A Response Taxonomy and Cost Model for Advanced Metering Infrastructures
The smart grid is creating the potential for security vulnerabilities due to the deployment of networked devices into the traditional grid. A core component of the smart grid is its advanced metering infrastructures (AMIs), in which a utility communicates and controls smart meters at customer sites. The fine-grained control offered by AMIs increases the risk of cyber-attacks. It is critical to develop cost-sensitive automated response and recovery strategies, because manual management of security incidents in such a large and complex system is impractical. This thesis addresses the challenge of enabling automatic responses to cyber-attacks through two main contributions. First, we introduce and classify an ex- tended set of AMI-specific cyber-incident response actions. Second, we define a cost model for response actions. A cost model is an approach for translating security properties into monetary costs. The cost model is a key element in enabling an automated response en- gine to make optimal decisions and mitigate cyber incidents. Since AMIs are cyber-physical systems, the cost model accounts for costs due to both the cyber system and the physi- cal system. In particular, the cost model estimates the effects of cyber-responses on the cyber-system and computes the cost due to the loss of cyberservices. The cost model then estimates the consequences of cyber-responses for the distribution grid. The costs incurred within the distribution grid are due to outages, disruptions of the electricity market, and violations of contractual agreements among stakeholders. Finally, we present a realistic im- plementation of the cost model using ArcGIS for topology generation and GridLAB-D for grid simulation.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
- The following copyright notice applies to all of the above items that appear in IEEE publications: "Personal use of this material is permitted. However, permission to reprint/publish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from IEEE."
- The following copyright notice applies to all of the above items that appear in ACM publications: "© ACM, effective the year of publication shown in the bibliographic information. This file is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in the journal or proceedings indicated in the bibliographic data for each item."
- The following copyright notice applies to all of the above items that appear in IFAC publications: "Document is being reproduced under permission of the Copyright Holder. Use or reproduction of the Document is for informational or personal use only."