On the robustness in distribution system state estimation

机译：配电系统状态估计的鲁棒性

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The correct behavior of control and protection schemes is basically determined by the availability of accurate information on the system status. For economical reasons the distribution networks are just partially monitored networks. The few real measurements and all the a priori data provide information for distribution system state estimation (DSSE) techniques. An incorrect evaluation of the accuracy of the DSSE results creates decision risks in network management. For this reason, it is fundamental to take into account all the possible uncertainty sources. Furthermore, possible decays of the metrological characteristics of the measurement system elements have to be considered. Such eventualities may significantly affect the trustworthiness of the results. In this connection, this paper focuses on the robustness of the DSSE results. The paper proposes an optimization algorithm suitable to choose the optimal number and position of the measurement devices so that the estimator is robust with respect to possible malfunctions in measurement system components. The results obtained on a small portion of an Italian distribution network are presented and discussed.

机译：控制和保护方案的正确行为基本上取决于系统状态的准确信息的可用性。出于经济原因，配电网络只是部分受监控的网络。少量实际测量值和所有先验数据为配电系统状态估计（DSSE）技术提供了信息。 DSSE结果准确性的错误评估会在网络管理中带来决策风险。因此，至关重要的是要考虑所有可能的不确定性来源。此外，必须考虑测量系统元件的计量特性的可能衰减。这样的偶然性可能会严重影响结果的可信赖性。在这方面，本文着重于DSSE结果的稳健性。本文提出了一种优化算法，该算法适合选择测量设备的最佳数量和位置，从而使估算器对于测量系统组件中可能出现的故障具有鲁棒性。将介绍和讨论在意大利分销网络的一小部分上获得的结果。

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来源
《Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International》|2012年|p.776- 780|共5页
会议地点 Graz(AT)
作者
Attilio Pegoraro Paolo; Sulis Sara;
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作者单位

Department of Electrical and Electronic Engineering, University of Cagliari, 09123, Italy;

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原文格式 PDF
正文语种 eng
中图分类计量学;
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On the robustness in distribution system state estimation

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