感应电机非线性反馈补偿控制

针对含有不确定项非线性系统的控制问题，依据Lyapunov理论，提出了具有参数不确定性的一类非线性系统的鲁棒稳定和跟踪控制算法，将系统的数学模型分解为标称子系统和不确定子系统，设计非线性反馈补偿控制律实现预期的控制目标，并将该算法应用到转子磁场定向的感应电机控制中，以解决转子电阻时变且难以测量、不确定性会影响到电机的动态性能问题。通过仿真验证了设计方法的可行性，能够保证即使在转子电阻偏离其标称值时，转子磁链和转子转速具有稳定跟踪性能。

Nonlinear feedback compensation control of induction motor

Aimed to solve the control problems of uncertainty existing in nonlinear system, the robust stabilization and robust tracking control law of non-linear system with parameter uncertainty based on Lyapunov theory is introduced. The mathematical model of this system is divided into the nominal and uncertainty subsystems. Nonlinear feedback compensation to realize the expectative objective is designed. Theory above is applied to control the problem of a rotor field-oriented induction motor, because of the rotor resistance being subjected to variability and hard to be measured, which more or less deteriorate the performance. Simulation example demonstrates the feasibility of the method. The designed scheme guarantees rotor flux and speed to stably track their reference even if the rotor resistance varies from its nominal value.