Fuzzy Controller for StandAlone Hybrid PV-Wind Generation Systems
G. Balasubramanian1, S. Singaravelu2

1G.Balasubramanian, Electrical Engineering, Annamalai University, Annamalainagar, India.
2Dr.S.Singaravelu, Electrical Engineering, Annamalai University, Annamalainagar, India.
Manuscript received on January 01, 2013. | Revised Manuscript received on January 02, 2013. | Manuscript published on January 05, 2013. | PP: 314-320 | Volume-2, Issue-6, January 2013. | Retrieval Number: F1218112612/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This paper proposes a fuzzy logic based voltage controller for hybrid generation scheme using solar and wind energy for the stand alone applications. The fuzzy logic controller is designed to vary the duty-cycle of the DC-DC converter automatically such that to maintain the load voltage constant. The hybrid scheme inherently adapts to the changes in wind speed or load on generator. A dynamic and steady-state mathematical model and simulations for the entire scheme is presented. The model is implemented in the MATLAB/Simulink platform. Results from the simulations and laboratory tests bring out the suitability of the proposed hybrid scheme in remote areas. 
Keywords: DC-DC converter, Fuzzy logic, Induction generator, PV array, Single-phase and Wind energy.