期刊
IEEE TRANSACTIONS ON POWER SYSTEMS
卷 34, 期 4, 页码 3109-3118出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2019.2896349
关键词
Cut generation algorithm; multi-period economic dispatch (ED); non-anticipativity; robust unit commitment (UC)
资金
- JST CREST [JPMJCR15K1]
To ensure the feasibility of a unit commitment (UC) schedule under uncertainty, most existing two-stage robust UC methods formulate their second-stage problems as a multi-period economic dispatch (ED) problem with dynamic constraints, which does not properly model real-time ED where dynamic constraints relevant to the future operation are not certifiable. This paper proposes a two-stage robust UC method where a UC schedule and a box in a feasible operation set of each power source as its new feasible operation set are determined. As the multi-period ED problem with the refined feasible set at the second stage has no dynamic constraint, it is identical to a series of single-period ED problems. By modeling real-time ED as the single-period ED problems whose solutions depend only on uncertainties at the corresponding times-lots, the proposed method presents a practical framework of nonanticipative robust UC. Simulation results with a 118-bus system demonstrate the performance of the proposed method.
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