Effect of Phasor Measurements on the Choice of Reference Bus for State Estimation
Effect of Phasor Measurements on the Choice of Reference Bus for State Estimation
复制标题
相量测量对状态估计参考总线选择的影响
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Ali Abur
中科院分区：
文献类型：
--
作者：
Jun Zhu;Ali Abur
本文通过假设系统中至少有一个相量测量单元（PMU）的可用性来重新审视状态估计问题的制定。PMU测量的存在消除了需要选择一个参考总线的状态估计问题的制定。然而，它还需要一种机制，通过该机制可以检测、识别错误的PMU测量并从测量系统中移除。本文研究了在单PMU误差存在的情况下，保证鲁棒状态估计的要求。这些要求通过使用包含一个或多个PMU测量的测试系统实现GPS参考状态估计器来验证。
This paper revisits the state estimation problem formulation by assuming availability of at least one phasor measurement unit (PMU) in the system. Existence of PMU measurements eliminates the need to choose a reference bus in the formulation of the state estimation problem. However, it also necessitates a mechanism by which erroneous PMU measurements can be detected, identified and removed from the measurement system. The paper investigates the requirements to ensure robust state estimation in the presence of single PMU errors. These requirements are verified by implementing a GPS referenced state estimator using test systems containing one or more PMU measurements.