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高压电器  2014 

粒子群算法应用于避雷器均压环配置优化

, PP. 102-106

Keywords: 均压环,配置优化,电压承担率,粒子群算法

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Abstract:

合适的均压环配置即均压环数量和参数能使避雷器电阻片的电压承担率分布更加均匀,均压环数量、参数与电压承担率之间存在着复杂的多维非线性关系,均压环最优配置难于求解但易于评估。为了研究该问题,应用粒子群算法对均压环配置进行优化计算,以最大电压承担率为目标,建立不同个数均压环的优化模型,根据个体适应度值自适应调节惯性权重以提高种群的全局与局部寻优能力。算例结果表明对500kV避雷器配置3个均压环和配置2个均压环进行优化计算,优化后最大电压承担率分别为1.104和1.143,均小于1.15,满足相关要求。其中,前者优化后均压效果更为显著;后者优化后结构更为简单。

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