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A Stochastic Model for the Optimal Operation of a Wind-Thermal Power System

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4 Author(s)
Pappala, V.S. ; Inst. of Electr. Power Syst., Univ. Duisburg-Essen, Duisburg ; Erlich, I. ; Rohrig, K. ; Dobschinski, J.

This paper presents a stochastic cost model and a solution technique for optimal scheduling of the generators in a wind integrated power system considering the demand and wind generation uncertainties. The proposed robust unit commitment solution methodology will help the power system operators in optimal day-ahead planning even with indeterminate information about the wind generation. A particle swarm optimization based scenario generation and reduction algorithm is used for modeling the uncertainties. The stochastic unit commitment problem is solved using a new parameter free self adaptive particle swarm optimization algorithm. The numerical results indicate the low risk involved in day-ahead power system planning when the stochastic model is used instead of the deterministic model.

Published in:

Power Systems, IEEE Transactions on  (Volume:24 ,  Issue: 2 )