电力系统自动化Issue(23)：145-151,7.DOI:10.7500/AEPS20150312006
基于门限电压法的谐波源定位
Harmonic Source Identification Based on Threshold Voltage Method
摘要
Abstract
A new method based on the threshold voltage is proposed to determine the main harmonic disturbance sources on the point of common coupling (PCC) in distribution systems.The threshold voltage can be calculated based on the system equivalent harmonic current sources and the equivalent impedances downstream and upstream of the PCC.The threshold voltage corresponds to the critical voltage value when the system and customer side issued the same amount of harmonic currents.The main harmonic sources on the PCC can be determined by comparing the measured PCC voltage and the calculated threshold voltage.The system parameter estimation method adopted makes it possible to avoid the bad impact of background harmonic variation,guaranteeing the good robustness of the method proposed,whose validity is verified by simulation and actual field data analysis.关键词
电能质量/谐波源定位/诺顿等值电路/门限电压Key words
power quality/harmonic source identification/Norton equivalent circuit/threshold voltage引用本文复制引用
孙媛媛,李培鑫,尹志明..基于门限电压法的谐波源定位[J].电力系统自动化,2015,(23):145-151,7.基金项目
国家自然科学基金资助项目(51107074) （51107074）
山东省优秀中青年科学家科研奖励基金资助项目(BS2013NJ005) （BS2013NJ005）
国家留学基金委资助项目(20133018)。 （20133018）
