Security and Privacy in Cyber-Physical Systems

Chapter 19Admission Control-Based Load Protection in the Smart Grid

Paul Moulema¹, Sriharsha Mallapuram², Wei Yu², David Griffith³, Nada Golmie³ and David Su³

¹Department of Computer Science and Information Technology, Western New England University, Massachusetts, USA

²Department of Computer & Information Sciences, Towson University, Maryland, USA

³Wireless Network Division, National Institute of Standards and Technology, Maryland, USA

19.1 Introduction

The modern and intelligent power system, also denoted as the smart grid [1], holds the promise of a reliable, secure, efficient, and cost-effective power system through the integration of information and communication technologies. At the macro level, the smart grid is a distributed energy-basedcyber-physical system that consists of heterogeneous and interconnected computational and physical components, which cooperate to carry out smart grid functions and operations [2]. These components can be classified in two domains or systems: the physical domain and the cyber domain. At the micro level, the smart grid relies on a variety of components in both cyber and physical domains, which are responsible for collecting and transmitting data, processing data to derive the state of the system, and issuing proper control to make the system operate efficiently and effectively [3].

The reliability and stability of the energy cyber-physical system (i.e., smart grid) depend on the resilience of the demand response process, the capacity ...