Load Shedding, Emergency and Local Control

Abstract

Nowadays, control of smart grids is of great importance in power networks. Considering loads and generations uncertainties is a paramount idea amongst researchers to illustrate real conditions of smart networks. Furthermore, special methods are being required to prevent cascading failures in emergency conditions whenever an islanded Microgrids (MGs) tends to work independently. The first important factor is that loads demand are supposed to be completely catered in islanded MGs. Sometimes, shedding some unnecessary predetermined loads to attain systems previous balanced condition is common in electrical networks. In this chapter, we want to present an array of methods to control MGs in emergency conditions considering uncertainties. In this chapter, we focus our effort on developing a coordination control algorithm using Emergency Demand Response (EDR) resources and Under Frequency Load Shedding (UFLS) methods considering various probabilistic scenarios. It is of supreme importance to design an optimal load shedding strategy in which customers and distribution companies’ rights are guaranteed.