Voltage and Frequency Control of Distribution Generation Unit in an Island Mode Microgrid Using Differential Evolution

Abstract

This article presents the best possible power control approach for an inverter on the basis of Distributed Generation (DG) component, in an islanded mode Microgrid on the basis of real-time self-tuning technique. This research seeks to enhance the power supplied by DG units coupled to the main grid, controlling the Voltage and frequency (VF),dynamic response, and harmonic distortion are the main performance parameters measured, when the Microgrid is autonomous or in the load changing state. The controller system consists of an internal current control loop and an external power control loop on the basis of a synchronous reference frame additionally Proportional-Integral (PI) controllers. The power controller is configured for voltage-frequency (Vf) power control mode. Particle Swarm Optimization (PSO) and Differential Evaluation (DE) is an intellectual searching algorithm that is used for real-time self-tuning for the power control parameters. Herein, the DG unit execute the‘Vf’ control mode to control the system voltage as well as frequency. The simulation results prove that the proposed'tVf” controller offer an outstanding response to gratify the power quality obligation and compare the validity of the PSO and DE proposed approach.