Co-ordinated frequency support of Solar-field/Wind based Independent Hybrid Micro-grid System using WOA optimized single Controller

Due to the rapid enhancement of renewable energy resources (RSs) as well as to control the environmental pollution, integration of RESs in the modern power system has been attracting a lot of attention. This article highlights an attempt to contain the deviation of system frequency under Wind turbine generator, Solar field, Diesel engine generator, Aqua-electrolyzer and Fuel cells based independent hybrid microgrid by an optimal single controller load frequency control (LFC) strategy with the help of a more recent Whale optimization algorithm. Integration of two RESs (WTG, SF) and load variation gives microgrid frequency fluctuation with different adverse effect of the power system. For controlling the frequency fluctuation an intelligent control strategy is used in proposed microgrid system to monitor and adjust the system frequency as well as manage the active power. The performance comparison of different controllers (I, PI, PID) as well as two algorithms (PSO WOA) taken into consideration which reveals in terms of Peak deviations, settling time and objective function values. All the case studies have been simulated under MATLAB-Simulink environment and the optimized responses shows that WOA optimized PID controller is better than PSO optimized PID controller.