电路时序设计引起的缺逆相保护故障案例浅析  

An Analysis of the Case That Lack and Reversed Phase Protection Failure Caused by Circuit Timing Design

作　　者：赖海龙 周天翊 董子祺 

机构地区：[1]珠海格力电器股份有限公司,珠海519070

出　　处：《日用电器》2021年第12期93-96,108,共5页ELECTRICAL APPLIANCES

摘　　要：电路时序设计不单单在高速电路需要关注,在常规的电路模块之间配合时,也同样需要留意。本文通过一单电器设备替换交流电机为直流电机开发过程中出现的误报缺逆相保护故障的案例,对母线电容放电特性引起的供电时序问题进行详细分析,并提出了一种经济性较高的处理方案,供后续设计参考。Circuit timing design needs attention not only in high-speed circuits,but also in the coordination between conventional circuit modules.In this paper,through an example of trigger lack and reversed phase protection failure in electrical equipment was replaced the DC motor with the AC motor in this development process to detail analyse the bus capacitor discharge characteristics caused by the power supply timing problem,and a high economic treatment scheme is proposed for reference in the subsequent design.

关 键 词：相序检测 电容放电 掉电延 

分 类 号：TM33[电气工程—电机]