永磁同步电机抗干扰复合滑模控制器的设计

Design of the Robust Composite Sliding Mode Controller for Permanent Magnet Synchronous Motors

中文关键词: 永磁同步电机  滑模控制  分段速率趋近律  干扰观测器

英文关键词: permanent magnet synchronous motor  sliding mode control  piecewise rate-adjusting reaching law  disturbance observer

中文摘要:

      目的 在灌装、封口等包装作业过程中，提高永磁同步电机的快速响应和抗干扰能力，同时减少控制系统的抖振现象。方法 提出一种复合滑模控制策略，设计一种能适应滑模面和系统状态变化的分段速率滑模趋近律，将其与新型积分滑模面结合，设计一种带速度环的滑模控制器。同时，设计一个干扰观测器，用于估计闭环系统的扰动，并将估计后的扰动实时补偿到控制器的输出电流中，构建复合控制器。结果 仿真结果表明，设计的控制器能够显著提高收敛速度，并有效减少了控制系统的抖振，从而提高了动态质量。此外，干扰观测器与控制器结合的复合控制器可以提高系统的抗干扰能力，从而进一步提高了控制性能。结论 文中提出的复合滑模控制策略可以有效提高永磁同步电机调速系统的动态性能，减少控制系统的抖振，为实现高效、稳定的控制提供了有效的解决方案。

英文摘要:

      The work aims to enhance the rapid response, and anti-interference capabilities of permanent magnet synchronous motors (PMSM) during filling, sealing, and other packaging operations, while reducing the vibration of the control system. A composite sliding mode control strategy was proposed and a segmented rate reaching law adaptable to the sliding surface and system state variations was designed. Then, it was combined with a novel integral sliding mode surface to design a speed loop sliding mode controller. Furthermore, a disturbance observer was designed to estimate the disturbance in the closed-loop system, and the estimated value was compensated to the output current of the controller in real time to construct a composite controller. Simulation results demonstrated that the designed controller significantly improved the convergence rate and effectively reduced the vibration of the control system, thereby enhancing the dynamic quality. In addition, the disturbance estimated by the disturbance observer improved the anti-interference capability of the system, further enhancing the control performance. The control strategy of the proposed composite sliding mode controller effectively improves the dynamic performance and anti-interference capability of the PMSM speed control system, reduces the vibration of the control system, and provides an effective solution for achieving efficient and stable control.