Microgrid Control: Synthesis Examples

This chapter addresses several synthesis methodology examples for controller design in a microgrid (MG). These examples cover all control levels, that is, primary, secondary, global, and emergency controls. The applied algorithms and control techniques are mostly based on robust, intelligent, and optimal/adaptive strategies. The chapter addresses a robust voltage control synthesis technique based on Kharitonov's theorem for an isolated MG. In this, a simple PI structure is used for the voltage controller; however, the PI parameters are tuned by Kharitonov's theorem and the D-stability concept. Energy consumption scheduling and power dispatching can be considered as important global control issues in distribution networks with interconnected MGs. The chapter suggests an effective load shedding (LS) scheme based on both voltage and frequency records as the last action to prevent the system blackout.