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电网技术  2011 

输电网络的分层分区电压无功调节方法

, PP. 71-77

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Abstract:

基于无功的分层分区平衡与就地补偿原则、中枢点电压的逆调压原则,提出了输电网络电压无功调节方法。首先定义了同层区及其负载率、无功调节能力和无功不平衡度等概念,以此来确定无功平衡与逆调压的理想目标,评估电网的无功平衡水平。在此基础上提出了分层分区的电压无功调节策略,该策略包括3个阶段1)全局电压无功调节;2)无功的分层分区平衡调节;3)终端变电站的局部电压与无功调节。分析了每个阶段的潮流特征,制定了各阶段的电压无功调节规则,尽可能实现全网的电压合格和分层分区的无功平衡。算例结果验证了该方法的有效性。

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