Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于最优路径的电网状态计算与不良数据辨识

来源:电工电气发布时间:2019-11-19 13:19 浏览次数:13
基于最优路径的电网状态计算与不良数据辨识
 
杜亮
(广州供电局有限公司,广东 广州 510600)
 
    摘 要:电网状态计算与不良数据辨识,能为电力系统运行分析提供准确可靠的数据系统,是电网安全稳定控制的基础。提出了一种考虑不同量测精度和量测方向的网络搜索新方法,选择量测组合精度更高的最优路径进行状态计算。利用电压一致性检测、PMU/SCADA一致性检测、KCL一致性检测和KVL一致性检测方法,实现不良数据辨识。IEEE 14节点系统算例结果表明,最优路径法具有较高的计算精度,且能正确辨识不良数据。
    关键词:最优路径;状态计算;不良数据辨识;一致性检测
    中图分类号:TM744     文献标识码:A     文章编号:1007-3175(2019)11-0025-05
 
Power Grid State Calculation and Outlier Detection Based on Optimal Path-Finding Technique
 
DU Liang
(Guangzhou Power Supply Co., Ltd, Guangzhou 510600, China)
 
    Abstract: State calculation and outlier detection can provide reliable data for power grid security and stability control, so they are extremely important for power system. This paper presented a new state calculation method based on the optimal path-finding network search technique by selecting calculation paths considering redundancy, accuracy and direction. This paper used the voltage consistency check, the PMU/SCADA consistency check, the KCL consistency check and the KVL consistency check to realize the outlier detection. Examples on IEEE 14 bus system show that this method has a high accuracy in state calculation and outlier detection in power system.
    Key words: optimal path; state calculation; outlier detection; consistency check
 
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