An optimized STATCOM controller for voltage stability and reactive power compensation in an isolated micro grid

This paper discusses reactive power regulation and stability study in an isolated wind type microgrid. This paper proposes a STATCOM controller for compensating reactive energy in a wind-diesel based stand-alone hybrid power system. The transfer function small signal model of the stand-alone hybrid power system has been considered which consists of a photo voltaic cell, a double fed Induction generator based wind turbine and a Diesel generator as a backup. The system performance is watched with variation of reactive power loads, variable wind power input and non linear solar radiation variation and the impact upon voltage stability and reactive power compensation is studied. Further the system performance is improved and analyzed with the incorporation of GA, PSO.