A Special Issue on Cyber-Physical Security in Smart Grids
Emerging power systems infrastructure is likely to be exposed to adversaries in various points of the network. Identifying suspicious activities in smart grids is an important challenge to overcome ever been increasing cyber-attacks and other security threats. This special issue presents 4 selected articles to provide insight for emerging cyber-physical security of smart grids.
Mehmet Cintuglu served as the guest managing editor for this special issue.
By Chee-Wooi Ten
The current form of supervisory control and data acquisition (SCADA) system remains in a hierarchical structure where power substation networks under each control area constantly report any physical system abnormality to the energy control center. Deployment of microprocessor-based instrumentation connected to the switchgear has been the norm and the IP-based communication technologies will be the economic driver for the future integration and automation. Remote access to (unmanned) substations in the geographically-dispersed locations is the routine maintenance by utilities in which they must carefully restrict the cross-network access to the critical cyber assets from remote sites. These substation devices are part of the automation where it can be compromised and reached by unauthorized users.
By Mangaya Sivagnanam and Prof. Massoud Amin
The digital technology facilitates two-way communication between the end-to-end grid, the utility and smart buildings. By sensing customers’ needs/desires and automating for services such as demand response, through smartly equipped and connected with judiciously configured Internet-connected Cyber-Physical-Systems (CPS) to support proper, efficient, secure, effective and “price-smart” functioning.
By Juan C. Olivares-Rojas, Enrique Reyes-Archundia, José A. Gutierrez-Gnecchi, Ismael Molina-Moreno, and Adriana Téllez-Anguiano
Nowadays the blockchain is one of the most important topics in research. This is because its applications are varied and in all fields. One of these fields is for the Smart Grid. Although blockchain itself is a cybersecurity mechanism, many of its applications have been carried out in the area of decentralization and trading energy. This work focuses on showing all the advantages and disadvantages of using blockchain as a cybersecurity mechanism in all the parts that make up the smart grid. Finally, it is concluded if the blockchain is the appropriate tool to guarantee information security in the smart grid.
By Samet Tonyali
The ongoing Smart Grid (SG) initiative proposes several modifications to the existing power grid through several new applications. One of these applications is the Advanced Metering Infrastructure (AMI). AMI provides two-way communication between utility companies and the consumers' smart appliances, such as refrigerators, washers, thermostats, etc. through the deployment of smart meters and smart data collection techniques. Smart meters mainly measure the real-time electrical energy consumption of the consumers in addition to power quality and instantaneous electric measurements such as voltage and current at their connection points and periodically report them to the utilities. Thus, utilities can monitor and adjust power demands over short periods (demand response), provide more accurate billing and utilize dynamic pricing to facilitate the reduction of energy consumption in peak demand.
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