Locational reserve disqualification for distinct scenarios

Joshua D. Lyon, Muhong Zhang, Kory Hedman

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Reserve requirements promote reliability by ensuring resources are available to rebalance the power system following random disturbances. However, reliability is not guaranteed when dispatch is limited by transmission constraints. In this work, we propose a modified form of reserve requirement that identifies response sets for distinct contingency scenarios. The approach disqualifies reserve from counting towards a particular scenario if transmission constraints are likely to render that reserve undeliverable. A decomposition algorithm for security-constrained unit commitment dynamically updates the response sets to address changing conditions. Testing on the RTS 96 test case demonstrates the approach applied in tandem with existing reserve policies to avoid situations where reserve is not deliverable due to transmission constraints. Operational implications of the proposed method are discussed.

Original languageEnglish (US)
Article number6815701
Pages (from-to)357-364
Number of pages8
JournalIEEE Transactions on Power Systems
Issue number1
StatePublished - Jan 1 2015


  • Operating reserve
  • optimization
  • power system economics
  • power system reliability
  • power system security
  • reserve requirements
  • unit commitment

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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