Abstract
Cybersecurity is an emerging challenge for power systems, as it strongly affects their reliability and the whole energy system cost. The paper uses several Unit Commitments (UC) models, applying different methods to tackle renewables’ uncertainty. The selected power system is IEEE RTS 96. The UC models are used to assess the impact of different cybersecurity threats. The focus is to assess their impact on the total operating cost and the power grid adequacy to handle them. The comparison between the UC models shows that more robust UC models lead to higher total operating costs. The cost, unit dispatching, and energy mix evolution have a non-linear trend, depending on the power system characteristics and the cyberattacks types. However, the paper provides evidence of considerable price signals in the case of the examined cyberattacks. Each Transmission System Operator (TSO) should examine combinations of cyberattacks and operating conditions to identify crucial cases for system stability and power system cost operation. The applied methodology would also require substantial developments or supplementary approaches to assess cyberthreats at the distribution level.
Highlights
Power systems are among the most complex and critical infrastructures of a modern digital society, serving as the backbone for its economic activities and security
Novel Internet of Things (IoT) nodes and smart meters are introduced in various parts of the energy grid, while existing SCADA systems are used for monitoring and control operations that are widely dispersed in case of energy transport and distribution networks
The examined scenarios focus on a comparison among the different Unit Commitments (UC) models and secondly on the comparison among the different providing a comparison among the different UC models and secondly on the comparison among the cybersecurity attacks
Summary
Power systems are among the most complex and critical infrastructures of a modern digital society, serving as the backbone for its economic activities and security. It is in the interest of every country to secure their operation against cyber risks and threats [1], as stated in the report of the European Commission’s Smart Grids Task Force, as well as in the ‘Cyber Security in the Energy. Over the last few decades, the power system has been modernized This modernization concerns (i) market aspects, due to its liberalization, (ii) organizational aspects, due to the change of roles from the utilities, where central planning is replaced by decentralized operation with active participation of final consumers, as well as (iii) operational aspects, due to the evolution of smart technologies and communication protocols. Novel Internet of Things (IoT) nodes and smart meters are introduced in various parts of the energy grid, while existing SCADA systems are used for monitoring and control operations that are widely dispersed in case of energy transport and distribution networks
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