Advanced control of on-ship solar tracker using adaptive wide range ANFIS

Problem of a tracker on a ship is to maintain focus accuracy to point the sun on nonlinear and time variant disturbance condition, which is caused by ship's rotational movements. The tracker requires a suitable x-y axes Cartesian mechanical system and an adaptive control method. In this paper, we propose an Adaptive Wide Range ANFIS (Adaptive Neuro Fuzzy Inference System) method to compensate the sun angle trajectory toward vessel movements of an on-ship solar tracker. Meanwhile, in the previous research, conventional method performed instability in handling time variant disturbance. This paper develops model of an on-ship tracker, vessel's rotational movements and ANFIS control. ANFIS input consists of two group, which are target position and base disturbance position. ANFIS is trained using conventional method, but under various condition and adjustment. As a result, the proposed control performs significant stability, engine vibration immunity, and wide range time variant response in achieving focus accuracy on a traveling ship simulation with 0.0028 percent error.