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An approach of transient angle stability assessment in power system for WAMS measured data
Pages: 33-39
Year: Issue:  6
Journal: Relay

Keyword:  WAMS datakernel principal component analysisECVM classifiertransient stability assessment;
Abstract: 考虑WAMS量测数据刷新速率快,数据量大的特点,提出了一种适用于WAMS量测数据的暂态功角稳定评估方法.选取初始特征量集并用核主成分分析法对特征集进行降维,过滤冗余特征并降低分类器输入向量的维度.构建训练样本集,计算各样本的初始特征量集并进行降维.通过训练ECVM分类器对暂态功角稳定进行评估,并用测试数据集验证分类器的准确率.在新英格兰10机39节点系统中的仿真表明,所提算法有较高的分类准确率,与传统分类算法相比降低了单个样本评估所需的时间,具有工程使用价值.
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