Real Time Contingency Analysis for Power Grids

  • Anshul Mittal
  • Jagabondhu Hazra
  • Nikhil Jain
  • Vivek Goyal
  • Deva P. Seetharam
  • Yogish Sabharwal
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6853)

Abstract

Modern power grids are continuously monitored by trained system operators equipped with sophisticated monitoring and control systems. Despite such precautionary measures, large blackouts, that affect more than a million consumers, occur quite frequently. To prevent such blackouts, it is important to perform high-order contingency analysis in real time. However, contingency analysis is computationally very expensive as many different combinations of power system component failures must be analyzed. Analyzing several million such possible combinations can take inordinately long time and it is not be possible for conventional systems to predict blackouts in time to take necessary corrective actions.

To address this issue, we present a scalable parallel implementation of a probabilistic contingency analysis scheme that processes only most severe and most probable contingencies. We evaluate our implementation by analyzing benchmark IEEE 300 bus and 118 bus test grids. We perform contingency analysis up to level eight (contingency chains of length eight) and can correctly predict blackouts in real time to a high degree of accuracy. To the best of our knowledge, this is the first implementation of real time contingency analysis beyond level two.

Keywords

Contingency Analysis Risk Index Child Node Power Grid Centralize Scheme 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Anshul Mittal
    • 1
  • Jagabondhu Hazra
    • 1
  • Nikhil Jain
    • 2
  • Vivek Goyal
    • 3
  • Deva P. Seetharam
    • 1
  • Yogish Sabharwal
    • 1
  1. 1.IBM Research - IndiaNew DelhiIndia
  2. 2.University of Illinois at Urbana-ChampaignIllinoisUSA
  3. 3.IIT DelhiNew DelhiIndia

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