Abstract This paper presents a Linear Parameter-Varying (LPV) observer for an Induction Machine (IM) under sinusoidal DC-supply disturbances. The observer estimates not only the IM state variables, but also the disturbances considered as a part of the states. As the extended IM model depends on the stator angular speed ω s and the rotor angular speed ω r , the proposed observer is designed by convex optimization to induce a convergence of the observer for a predetermined range of ω s and ω r . The estimated disturbances can be used to compensate for the real disturbances. The simulation results show the effectiveness of the observer, and experimental results on a laboratory test-bench have been obtained. The proposed method can be extended to other type of motor drives.

中文翻译：

---

使用凸优化的 LPV 观测器估计感应电机驱动的逆变器电压扰动

摘要 本文介绍了在正弦直流电源干扰下感应电机 (IM) 的线性参数变化 (LPV) 观测器。观察者不仅估计 IM 状态变量，还估计作为状态一部分的干扰。由于扩展的 IM 模型取决于定子角速度 ω s 和转子角速度 ω r ，所提出的观测器是通过凸优化设计的，以在 ω s 和 ω r 的预定范围内诱导观测器的收敛。估计的扰动可用于补偿真实的扰动。仿真结果表明了观测器的有效性，并在实验室测试台上获得了实验结果。所提出的方法可以扩展到其他类型的电机驱动器。