一种限流型异步电动机软起动装置的设计与实现  

Design and Implement of Limited Current Microcontroller in AC Motor Soft-starter

作　　者：程雪[1] 侯思祖[1] 王彬[1] 

机构地区：[1]华北电力大学,071003

出　　处：《电机技术》2006年第4期8-10,13,共4页Electrical Machinery Technology

摘　　要：针对交流感应电动机在全压起动的情况下存在的问题,介绍了一种新型的电动机起动装置。该装置以AT89C52单片机为控制核心,根据电动机T型等效电路算法,通过控制集成电路TH103主回路上三对反并联晶闸管的导通角度,使起动电流限定在2倍额定电流下,实现电动机的限流起动。When an electric motor starts under full voltage there is a great deal of problems. A new type of electric motor start will be introduced in this paper. The simple chip of AT89C52 becomes the core of the equipment. Based on calculation method of the electric motor T equivalent circuit and by means of controlling the integrated circuit of three pairs of opposite parallel connection TRIAC, which are on the master return circuit, the start current is limited stably under the double assessable current to realize the limited current start-up of electric motor.

关 键 词：感应电动机 软起动 限流起动 移相控制 

分 类 号：TM343[电气工程—电机]