Cyber security of electric networks with energy storages

Abstract

Modern Energy Power Systems (EPS) are characterized by a rather high share of distributed generation, renewable energy sources (RES) and energy storage systems (ESS) operating under the control of smart devices. For transition to a qualitatively new level of power industry management, the developed countries create Smart Grids. An effect of sudden changes of loads, power flows in the lines, and changes in the generation, as well as other unexpected factors can negatively affect on stability and reliability of state of EPS as well as lower EPS flexibility that is one of the most relevant features of future energy systems. Use of ESS is one of the recognized options of maintaining the energy system flexibility. At the same time executing energy storages at an energy object and, moreover, their coordination using Internet-technologies globally increase cyber vulnerability of electrical network. At this paper different aspects of cyber security of electrical networks with energy storage units incorporated into them are shown and ways of their cyber resilience are considered. By arranging PMUs in power system nodes using ESS, awareness of the absence of cyber attacks can be increased.