The Performance of a Solar Wind Hybrid System in Power Grid

Application of FACT controller called static synchronous compensator STATCOM to improve the performance of power grid with solar wind hybrid system is investigated. The essential feature of the STATCOM is that it has the ability to absorb or inject the reactive power with power grid at a faster rate. STATCOM also helps in restoring the stability and controlling the voltage dip after severe disturbances such as faults or wind farm mechanical power variation. Statcom injects or absorbs the reactive power through a voltage source converter very rapidly. Its multipulse configuration generate voltage waveforms with lesser harmonics in it. The statcom's dynamic response is very fast and is able to pass from capacitive to inductive mode of operation in few cycles. When the ac voltage of the system decreases the statcom reacts by injecting reactive power in the system and the statcom is said to be in capacitive mode. The dynamic model of the proposed system is simulated using Simulink MATLAB software. To validate the effect of STATCOM the solar wind hybrid system is subjected to different disturbances.