燕山大学学报2024，Vol.48Issue(5)：420-427,8.DOI:10.3969/j.issn.1007-791X.2024.05.004
交流接触器耐受不规则暂降的微变等效分析方法
Microvariant equivalent analysis method for AC contactor tolerance to irregular dips
摘要
Abstract
The current method of voltage sag tolerance evaluation for AC contactor is based on rectangular sag,which is easy to overestimate the problem of irregular sag.A tolerance evaluation method of AC contactor adapted to irregular voltage dip waveform is proposed.Based on the action mechanism of AC contactor,the micro-variation relationship of electromagnetic energy,elastic potential energy and contact kinetic energy is deduced,and the micro-variation equivalent model of AC contactor is established.The irregular voltage sag waveform is represented by time-domain signal sequence,and the superposition effect of each step response in the time-domain is iteratively calculated by substituting the contactor micro-variation equivalent model,thus the action behavior of AC contactor under irregular sag is established,and the tolerance evaluation method of AC contactor to irregular voltage sag is obtained.The tolerance of AC contactor under irregular sag is simulated and tested,which can judge the working state of AC contactor and avoid overevaluation of irregular sag effectively.关键词
交流接触器/电压暂降/耐受性评估/不规则暂降/微变等效模型Key words
AC contactor/voltage sag/tolerance evaluation/irregular sag/micro-variable equivalent model分类
信息技术与安全科学引用本文复制引用
孙杰,靳方明,陶冶,贾清泉..交流接触器耐受不规则暂降的微变等效分析方法[J].燕山大学学报,2024,48(5):420-427,8.基金项目
国网黑龙江省电力有限公司科技项目(522413220001) （522413220001）
国家自然科学基金资助项目(51877186) （51877186）
