Empirical development of a trusted sensing base for power system infrastructures

Ali Mazloomzadeh, Osama A. Mohammed, Saman Zonouzsaman

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The transition from traditional power systems into smart grid infrastructures constitutes secure data acquisition to prevent widely explored false data injection attacks. In this paper, we design, implement, and deploy a trusted sensing base (TSB) that enhances the security capabilities of traditional commodity power system sensors via enabling them to encrypt analog ac signals at data acquisition points. Nowadays, data encryption occurs at phasor measurement units (PMUs) after the measurements are sampled and digitalized at the analog-to-digital devices. Through pushing the encryption to within the sensors, TSB reduces the size of trusted computing base for the whole smart grid infrastructure and hence increases its trustworthiness. We have developed a hardware working prototype of TSB in a real-world power system test-bed, including PMUs and energy management systems. Results are very promising for practical real-world deployments. TSB encrypts analog signals on the sensor side and retrieves a very accurate estimate of them on the global positioning system-synchronized control center side with minimal latency.

Original languageEnglish (US)
Article number7118249
Pages (from-to)2454-2463
Number of pages10
JournalIEEE Transactions on Smart Grid
Volume6
Issue number5
DOIs
StatePublished - Sep 1 2015

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

Keywords

  • Cyber physical systems
  • cyber security
  • encryption
  • implementation
  • infrastructure
  • power system
  • security
  • smart grid
  • test-bed
  • trusted sensing base (TSB)

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