转差闭环调速系统动态设计方法研究

A Study of Dynamic Design Method for Slip Closed-Loop Adjustable Speed System

转差频率控制是异步电动机变频调速系统转矩控制的重要方法．本文从讨论转差频率控制原理及转差闭环调速系统的控制结构出发，研究了异步电动机数学模型的工程简化及电压型变频调速系统转差闭环控制的动态设计问题，提出了类似直流调速系统动态设计的工程设计方法。

Slip frequency control is an important method that controls torque of variable-frequency adjustment speed systems of induction motors.In this paper the simplification of mathematic model of induction motors and dynamic design of slip closed-loop adjustment speed systems are studied on the basis of discussing principle of slip frequency control and controlling structure of speed closed-loop systems.A method of engineering design which bears analogy with design of DC variable-speed drive systems isgiven. Simulation results show the effectiveness of the methed