Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title A Sensorless MPPT Control Using an Adaptive Neuro-Fuzzy Logic for PV Battery Chargers
Authors Jung-Hyun Kim ; Gwang-Seob Kim ; Kyo-Beum Lee
DOI 10.6113/TKPE/2013.18.4.349
Page pp.349-358
ISSN 1229-2214
Keywords photovoltaic (PV); neuro-fuzzy; sensorless; maximum power point tracking (MPPT); battery charger; renewable energy; variable step size
Abstract In this paper, the sensorless MPPT algorithm is proposed where the performance of varied duty ratio change has been improved using multi-layer neuro-fuzzy that aligns with neuro-fuzzy based optimized membership function. Since the change of duty ratio of sensorless MPPT is varied by using the neuro-fuzzy, the MPPT response speed is faster than the convectional method and is able to reduce the steady-state ripple. The neuro fuzzy controller has the response characteristics which is superior to the existing fuzzy controller, because of the usage of the optimal width of the fuzzy membership function. The effectiveness of the proposed method has been verified by simulations and experimental results.