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电网技术  2006 

基于改进拉格朗日乘子修正方法的逆序排序机组组合

, PP. 40-45

Keywords: 电力系统,机组组合,逆序排序机组组合,拉格朗日乘子

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Abstract:

机组组合与经济调度是两个不同范畴的优化决策问题,其优化过程在概念上有本质的区别。用经济调度中的拉格朗日乘子对机组组合中的乘子进行修正有概念含混的误区。文章在阐明机组组合与经济调度中拉格朗日乘子的差异及作用机理的基础上,提出了一种新的逆序排序机组组合中拉格朗日乘子的修正方法,并对机组的搜索范围及机组运行的经济指标作了相应的改进,使原有算法在精度和计算速度上均得到了显著提高。20机、26机及110机测试系统的计算结果表明了文中的改进方法是有效的,进一步增强了机组组合对大规模系统的适应性。

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