Author(s)

Paul Abena Malobe¹, Philippe Djondine^1,2*, Pascal Ntsama Eloundou¹, Hervé Abena Ndongo¹

¹Department of Physics, Faculty of Science, The University of Ngaoundéré, Ngaoundéré, Cameroon.
²Department of Physics, Higher Teacher Training College of Bertoua, The University of Ngaoundéré, Bertoua, Cameroon.

This manuscript presents a new approach MPPT (Maximum Power Point Tracking) for improving and optimizing the performance of a Wind Energy Conversion System (WECS) operating for small variations in wind speed by combining sliding mode control and fuzzy logic control. The proposed method consists of optimizing the sliding mode controller by the fuzzy controller. The main purpose of the Sliding Mode control-Fuzzy Logic controller (SM-FL) is to ensure the robustness (by eliminating certain disadvantages of the sliding mode control such as the phenomenon of chattering) and the stability of the control system in the case of small variations in conditions atmospheric (here variation of the wind). Our system consists of a wind turbine, a Permanent Magnet Synchronous Generator (PMSG) and a DC-DC boost converter connected to a continuous load. The performances of the method suggested are compared with those of fuzzy logic and fuzzy-Proportional Integral (FL-PI) in term speed of convergence, of tracking time and tracking efficiency. The results of numerical simulation of our system confirmed the best performance of this method.

MPPT, Sliding Mode-Fuzzy Logic Controller, Wind Energy Conversion System, Chattering

Malobe, P. , Djondine, P. , Eloundou, P. and Ndongo, H. (2020) A Novel Hybrid MPPT for Wind Energy Conversion Systems Operating under Low Variations in Wind Speed. Energy and Power Engineering, 12, 716-728. doi: 10.4236/epe.2020.1212042.