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求解交直流互联电网多目标无功优化问题的INNC法

DOI: 10.13334/j.0258-8013.pcsee.2014.07.017, PP. 1150-1158

Keywords: 无功优化,交直流互联电网,多目标优化,帕累托最优解,规格化法平面约束法

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Abstract:

以交直流互联系统有功损耗和所有关键节点电压偏差平方和最小化为目标,建立交直流互联系统的多目标无功优化模型,并提出一种求其帕累托最优解的改进规格化法平面约束法。该算法针对帕累托前沿上各点的切线与乌托邦线夹角不同,对规格化法平面约束法进行改进,即将帕累托前沿按照一定规则分割成4段,每段对应1个子乌托邦线,从而将原多目标优化问题分解为4组多目标优化问题。再对每个子乌托邦线进行等距离分割处理,每组多目标优化问题可转化为求解一系列单目标优化问题。对南方电网交直流765节点等值系统的计算表明,所提出的算法能够有效求解实际交直流大电网多目标优化问题,且所求得的最优解集在帕累托前沿上分布更均匀。

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