Coordinated Control Strategy for LFC in an Islanded Microgrid: A JAYA Algorithm Based Cascade PD-PI Approach

Frequency controlFrequency control in aJaya algorithm Microgrid (MG) has become a major research concern. A significant coordinated control strategy between diesel engine generators (DEG) and energy storage systemsEnergy storage systems (ESSs) for different operating scenarios is needed. This chapter proposes such an intelligent coordinated control strategy based on JAYA optimizationOptimization for fine-tuning cascade proportional derivative—proportional integralProportional integral (PD-PI) controllerController gains. A single-area MG Simulink model is used to validate the proposed control approach. MG dynamic responsesDynamic response to specific loadLoad and renewable energy sourcesRenewable energy sources (RESs) variationsVariation are observed. The proposed approach was analyzed with PD-PI controllerPI controller and a comparative investigation was carried out on cascade PD-PI controllerPI controller with JAYA algorithmJaya algorithm optimizationOptimization. Significant improvement in frequencyFrequency dynamics of MG is seen from simulation results by employing proposed controllersController. In comparison to the PID controllerPID controller optimized with the JAYA controllerController, it is observed that the proposed cascade PD-PI technique is more resistant to parametric uncertainties in MG and ESSs.