数字存储式交流电机软起动装置的研制

Research of Digital Storage AC Motor Soft-starter

介绍了一种以单片机为控制核心的数字存储式电机软起动装置。该装置采用三相晶闸管交流调压的数字移相控制技术和单片机内部ROM存储的脉冲序列实现电机软起动。分析和讨论了数字移相和触发系统的基本工作和设计原理。该装置用于解决交流电动机起动过程中起动电流对电网的冲击问题,从而改善异步电动机的起动特性。

A digital storage motor soft starter based on MCU is introduced.The device can realize the soft-start with three-phase SCR AC voltage regulation digital phase-shifting technique and pulse trains stored in MCU ROM.The basic working and design theory of digital phase-shifting and trigger system are analyzed and discussed.The device can be used to solve the problem of impulse current during the process of motor start to improve the start character of AC motor.