摘要
Abstract
The motor is currently used the most extensive electrical transmission device, the three-phase asynchronous motor, using electrical theory, in-depth analyzes its equivalent circuit, the rotor circuit, referred to the stator side, forming a complete unity circuit, analyzes the various equations based on equivalent circuit, motor energy transfer process is embodied by the equation, mapped the working characteristic curve according to the equation. All motor control method is different, for three phase asynchronous cage motor, this paper analyzes the modern most popular drive system, variable frequency drive, analyzes the excellent characteristics and attention of frequency converter application.关键词
电动机/传动/变频器/调速系统Key words
Motor/drive/Frequency converter/Speed regulation system
