Reliability evaluation of distribution system with Hybrid Wind/PV/Pico-Hydro Generation

The growing depletion of natural resources, renewable energies has attracted much attention. In this paper three different models which are Wind Turbine Generator (WTG), Photo voltaic (PV) and Pico-Hydro Generator (PHG) are combined as Small Autonomous Hybrid Power System (SAHPS) for reliability evaluation, which are based on different energy sources and operation characteristics. This paper presents models to obtain the SAHPS output and Markov modeling for evaluating availability of SAHPS. The algorithm for restoration time assessment of load point is developed when the SAHPS unit is installed. The reliability performance of Distribution System is analyzed in terms of Distribution System reliability indices with SAHPS and without SAHPS for different load points on a simple 7-bus radial feeder for four different customer scatterings.