基于无源性的定子磁场定向感应电机控制器

根据无源性控制的基本思想,并借鉴定子磁场定向控制理论,以定子磁场定向同步坐标系下的定子电流和定子磁通作为系统的状态变量,构建了一种新的电压源型混合控制器,并给出了系统的稳定条件.在理论分析的基础上,证明了在互联与阻尼分配的基于无源性的感应电机控制器设计方法中,将模型表达为欧拉方程的形式是不必要的,且动态解耦条件的数学描述约束过于严格.仿真和实验结果验证了该混合控制器的稳定性、有效性以及良好的静动态性能,同时提出的结论也由此得到了证明.

Passivity-Based Stator-Flux-Oriented Controller for Induction Motor

Following the idea of passivity-based control and the theory of stator-flux-oriented control,and choosing the stator currents and the stator flux linkages(stator-flux frame) as the state variables of the electrical subsystems,a new interconnection and damping-assignment passivity-based controller and its stability region are presented.Based on theoretical analyses,it is concluded that describing induction motor model as an Euler-Lagrange system becomes unnecessary,and the mathematic definition of the decoupled dynamics condition is strict excessively.The effectiveness,stability and the satisfactory performance of the proposed controller,as well as the conclusions proposed are validated by the simulated and experimental results.