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Cyber-Physical-Security Framework for Building Energy Management System
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0002-4210-8672
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2016 (English)Conference paper (Refereed)
Abstract [en]

Energy management systems (EMS) are used to control energy usage in buildings and campuses, by employing technologies such as supervisory control and data acquisition (SCADA) and building management systems (BMS), in order to provide reliable energy supply and maximise user comfort while minimising energy usage. Historically, EMS systems were installed when potential security threats were only physical. Nowadays, EMS systems are connected to the building network and as a result directly to the outside world. This extends the attack surface to potential sophisticated cyber-attacks, which adversely impact EMS operation, resulting in service interruption and downstream financial implications. Currently, the security systems that detect attacks operate independently to those which deploy resiliency policies and use very basic methods. We propose a novel EMS cyber-physical-security framework that executes a resilient policy whenever an attack is detected using security analytics. In this framework, both the resilient policy and the security analytics are driven by EMS data, where the physical correlations between the data-points are identified to detect outliers and then the control loop is closed using an estimated value in place of the outlier. The framework has been tested using a reduced order model of a real EMS site.

Place, publisher, year, edition, pages
KTH EE Reglerteknik, 2016.
Keyword [en]
Cyber-physical-security, energy management system, resilient control, virtual sensor, security analytics
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-187756DOI: 10.1109/ICCPS.2016.7479072OAI: oai:DiVA.org:kth-187756DiVA: diva2:931549
Conference
ACM/IEEE 7th International Conference on Cyber-Physical Systems (ICCPS)
Note

QC 20160623

Available from: 2016-05-29 Created: 2016-05-29 Last updated: 2016-06-23Bibliographically approved

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Paridari, KavehSandberg, Henrik
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