Mitigation of Frequency Deviation with Resonant Controller in Microgrid with the Robust Control of an Attached Storage System

Recent development in the small scale power generation using distributed energy resources combined with application of power electronic systems initiated the researchers to the concepts of future power generation technologies such as micro grid. The paper presented involves the control techniques required for the reduction of microgrid frequency deviations. Mainly these frequency deviations are caused by load disturbances and renewable energy sources as they are associated with it because of their inherent variability. In this proposed work, we consider a microgrid where fossil fuel generators and renewable energy sources are combined with a reasonable sized, fast acting battery-based storage system and we developed a robust control technic for reduction of frequency deviation, with the presence of significant (model) uncertainties. The main advantages of the proposed system work is obtained by comparing system frequency deviation between the proposed system (designed via synthesis) and the reference system which uses governors and conventional PID control to cope with load and res transients. The MATLAB/SIMULINK results by using Resonant model has showed that frequency deviation reduction in microgrid with an attached storage system, where it controls and improves the real power, and frequency.