期刊
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
卷 4, 期 4, 页码 504-512出版社
CHINA ELECTRIC POWER RESEARCH INST
DOI: 10.17775/CSEEJPES.2016.01120
关键词
Complementarity constraint; economic dispatch; electric vehicle; relaxation; storage
资金
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51621065]
- National Natural Science Foundation of China [51537006]
- China Postdoctoral Science Foundation [2016M600091, 2017T100078]
Storage is widely considered in economic dispatch (ED) problems. To prevent simultaneous charging and discharging of a storage device, a storage-concerned ED problem should involve complementarity constraints for every storage device to make the problem strongly non-convex. In this case, the conventional Karush-Kuhn-Tucker optimality conditions are unsuitable, and the methods that are normally effective are also invalid. In our recent paper, we proposed a new exact relaxation method that directly removes the complementarity constraints from a storage-concerned ED model to make it convex and easy to solve. This paper extends the previous study by presenting and analyzing two new groups of sufficient conditions that guarantee exact relaxation. Different application conditions of these groups of sufficient conditions are discussed. Numerical tests are performed to show the benefit of using the exact relaxation method and the different suitable application conditions of these groups of sufficient conditions. This paper contributes to a wide application of exact relaxation in storage-concerned ED problems.
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