中国电机工程学报2017，Vol.37Issue(22)：6730-6739,10.DOI:10.13334/j.0258-8013.pcsee.162430
基于触头电弧侵蚀的交流接触器电寿命分布特征研究
Research on Distributional Characteristic of Electrical Endurance of AC Contactor Based on Arc Erosion
摘要
Abstract
Electrical endurance is an important performance indicator of AC contactor,and it is influenced by various factors,among which the most important one is arc erosion caused by the arc current between contacts when breaking the load.Firstly,arc current was taken as a decisive factor of contact erosion,and the mathematical model of contact erosion was built based on arc current phase angle.Secondly,according to the damage accumulation effect,the mathematical model of electrical endurance for AC contactor was established,and the relationship between electrical endurance distribution and loads under different connection modes was analyzed.Finally,the simulation model of electrical endurance for AC contactor was established using Monte-Carlo method,and the distribution characteristics of electrical endurance under different working conditions were obtained.The simulation results obey Weibull distribution,which is consistent with the generally accepted conclusion about wearout failure products in reliability field.The mathematical model proposed in this paper can well explain the dispersion of electrical endurance for AC contactor,and it can provide valuable reference for the reliability improvement of AC contactor.关键词
交流接触器/电寿命/电弧电流/蒙特-卡罗法/电弧侵蚀Key words
AC contactor/electrical endurance/arc current/Monte-Carlo method/arc erosion分类
信息技术与安全科学引用本文复制引用
郑淑梅,李奎,刘政君,黄少坡,武一,王丽丽..基于触头电弧侵蚀的交流接触器电寿命分布特征研究[J].中国电机工程学报,2017,37(22):6730-6739,10.基金项目
国家自然科学基金项目(51377043) （51377043）
国家重点基础研究发展计划项目(973项目)(2015CB251002) （973项目）
河北省自然科学基金(E2015202109) （E2015202109）
河北省高等学校创新团队领军人才培育计划(LJRC003).Project Supported by National Natural Science Foundation of China (51377043) （LJRC003）
The National Basic Research Program of China (973 Program)(2015CB251002) （973 Program）
Natural Science Foundation of Hebei Province of China (E2015202109) （E2015202109）
Leader Talent Training Program of Hebei Province Higher School Innovation Team,China (LJRC003). （LJRC003）
