电力系统及其自动化学报2016，Vol.28Issue(8)：25-31,7.DOI:10.3969/j.issn.1003-8930.2016.08.005
EEMD在电力谐波检测中的应用
Application of EEMD to Power Harmonic Detection
摘要
Abstract
In order to overcome the mode mixing deficiency in the harmonic detection method based on empirical mode decomposition(EMD),a new harmonic detection method is proposed based on Hilbert-Huang transform(HHT)by us-ing ensemble empirical mode decomposition(EEMD). First,the load current containing harmonic is decomposed by EEMD,then the intrinsic mode function is obtained,and HHT is performed to find amplitude,phase,instantaneous frequency and other information of the fundamental wave and every harmonic. The EEMD method has strong adaptive ability,high accuracy and good real-time performance when the load mutates. The simulation results show that the EEMD method can avoid mode mixing in the decomposition process,which overcomes the disadvantage of EMD. At the same time,test result by harmonic detection platform based on data acquisition card further proves the feasibility of the proposed method .关键词
谐波/希尔伯特-黄变换/模态混叠/经验模态分解/总体平均经验模态分解/采集卡Key words
harmonic/Hibert-Huang transform(HHT)/mode mixing/empirical mode decomposition(EMD)/ensem-ble empirical mode decomposition(EEMD)/data acquisition card分类
信息技术与安全科学引用本文复制引用
孙曙光,王秋萌,闫欢,林雪松,杜太行..EEMD在电力谐波检测中的应用[J].电力系统及其自动化学报,2016,28(8):25-31,7.基金项目
天津市科技支撑重点资助项目(12ZCZDGX014000) （12ZCZDGX014000）
河北省高等学校科学技术研究重点资助项目(ZD2014051) （ZD2014051）
河北工业大学博士科研启动费资助项目 （）
