Decentralized Anomaly Characterization Certificates in Cyber-Physical Power Electronics Based Power Systems

Kirti Gupta*, Subham Sahoo, Rabindra Mohanty, Bijaya Ketan Panigrahi, Frede Blaabjerg

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearchpeer-review

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Abstract

Modern power electronics based power systems with inclusion of information and communication technologies (ICT) have emerged to be cyber-physical systems, making it vulnerable to both cyber and physical anomalies. These systems on one hand are susceptible to grid/system faults, whereas on the other hand, ICT can easily be the potential target of the third-party adversaries. On top, the transient response of cyber-physical power electronics based power systems (PEPS) to the said critical disturbances is very fast, which becomes another challenge to distinguish them accurately within a short time frame. To address this challenge, this paper certifies cyber-physical anomalies using physics-informed empirical laws governed by mapping X-Y plane between locally measured frequency (f) and d-axis voltage (V d ) only, forming a decentralized approach. The anomaly characterization between physical and cyber faults is carried out by tracing the trajectory movement online in the aforementioned X-Y plane. Basically, the physics-informed laws determine the boundaries in this plane to segregate between grid faults and cyber attacks. This decentralized method is effective in classifying the anomalies only within 5 ms (with 20 samples/cycle in a 50 Hz system), which has been validated on modified CIGRE LV benchmark distribution network with real-time (RT) simulations in OPAL-RT environment with HYPERSIM software.
Original languageEnglish
Title of host publication2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL)
Number of pages6
PublisherIEEE
Publication date23 Dec 2021
Pages1-6
ISBN (Print)978-1-6654-3636-6
ISBN (Electronic)978-1-6654-3635-9
DOIs
Publication statusPublished - 23 Dec 2021
Event2021 IEEE 22nd Workshop on Control and Modeling for Power Electronics, COMPEL 2021 - Cartagena, Colombia
Duration: 2 Nov 20215 Nov 2021

Conference

Conference2021 IEEE 22nd Workshop on Control and Modeling for Power Electronics, COMPEL 2021
Country/TerritoryColombia
CityCartagena
Period02/11/202105/11/2021
SeriesIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

Keywords

  • Power Electronics
  • Power Systems
  • Cyber-physical energy systems
  • Cybersecurity
  • Anomaly Detection
  • Decentralized algorithm
  • Faults
  • Cyber Attacks
  • Anomalies

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