The conventional linear control methods are difficult to meet the control requirements of high-performance speed regulation of asynchronous motor due to the nonlinear and multi-variable problems of induction motor. A passive-based control method of induction motor with the full-order state observer is proposed with the Euler–Lagrange equation of motion of the induction motor. Based on the relationship between passivity and stability of induction motor, the state feedback is used for torque and speed tracking. The full-order state observer is adopted with rotor current and rotor flux as state variables, and the adaptive speed controller is designed to realize the passive-based control. The experimental results show that the errors between the estimated value based on the proposed full-order observer and the actual value of rotor current, speed and flux are small; the speed with the proposed adaptive control can reach the expected value quickly. The proposed control method can effectively meet the high-performance requirements of induction motor.

由于感应电动机的非线性和多变量问题，传统的线性控制方法难以满足异步电动机高性能调速的控制要求。利用感应电动机运动的欧拉-拉格朗日方程，提出了一种具有全阶状态观测器的异步电动机基于被动的控制方法。根据感应电动机的无源性和稳定性之间的关系，将状态反馈用于转矩和速度跟踪。采用转子电流和转子磁通作为状态变量的全序状态观测器，设计了自适应速度控制器，实现了基于被动的控制。实验结果表明，基于建议的全阶观测器的估计值与转子电流的实际值之间存在误差，速度和通量小；所提出的自适应控制的速度可以很快达到期望值。所提出的控制方法可以有效地满足感应电动机的高性能要求。