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电网技术  2009 

基于双种群粒子群算法的分时段电力系统无功优化

, PP. 72-77

Keywords: 聚类,分时段无功优化,调节代价,双种群粒子群算法

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Abstract:

提出了一种基于双种群粒子群算法的分时段无功优化算法,将复杂的动态无功优化问题转化为静态无功优化进行处理。文中把设备的调节代价和网损费用之和作为目标函数,考虑了包括设备相邻时段调节次数限制等约束条件。在该模型基础上,根据负荷的变化趋势,提出了一种考虑设备一天内调节次数限制的分时段算法。该方法简便,不需设置划分时段的门槛值,保证了分段的有效性和可操作性,且采用双种群粒子群算法对每个时段进行静态无功优化。该算法对离散变量进行了特殊编码,较好地解决了连续和离散变量的共同寻优,降低了网损,并减少了设备动作次数。IEEE30节点算例系统结果验证了所提算法的正确性和有效性。

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