交流异步电动机的软起动  

Soft start of AC asynchronous motor

作　　者：武军[1] 

机构地区：[1]西安铁路职业技术学院,陕西西安710014

出　　处：《电子设计工程》2009年第2期64-66,共3页Electronic Design Engineering

摘　　要：由于传统交流异步电动机的起动方法有两次冲击电流,可对负载产生冲击转矩,采用晶闸管技术实现交流异步电动机软起动,介绍了该技术的工作原理。针对重载起动,传统软起动的局限性,提出采用交-交变频起动和晶闸管调压软起动相结合的方法,并通过试验测试该软起动方法能够解决重载起动时的电压波动影响,具有实际应用价值。Because of the traditional AC asynchronous motor＇s starting technique having two surge current that had an impact torque to load,the AC asynchronous motor soft start method is realized by using thyristor technology.This technical operation principle is introduced in detail.Aiming at the heavy load starts and the original soft start limitation,the new soft start is pro- posed with hands over-hands over the frequency conversion starting and the thyristor accent presses.Through the experimental test,this new soft start can solve voltage hunting influence completely,and has the practical application value.

关 键 词：软起动 交流电机 限流起动 重载 电动机 

分 类 号：TM346[电气工程—电机]