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基于LCC和改进粒子群算法的配电网多阶段网架规划优化

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Keywords: 全寿命周期成本,配电网多阶段网架规划,随机粒子群算法,均值聚类分析,停电成本

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Abstract:

市场环境下,配电网规划方案全寿命周期经济性变得越来越重要。基于设备全寿命周期成本建立了配电网多阶段网架及开关布置规划新模型,模型同时考虑了规划方案初始投资、运行维护成本、停电成本、报废成本;在满足各阶段负荷发展需求的条件下,以规划项目全寿命周期经济性最优为目标函数确定不同支路的建设时间;建立了配电网停电成本计算模型,该模型反映了停电频率、停电持续时间及停电电量对停电成本的综合影响。提出一种将均值聚类与随机粒子群算法相结合的改进离散粒子群算法对上述模型进行求解,该算法克服了基本粒子群算法的?早熟?问题。该规划方法使得规划方案不仅满足全寿命周期经济性最优,而且兼顾一定的可靠性水平。规划实例验证了上述模型和方法的正确性和有效性。

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