摘要
采用锁相环（ＰＬＬ）技术来控制电动机转速，可实现精确的速度调节．其精度较一般模拟闭环控制系统高．本文针对变频调速开环控制系统的调速精度不高的缺陷，提出一种锁相变频调速系统，来实现高精度的感应电动机速度闭环控制，并对此系统的稳定性、动态特性及精确度等方面的做了研究。
t can achieve high precision regulation of rotating speed to use phaselocked loop technique to control rotating speed of the induction motor. Its precision is higher than the common analogical closed - loop control system. In order to solve the problem of the low precision of the variable frequency variable speed open loop control system. This paper presents a kind of phase - locked variable frequency variable speed system to achieve the high precision's closed -loop control of induction-motor rotating speed and study the stability, dynamic character and precision of this system etc.
出处
《微特电机》
北大核心
1996年第6期29-31,共3页
Small & Special Electrical Machines
关键词
锁相技术
变频调速
应用
电动机
phase - locked technique variable frequency speed control closed -loop control
