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基于阻抗模裕度指标的动态无功补偿装置优化配置方法

DOI: 10.13334/j.0258-8013.pcsee.2014.22.026, PP. 3791-3798

Keywords: 电压稳定,阻抗模裕度,动态无功补偿器,优化配置

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Abstract:

基于非解析复变电力系统的动态分析方法,提出计及负荷特性的阻抗模裕度指标(impedancemodulusmarginindex,IMMI)计算方法。其计算公式能够简单且直观地利用电力系统运行参数。IMMI能够准确地评估负荷节点电压稳定性的水平,从而判定电压稳定薄弱环节。在上述研究基础上,提出动态无功补偿装置优化配置的新方法。它能实现实时跟踪负荷节点的等值电路参数,动态的搜索动态无功补偿装置配置最佳位置。再综合考虑配置点的配置容量的确定原则,比较多种配置方案的效果与成本,得出最后动态无功补偿装置的优化配置方案。通过IEEE14节点系统和广东电网某220kV片区网络的案例说明了新方法更加直接有效。

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