Frequency control of an islanded microgrid using self-tuning fuzzy PID controller

This For microgrids operating in the islanding mode, the stochastic and intermittent output from renewable energy may result in system frequency deviating from the desired level as renewable energy is increasingly integrated into the power system. This paper discusses a self-tuning based fuzzy PID controller frequency control technique for an island microgrid. The fuel cell, flywheel energy storage system, battery energy storage system, diesel generator, and PV system make up the proposed microgrid system. Due to the growing complexity and nonlinear nature of these systems, the fluctuation in the consumption load and generated power has made frequency regulation difficult. This controller’s main goal is to regulate the frequency of an island microgrid. Self-tuning fuzzy PID controller and PID controller are compared, and the results of the simulation reveal that the fuzzy performs better in terms of frequency deviations.