Real-time Voltage Instability Indicator (RVII): Enhancements and Case Studies

For the first time in almost 3 years, I have a new technical paper to share on this blog. The paper was written for a conference, and it talks about a measurement-based voltage instability detection method that I worked on as part of my job. It might be an interesting read for those in the electric power industry, especially those who deal with real-time operation and monitoring. This is the first paper that I (co)authored as part of my current job and my professional career, and I’m glad it finally got published. Read below for the abstract and link to the full paper.

Real-time Voltage Instability Indicator (RVII): Enhancements and Case Studies

By V. Madani, R. Anilkumar, X. T. Jiang, B. Avramovic, and D. Novosel

Abstract

Real-time Voltage Instability Indicator (RVII) belongs to the class of measurement based voltage stability indicators that are real-time, model-free, and run at synchrophasor rates. These features allow RVII to react instantly to changes in the system, detect imminent instability, and serve as a defense mechanism against critical conditions. The foundation of RVII is based on the principles of maximum power transfer and Thevenin equivalents, which make it adaptive and scalable for use in advanced features including extrapolation, prediction, and model based contingency analysis initiation. This paper describes improvements to these advanced features, with practical use cases presented using a combination of results from offline and online testing through integration at Pacific Gas and Electric Proof of Concept facility.

Access the full paper HERE

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