Load Frequency Control of Multi-Area Renewable Energy Micro-Grid System

In this paper, a renewable energy microgrid (REMG) of three area system is designed to supply an increasing load demand. Each area is designed to have either energy storage system or additional source to supply the sudden increase in load demand. To maintain the system stability the frequency variation and tie-line power exchange are constantly measured. Frequency deviation and real power control termed as LFC is employed to monitor the error. A fractional order (FO) PI controller is proposed for the designed multiarea micro-grid. Optimzation techniques such as Firefly Algorithm and Partical Swarm Optimization are performed and the proposed controller is compared with the classical PI controller. The experiment is carried out in MATLAB software.