大规模风电接入的运行场景无功优化评估Operation Scenario Reactive Power Optimization Assessment With Large-Scale Wind Farm Integration
明杰;向红吉;戴朝华;陈维荣;廖国栋;
摘要(Abstract):
场景分析是含风电电力系统处理风电随机性的典型方法,然而由于风电出力对电力系统运行的影响具有复杂的非线性,传统风电场景模型难以保证风电场景与电力系统优化运行保持一致。为此,不同于传统方法的先对风电场景聚类、再进行运行优化,而是先将风电出力样本代入无功/电压运行优化,对优化结果的无功/电压控制矢量进行场景聚类,再映射出风电的场景聚类,从而提出含大规模风电电力系统的无功/电压运行场景模型。考虑到K-means聚类方法难以确定聚类数的问题,通过聚类指标得到运行场景的最佳聚类数。将澳大利亚2个风电场实际数据接入到IEEE 30节点系统中,分别进行传统风电场景分析和所提出的运行场景分析,比较了系统网损和电压的概率特性,验证了所提出的运行场景分析方法的合理性和优越性。
关键词(KeyWords): 大规模风电;无功/电压优化;聚类;风电场景;运行场景
基金项目(Foundation): 国家自然科学基金项目(51307144)~~
作者(Author): 明杰;向红吉;戴朝华;陈维荣;廖国栋;
Email:
DOI: 10.13335/j.1000-3673.pst.2016.09.022
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