PMU Configuration for System Dynamic Performance Measurement in Large Multiarea Power Systems
PMU Configuration for System Dynamic Performance Measurement in Large Multiarea Power Systems
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DOI：
10.1109/mper.2002.4312070
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
I. Kamwa;R. Grondin
中科院分区：
文献类型：
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作者：
I. Kamwa;R. Grondin
要有效地评估电力系统的动态性能，需要来自适当分布的相量测量单元(PMU)的广域信息。然而，为了最大限度地增加捕获信号的信息量，需要适当地放置传感器，并适当考虑给定系统的基本结构属性。为了实现这一目标，本文提出了两种数值算法。它们的目标是最大化传感器的整体响应，同时最小化传感器输出之间的相关性，从而最小化多个传感器提供的冗余信息。感兴趣的传感器响应是母线电压大小以及角度和频率一致性指数，它们是通过对来自暂态稳定程序的电力系统响应信号的统计抽样来估计的。通过“逐次加法”方案，这些算法之一很容易合并强制位置，如联络线母线和大型发电机升压变压器。所提出的方法首先在魁北克水电输电网上进行了说明，然后在9区/67母线/23机试验网络上进行了说明，该试验网络具有明确的地理边界和预先指定的电相干区之间的弱相互作用。
Effective assessment of the dynamic performance of the power system requires wide-area information from properly distributed phasor measurement units (PMUs). However, to maximize the information content of the captured signals, the sensors need to be located appropriately, with due account given to the structural properties underlying the given system. In this paper, two numerical algorithms are proposed to achieve this goal. They aim to maximize the overall sensor response while minimizing the correlation among sensor outputs so as to minimize the redundant information provided by multiple sensors. The sensor responses of interest are the bus voltage magnitude and the angle and frequency coherency indices, which are estimated by means of a statistical sampling of power system response signals from a transient-stability program. Through the "successive addition" scheme, one of these algorithms easily incorporates mandatory locations such as tie-line busses and large generator step-up transformers. The proposed approaches are first illustrated on the Hydro-Québec transmission grid and then on a 9-area/67-bus/23-machine test network designed with well-defined geographical boundaries and prespecified weak interties between electrically coherent areas.