考虑调峰约束的风水火随机机组组合问题

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Abstract With the purpose of coordinative optimization of wind-hydro-thermal scheduling and overcoming the peak regulation issue in the future scheduling period, the stochastic unit commitment model with the peak and valley regulation constraints in next scheduling period is proposed. Firstly, in respond to the randomness of wind power, the reduced scenarios are used to simulate wind power, and the coupling operational constraints of wind, hydro, thermal power in each scenario are formulated to make full use of the regulation potential of cascade hydropower and thermal power. Secondly, for the peak regulation issue in next scheduling period, the constraints about unit start and stop status are introduced to satisfy the peak regulation demand in the future scheduling period. Finally, the proposed model stochastic unit commitment, which is a complicated nonlinear model, is transformed to mixed integer linear programming model and solved by CPLEX software. Simulated results show that the optimized unit commitment can effectively enhance the forward-looking of short-term wind-hydro- thermal optimal scheduling, and ensure the output feasibility of each unit type under all scenarios.

Key words： Wind power hydropower thermal power unit commitment peak regulation stochastic

Received: 13 October 2013 Published: 05 November 2014

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	Ge Xiaolin
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Cite this article:

Ge Xiaolin,Zhang Lizi. Wind-Hydro-Thermal Stochastic Unit Commitment Problem Considering the Peak Regulation Constraints[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 222-230.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I10/222

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