采用PWM的车用永磁发电机控制电路  

A Control Circuit of Vehicles' Permanent Magnetic Generators Based on PWM

作　　者：李永斌[1] 王建民[1] 黄明[2] 江建中[3] 

机构地区：[1]山东大学,山东济南250061 [2]山东济南发电设备厂,山东济南250014 [3]上海大学,上海200072

出　　处：《微特电机》2005年第3期24-26,共3页Small & Special Electrical Machines

摘　　要：文章介绍了一种车用永磁发电机的晶闸管整流稳压电路。主电路采用晶闸管三相半控桥式整流电路,晶闸管的门极信号采用PWM控制方式,使整流桥周期性的通断,通过改变一个PWM周期中整流桥的通断时间 (即占空比)实现稳压输出。A thyristor rectifier with stabilized output voltage is introduced in this paper,which is designed for permanent magnetic generator used in automobile. Its power circuit consists of a three-phase semi-controlled full-bridge rectifier. The gates of the thyristors are controlled by PWM mode. Then the full-bridge rectifier is conducted periodically. The on-time of the rectifier in a PWM cycle (i.e. the duty ratio) is regulated in order to stabilize the output voltage.

关 键 词：PWM 整流电路 脉宽调制 稳压电路 

分 类 号：TM313[电气工程—电机]