基于滑模观测器的PMSM 有限时间混沌同步控制

针对非均匀气隙永磁同步电机混沌系统同步过程中易受参数摄动和外部扰动的影响，存在鲁棒性差等不 足，以永磁同步电机驱动和响应同步误差动态模型为基础，提出一种基于滑模观测器的有限时间混沌同步控制方法。 利用滑模观测器来实现不确定负载的在线观测，结合滑模理论和有限时间稳定理论，通过主动控制来实现系统非线 性项和线性项的近似解耦，采用有限时间稳定控制来增强系统的鲁棒性和快速响应能力，设计出有限时间同步控制 方法，并在有参数摄动和外部扰动情况下进行了仿真验证。仿真结果验证了该控制方法具有更快的动态响应能力和 鲁棒性，更适合复杂环境下PMSM 混沌系统的同步控制。

Finite-time Chaotic Synchronization Control of Permanent Magnet Synchronous Motor Based on Sliding-mode Observer

In view of the weakness of robustness in the process of synchronization of non-uniform air-gap permanent magnet synchronous motor (PMSM) chaotic system, which is easily affected by parameter perturbation and external disturbance, based on the dynamic model of PMSM drive and response synchronization error, a finite time chaotic synchronization control method based on sliding mode observer is proposed. The sliding mode observer is used to realize the on-line observation of the uncertain load. Combining the sliding mode theory and the finite time stability theory, the approximate decoupling of the nonlinear and linear terms of the system is realized by active control, the finite time stability control is used to enhance the robustness and fast response of the system, and the finite time synchronization control method is designed, and simulation verification is carried out under the condition of parameter perturbation and external disturbance. Results show that the proposed control method has faster dynamic response and robustness, and is more suitable for synchronization control of PMSM chaotic systems in complex environments.