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大型互联电网交流计划潮流算法

DOI: 10.13334/j.0258-8013.pcsee.2014.31.019, PP. 5618-5624

Keywords: 交流计划潮流,多断面控制法,大型互联电网,分步逼近,相似潮流

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Abstract:

在中国电网,交流计划潮流计算是校核计划安全性的重要基础。该文提出适用于大型互联电网的交流计划潮流算法。首先确立计算必须遵循的忠实性、分区域、真实性和可选择等4个原则;然后给出基于多断面控制法的实现方案。提出分阶段逐步逼近有功计划的方法,并给出3种不同的不平衡功率分配方式;提出以相似潮流中无功分布为初值并根据有功潮流相似度决定参数变化范围的无功调整方法。所提算法的有效性用IEEE39节点和中国国家电网的算例进行了验证,结果表明,所提算法收敛性强,计算结果与计划值和电网实际情况高度接近的潮流结果,具有良好的推广应用价值。

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