Control of a hybrid wind turbine/battery energy storage power generation system considering statistical wind characteristics

This paper presents controller design and simulation studies of a hybrid wind turbine/battery energy storage power generation interface to control active and reactive power in distribution systems. First, the modeling of grid-connected hybrid power system was illustrated. A known Weibull distribution presented the wind speed. Further analysis has been considered based on the law of large number and the wind power generated from a closed-form. Power electronic converters used to connect hybrid power system to the AC system. Fuzzy sliding mode controller for the voltage source converter has been presented to control reactive and active powers in the utility grid. In order to verify the proper operation of the proposed controller, a known load profile has been considered. Finally, simulation results have been illustrated to show power flow control capability of the developed control strategy in distribution systems. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4751472]