Recent developments in electrical machines, power electronics, and control theories help the variable speed drive technology to offer precise speeds at every level of operation. In that same context, this study investigated on improving the performance of variable speed drive based on a permanent magnet synchronous motor by rejecting the external disturbance in speed control using the passivity-based control and sliding mode control approach. The sliding mode control approach is implemented with an exponential reaching law to improve the robustness of the system. Furthermore, a passivity-based q-axis current loop and d-axis current loop controllers are detailed. The system stability with the proposed scheme is mathematically proved using Lyapunov stability criteria. Simulation results are provided to demonstrate the superior properties of the proposed control method using MATLAB Simulink.

电机，电力电子学和控制理论的最新发展帮助变速驱动技术在每个操作级别提供了精确的速度。在相同的背景下，本研究研究了通过基于被动的控制和滑模控制方法来消除速度控制中的外部干扰，从而改善了基于永磁同步电动机的变速驱动器的性能。滑模控制方法采用指数到达定律来实现，以提高系统的鲁棒性。此外，还详细介绍了基于无源性的q轴电流环路和d轴电流环路控制器。使用Lyapunov稳定性准则以数学方式证明了所提出方案的系统稳定性。