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电网技术  2014 

基于WAMS和EMS的电压稳定在线评估系统

DOI: 10.13335/j.1000-3673.pst.2014.07.033, PP. 1934-1938

Keywords: 广域测量系统,能量管理系统,电压稳定,在线评估系统

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Abstract:

介绍了基于WAMS和EMS的电压稳定在线评估系统的框架结构、功能模块和工程应用情况。利用EMS系统中全面的网络结构、参数及静态量测信息,求得基于网络模型的各负荷节点戴维南等效参数。以该等效参数作为初值,对各PMU采集负荷节点的轨迹信息进行戴维南等效参数跟踪辨识及阻抗模指标计算,并构建了便于量化评估暂态电压稳定可接受性的面积型指标,进而实现针对WAMS系统的静态或暂态电压稳定在线评估。该系统充分利用了WAMS系统的速度、精度、同步及EMS系统的信息全面优势,在河南省电力公司调度中心的应用体现了较好的工程使用价值。

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