感应电动机调速系统的新型线性化解耦控制方法

本文提出了一种新型感应电动机调速系统的线性化解耦控制方法，以定子磁链和电磁转矩作为感应电动机数学模型的输出，给出了感应电动机逆系统的动态方程，利用得到的逆系统将调速系统解耦为电磁转矩和定子磁链两个线性子系统。在此基础上，对整个调速系统进行了综合，给出了调速系统的原理框图，实现了电磁转矩和定子磁链的动态解耦控制。仿真实验验证了理论分析的正确性和控制方案的可行性。

A Novel Linearization and Decoupling Control of Induction Scheme Motor Drive

A novel control scheme based on stator flux model of the induction motor(IM) drive system is synthesized and implemented in this paper. The theory of inverse system is briefly introduced. The dynamic equations of the inverse system are developed. Cascading the inverse system with the drive system, the multivariable, nonlinear and strongly coupled system is decoupled into two independent first-order linear subsystems, or torque subsystem and stator flux one, so as to be easy to design the closed-loop linear regulator to control each of the subsystems. The control system is verified with MATLAB simulations. In simulations, the control system is shown to be able to track velocity and stator flux commands.