异步电动机无速度传感器再启动方法的研究  

Research of Speed Sensorless Restart Method for Asynchronous Motor Drive System

作　　者：曾令全[1] 麻鸿儒[1] 刘耀年[1] 

机构地区：[1]东北电力学院,吉林132012

出　　处：《电气自动化》2003年第6期13-15,共3页Electrical Automation

摘　　要：介绍一种无速度传感器异步电动机拖动系统的再启动方法。该方法是基于异步电动机在某角频率下发生谐振的阻抗特性来实现,无须高速运算,能利用低成本的处理器来完成。其方法的有效性已通过对5.5千瓦的异步电动机实验和仿真加以证实。This paper propose a restart method for an asynchronous motor drive system without speed sensor. It is based on the characteristic of the asynchronous motor impedance which is resonant for a frequency corresponding to the angular rotor speed. Since high speed ACR are not required, can be implemented by using a low cost processor. The validity of the method is verified by simulation and experiments, using a standard 5. 5kW asynchronous motor.

关 键 词：异步电动机 无速度传感器 阻抗特性 再启动方法 调速系统 逆变器 

分 类 号：TM343[电气工程—电机]