Wind power forecasting uncertainty and unit commitment

J. Wang, A. Botterud, R. Bessa, H. Keko, L. Carvalho, D. Issicaba, J. Sumaili and V. Miranda

Applied Energy, 2011, vol. 88, issue 11, 4014-4023

Abstract: In this paper, we investigate the representation of wind power forecasting (WPF) uncertainty in the unit commitment (UC) problem. While deterministic approaches use a point forecast of wind power output, WPF uncertainty in the stochastic UC alternative is captured by a number of scenarios that include cross-temporal dependency. A comparison among a diversity of UC strategies (based on a set of realistic experiments) is presented. The results indicate that representing WPF uncertainty with wind power scenarios that rely on stochastic UC has advantages over deterministic approaches that mimic the classical models. Moreover, the stochastic model provides a rational and adaptive way to provide adequate spinning reserves at every hour, as opposed to increasing reserves to predefined, fixed margins that cannot account either for the system’s costs or its assumed risks.

Keywords: Electricity markets; Forecasting; Dispatch; Stochastic optimization; Unit commitment; Wind power (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (88)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:88:y:2011:i:11:p:4014-4023

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DOI: 10.1016/j.apenergy.2011.04.011

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