Modeling and simulation of photovoltaic hybrid energy systems-optimization of sizing and control

The simulation tool called SimPhoSys (Simulation of Photovoltaic Energy Systems) has been developed to simulate the performance of photovoltaic energy systems. Detailed mathematical models of the system components have been implemented in Matlab/Simulink environment. At this stage of development SimPhoSys provides component models for the PV generator, battery, battery charge controller, electronic converter, diesel generator and various types of loads. The extension of the components library is scheduled. The modular structure of this simulation tool results in a high flexibility of modeling different system designs and facilitates sizing and performance evaluation of renewable energy systems as well as the development of advanced operation control strategies. Special attention has been devoted to simulation speed for the evaluation of long-term performance and to user friendliness.