid
邓加南 1肖慧荣 2刘建魁 1张君2
作者信息
- 1. 南昌航空大学无损检测技术教育部重点实验室，南昌330063
- 2. 江西省光电检测技术工程实验室，南昌330063
- 折叠
摘要
Abstract
The detection result of the traditional current detection method based on the instantaneous reactive power theory will produce large error when the power grid voltage is under the conditions of asymmetry , harmonic distortion and frequency discontinuity .According to the I p-I q current detection theory , a current detecting method of the positive and negative sequence decoupling network based on the complex filtering was proposed .The operation principle was analyzed , the mathematical models were built , and the current detecting network structure was designed .Because the proposed PLL used the positive and negative sequence decoupling network based on the complex filtering , this method can track the positive phase sequence of the fundamental wave under the complex power grid conditions .Meanwhile , because the current filtering also used the positive and negative sequence decoupling network that based on the com -plex filtering , the current after filtering can separate the positive and negative sequence more accurately .Simulation is done to validate the current detection network under the conditions that the power grid voltage is asymmetry , harmonic distortion , and frequency discontinuity .The results show the feasibility and effectiveness of this method .关键词
复杂电网/无功电流/谐波电流/复系数滤波正负序解耦网络Key words
complex power grid/reactive current/harmonic current/the positive and negative sequence decoupling network based on the complex filtering分类
信息技术与安全科学引用本文复制引用
邓加南,肖慧荣,刘建魁,张君..复杂电网下无功及谐波电流检测算法研究[J].电测与仪表,2016,53(21):48-53,6.
