异步电机矢量控制系统的设计与实现

Design and Implementation of an Asynchronous Motor Vector Control System

以矢量控制思想为基础,以异步电机磁通和转矩独立控制为目标,以DSP为控制核心,在磁链开环作用下,建立转矩电流、励磁电流分量为控制内环,以转速为控制外环的双闭环异步电机矢量控制系统,实现异步电机无级调速。经实验证明,该系统跟随性、动态性及调速性有较大提高。

Based on the vector control idea, aiming at independent control over flux and torque of the asynchronous motor, and with DSP as control core, we use the open loop of flux linkage to build up a dual closed-loop asynchronous motor vector control system which has torque current and excitation current component as its inner control loop and speed as its outer control loop, thus realizing steeples speed control of the asynchronous motor. Experiments show that the system＇s following performance, dynamics and speed control are improved quite a lot.