Identifilcation of Circuit Breaker Statuses in WLS State Estimator
Identifilcation of Circuit Breaker Statuses in WLS State Estimator
复制标题
WLS 状态估计器中断路器状态的识别
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
P. Katsikas
中科院分区：
文献类型：
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作者：
G. Korres;P. Katsikas
本文提出了一种在电力系统状态估计中对断路器状态进行概率建模和识别的方法。通过将断路器上的有功和无功功率流及其状态作为状态变量来扩展传统的 WLS 状态估计器。还介绍了每个断路器的附加伪测量。每个断路器的状态通过SCADA获取或由操作员输入。根据实时测量的冗余和质量，该方法可以估计正确的断路器状态。还利用了用于模拟和拓扑测量的可观测性分析和不良数据处理的方案。该方法以 12 节点系统为例进行说明。
This paper presents a method for probabilistic modeling and identification of breaker statuses in power system state estimation. The conventional WLS state estimator is extended by incorporating the active and reactive power flows on circuit breakers and their statuses as state variables. Additional pseudo measurements for each circuit breaker are also introduced. The status of each circuit breaker is obtained through SCADA or entered by operators. Depending on the redundancy and quality of real-time measurements, the method can estimate the correct breaker statuses. A scheme for observability analysis and bad data processing for analog and topological measurements is also utilized. The method is illustrated with a 12-node system.