Stand-Alone Hybrid Photovoltaic– Wind Generating System with Battery/Electrolyzer Storage

In this study, a multi-source hybrid alternative generation system consisting of wind, PV, fuel cell, electrolyzer and Super capacitor is proposed. Wind and photovoltaic are the primary power sources of the system to take full advantage of renewable energy around us. The FC/electrolyzer combination is used as a backup and long term storage system. For a stand-alone application, a super capacitor is also used in the system as short term energy storage to supply fast transient and ripple power. The overall power management strategy with standalone. Modeling and control of hybrid wind/PV/fc-super capacitor system is proposed in this dissertation work. All energy source and component is connected to the Ac bus. The main component of hybrid dynamic model are wind energy conversion system, PV energy conversion system, fuel cell, super capacitor, power electronics interfacing circuits, battery, hydrogen storage tank, gas compressor. Modeling and control of PV cell, Modeling and control of WECS, Modeling of fuel cell – super capacitor combination system and overall power management strategy are discussed in this dissertation work. Based on the dynamic component models, a simulation model for the proposed hybrid energy system has been developed using MATLAB/Simulink. For the coordination of power flowing between different energy sources the overall power management strategy is effective and power flow between different energy sources and load demand is balanced.