Adaptive Control of Synchronous Reluctance Motor via Estimation of Machine Inertia and Friction Coefficient

The paper suggests a method for improving the performance of the speed loop PI controller by incorporating both feed-forward and adaptive control strategies. When a system needs to track a quickly changing reference frame, the increased bandwidth requirements often result in increased sensitivity to noise and decreased robustness. To improve reference tracking and maintain noise rejection capabilities, the paper proposes the use of a feed-forward controller to enhance reference tracking, with the feedback action being used to stabilize the system and suppress high frequency disturbances. This approach can improve the speed response by providing better tracking and resistance to load disturbances. This methodology has applications in the field of electrical drives and is particularly relevant in compensating for deviations in system parameters that can negatively impact the performance of the speed loop.