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含大规模风电场的电力系统概率可用输电能力快速计算

DOI: 10.13334/j.0258-8013.pcsee.2014.04.001, PP. 505-513

Keywords: 风电场,可用输电能力,关键约束,线性预测,扩展潮流法,灵敏度,蒙特卡罗模拟,分层类聚

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Abstract:

针对含大规模风电场的电力系统的可用输电能力(availabletransfercapability,ATC)进行研究,首先基于连续潮流法,提出了线性预测关键约束的改进算法,并引入到交流潮流模型中形成扩展潮流方程求解电力系统确定性ATC,且推导了电力系统ATC对风电等节点的注入功率波动的灵敏度快速估算模型。在此基础上,结合风电并网系统的多维可视化注入功率空间,提出了一种采用分层类聚算法划分蒙特卡罗抽样样本,综合考虑发电机随机故障、线路随机故障、风电场风速、发电机出力和负荷波动等多种不确定因素的概率ATC快速计算方法,最后通过算例分析验证了该算法的快速有效性。

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