Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 32, Issue 6, Pages 4451-4463Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2017.2685640
Keywords
Blackouts; emergency response; generator redispatch; integrated resilience response; load shedding; natural disasters; optimization; preventive response; resilience; resilience definition; resilience enhancement; resiliency; robust optimization; situational awareness; topology switching
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Funding
- National Natural Science Foundation of China [51537010]
- National Basic Research Program (973 Program) [2013CB228206]
- China Scholarship Council
- U.S. Department of Energy's Office of Electrical Delivery and Energy Reliability
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Boosting the resilience of power systems is one of the core requirements of smart grid. In this paper, an integrated resilience response framework is proposed, which not only links the situational awareness with resilience enhancement, but also provides effective and efficient responses in both preventive and emergency states. The core of the proposed framework is a two-stage robust mixed-integer optimization model, whose mathematical formulation is presented in this paper as well. To solve the above model, an algorithm based on the nested column-and-constraint generation decomposition is provided, and computational efficiency improvement techniques are proposed. Preventive response in this paper considers generator re-dispatch and topology switching, while emergency response includes generator re-dispatch, topology switching and load shedding. Several numerical simulations validate the effectiveness of the proposed framework and the efficiency of the solution methodology. Key findings include the following: 1) in terms of enhancing power grid resilience, the integrated resilience response is preferable to both independent preventive response and independent emergency response; 2) the power grid resilience could be further enhanced by utilizing topology switching in the integrated resilience response.
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