动态解耦条件下异步电机的近似逆系统及应用

A NONLINEAR INVERSE-SYSTEM OF ASYNCHRONOUS MOTOR UNDER DYNAMIC-DECOMPOSISION AND ITS APPLICATION

在动态解耦条件下 ,证明了异步电机非线性系统模型的解析性 ,并根据非线性系统理论求出了异步电机近似逆系统 .然后 ,以逆系统为前馈控制器 ,提供基本的控制信号 ,用 PID控制器为反馈控制器 ,产生补偿信号克服不完全逆系统误差和扰动 ,构成了异步电机复合速度控制系统 .

The reversiblily of the asynchronous motor system on the condition of dynamic decompositon is proved, and the approximate inverse system is derived according to nonlinear system theory. Then, with the inverse system as the feedforward controller to supply basic control signal, PID controller as the feedback controller producing compensate signer to overcome the errors of the approximate inverse system and the disturbances, a asynchronous motor compound control system is contructed. The simulation results demonstrate that the speed tracking performance and robust performance of the proposed system are excellent.