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Robust unit commitment with dispatchable wind power
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DOI：10.1016/j.epsr.2017.10.002.png)
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Abstract
En 中文
The increasing penetration of uncertain generation such as wind and solar in power systems imposes new challenges to the unit commitment (UC) problem, one of the most critical tasks in power systems operations. The two most common approaches to address these challenges - stochastic and robust optimization - have drawbacks that restrict their application to real-world systems. This paper demonstrates that, by considering dispatchable wind and a box uncertainty set for wind availability, a fully adaptive two-stage robust UC formulation, which is typically a bi-level problem with outer mixed-integer program (MIP) and inner bilinear program, can be translated into an equivalent single-level MIP. Experiments on the IEEE 118-bus test system show that computation time, wind curtailment, and operational costs can be significantly reduced in the proposed unified stochastic-robust approach compared to both pure stochastic approach and pure robust approach, including budget of uncertainty. (C) 2017 The Authors. Published by Elsevier B.V.
Keywords:
Stochastic optimization
Robust optimization
Dispatchable wind
Wind curtailment
Unit commitment
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