Voltage Control and Stability for Solar PV -Wind Energy Hybrid Micro-Gridusing Optimized STATCOM

Electricity generation from wind and solar PV systems are highly dependent upon weather situations. Solar PV and wind systems generates two distinctive fluctuating powers. To achieve constantpower both of them should be stabilized separately. So, a control action is needed. Hence, it is a need for rapid compensation of energy for power transmission and distribution systems. Hence, compensation using STATCOM (Static Synchronous Compensator) is employed for reactive power compensation, to control voltage fluctuations in power generation and to attain a stable operation. STATCOM is provided with 4 PI controllers based on Genetic algorithm. In this model we're using 2MW wind turbine model based on DFIG, 0.4MW solar PV energy system model and a STATCOM rated at 3MVAR. While as compared with conventional controllers, when conventional PI controllers based on GA is used, a higher stability is obtained and voltage fluctuations at the end of busbar are decreased with the aid of 8%.