电力系统自动化Issue(4)：92-97,135,7.DOI:10.7500/AEPS20150526001
电压暂降起始点与相位跳变对交流接触器影响的分析
Influence Analysis of Point-on-wave of Voltage Sag Initiation and Sag Phase Jump on Alternating Current Contactor
摘要
Abstract
Voltage sag is one of the serious problems of power quality,which would cause severe impact on sensitive equipment such as alternating current (AC) contactors.In addition to voltage sag amplitude and duration which will affect the normal operation of AC contactors,the characteristics such as point-on-wave of sag initiation,sag phase jump also have significant impact on the switching of AC contactors.This paper makes a mechanism analysis of the impact of voltage sag on the AC contactor and builds a simulation model of the sag for analyzing the impact of point-on-wave of sag initiation and phase jump on the flux variation and switching of the AC contactor.Then eight AC contactors from mainstream manufacturers are studied and test results consistent with the results of the mechanism analysis are obtained.Finally,the AC contactor”s tolerance curves with different voltage sag characteristics of point-on-wave of sag initiation and the phase jump are plotted,which can provide basic data for the AC contactor to deal with the problem of voltage sag and reduce the corresponding economic loss.关键词
电压暂降/交流接触器/耐受度曲线/暂降起始点/相位跳变Key words
voltage sag/alternating current contactor/tolerance curves/point-on-wave of sag initiation/phase jump引用本文复制引用
徐永海,洪旺松,兰巧倩..电压暂降起始点与相位跳变对交流接触器影响的分析[J].电力系统自动化,2016,(4):92-97,135,7.基金项目
国家自然科学基金资助项目(51277069)。This work is supported by National Natural Science Foundation of China(No.51277069) （51277069）
