电动机故障分析和综合保护配置  

Motor fault analysis and integrated protection scheme

作　　者：李璇华[1] 黄益庄[1] 唐晓泉[1] 张楠[1] 

机构地区：[1]清华大学电机系,北京100084

出　　处：《继电器》2001年第12期30-33,共4页Relay

摘　　要：通过对异步电动机各类故障特征的详细分析 ,提出了以序分量为基本保护判据、结合热积累和热发散模型 ,构成微机型电动机综合保护的方案。并以电动机热过负荷保护为重点 ,深入探讨了保护方案的具体实现。以此方案设计成的保护装置已经通过动模实验 ,证明了其正确性。Based on the detailed analysis of various fault characteristics of asynchronous motor,this paper brings forward an integrated microcomputer protection scheme which has sequence components as the basic protection criteria,and integrates heat accumulation and diffusion model.In this paper,concrete implementation of the protection scheme is also expounded,especially for the heat overload protection.A protection device based on this scheme has already passed dynamic simulation experiments to prove its validity.

关 键 词：异步电动机 故障分析 综合保护配置 单片机 

分 类 号：TM772[电气工程—电力系统及自动化]