On-line tuning adaptive controller design for a synchronous reluctance motor drive system

The paper proposed a new adaptive controller design for a synchronous reluctance motor drive system. In this paper, an on-line tuning adaptive controller is proposed. This on-line adaptive controller is based on least-mean-square algorithm. The adaptive controller is constructed by using an adaptive model and an adaptive control. The parameters of both the adaptive model and adaptive control are on-line tuned. By using the proposed method, the transient responses, load disturbance responses and tracking responses of the drive system are improved. The proposed method can perform a wide adjustable speed from 1 r/min to 1800 r/min as well. A digital signal processor, TMS-320F-28335, is used to execute the adaptive current-loop, and speed-loop controllers. Experimental results can validate the theoretical analysis and show the feasibility and correctness of the proposed method.