基于模式搜索算法的电力系统机组组合问题

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Abstract Unit commitment belongs to mixed variables programming which is difficult to find the optimal solution in mathematics. This paper presents a general pattern search algorithm with mixed variable (GPSMV) to solve unit commitment problems at the first time. The proposed algorithm can solve problems for which the objective function is nonlinear, nonconvex, nondifferentiable, stochastic, or even discontinuous. GPSMV guarantees global convergence and it only needs values of objective function and barrier functions consisted by constraint condition while discards the information of their derivative. During the process of optimization, the discrete variables can be deal directly while not dividing original problem to be discrete and continuous part. Simulations are executed on six systems of 10～100 units and 26 units in 24 time intervals, and the results verify the effectiveness of the proposed algorithm.

Key words： Unit commitment filter algorithm pattern search algorithm discrete variables mixed variables

Received: 20 January 2008 Published: 14 February 2014

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TM732

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	Li Jinghua
	Wei Hua

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Li Jinghua,Wei Hua. A General Pattern Search Algorithm for Electric Power System Unit Commitment Problems[J]. Transactions of China Electrotechnical Society, 2009, 24(6): 121-128.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I6/121

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