A study on the stand-alone operating or photovoltaic/wind power hybrid generation system

Photovoltaic energy and wind energy are very in constant depending on the season, time and extremely intermittent energy sources. Because of these reasons, in view of the reliability the solar and the wind generation system have many problems(energy conversion, energy storage, load control etc.) comparing with a conventional power plant. So, in order to solve these existing problems, hybrid generation system of photovoltaic and wind power, which combines wind power energy and solar energy to have effect of supporting each other, was suggested. But, hybrid generation system cannot always generate stable output with weather condition, auxiliary generation apparatus that uses elastic energy of spiral spring to hybrid generation system was also added for the present study. And it may confirm that power was continuously provided to load by storing energy obtained from generating rotary energy of spiral spring generates in small scale generator.