Improved Linear Active Disturbances Rejection Control with Average Back-EMF Compensation for High-Speed Switched Reluctance Motor

To improve the dynamic performance and robustness of high-speed switched reluctance motors (SRMs), this paper proposes an improved linear active disturbances rejection controller (LADRC) with back-EMF control and angle control consideration. The improved LADRC is used to enhance the observation ability of disturbances. The average back-EMF in a specific rotor area is estimated by the back-EMF controller. The outputted turn-on angle takes both efficiency and dynamic performance into consideration. Finally, a simulation model is developed for a 6/4 poles high-speed SRM, and the results verify the effectiveness of the proposed method.