Design of GWO-MBIMC Controller to Stabilize the Frequency of Microgrid on Real-Time Simulation [OPAL-RT OP4510] Platform

The frequency of an independent microgrid (MG) system is attempted to be controlled in this work utilizing an IMC-based PID controller and Droop-based controllers (DBC) or modified bias (MB) controller with Grey Wolf Optimization (GWO) in extremely unfavourable conditions. Frequency deviation occurred in the system because of mismatch between Actual Generated power and total load demand. To address this issue the MB & IMC-based gain parameters of the microgrid are taken into consideration for finding the limits of control parameters for GWO, which will make sure that the search points produced by GWO are robust and stable. In real-time simulation environments using the digital simulator OPAL-RT, simulation of the proposed (GWO-MBIMC) controller-based MG model has been appropriately tested. In various real-life situations, the system performance is obtained using the GWO-MBIMC controller and system outputs are closely investigated. The performance of proposed controller is compared with that of PSO-MBIMC, MBIMC, and MB-LDR controllers. The result shows that, in forms of peak deviation, time of settling and a smaller no. of oscillations, the proposed GWO-IMC controller provides the most optimum adaptive output.