利用无线冗余过程总线提高变电站分布式PMU的可用性

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI:10.1109/I2MTC.2014.6860744

P. Castello, P. Ferrari, A. Flammini, C. Muscas, P. Pegoraro, S. Rinaldi

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引用次数: 4

摘要

变电站的保护和测量系统要求具有高可用性。当考虑全数字化变电站保护系统时，所有组件和基础设施设备(仪表变压器、处理单元、合并单元、智能电子设备、通信网络和同步源)都有助于整体可用性水平。本文特别研究了受IEC 61850标准启发的分布式相量测量单元的可行性。提出了一种利用IEEE 802.11无线网络冗余来提高分布式PMU可靠性的经济有效的解决方案。过程总线对时间同步协议和承载测量信息的采样值包都有无线备份。报告了使用基于软件的时间戳进行PTP同步的无线网络的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improving availability of distributed PMU in electrical substations using wireless redundant process bus

Protection and measurement systems in electrical substations are requested to have high availability. When considering an all-digital substation protection system, all the components and infrastructure devices (instrument transformers, processing units, merging units, intelligent electronic devices, communication network and synchronization source) contribute to the overall availability level. In particular, in this paper the availability of a distributed phasor measurement unit inspired by the standards IEC 61850, is investigated. A cost-effective solution to enhance distributed PMU reliability by means of redundancy using an IEEE 802.11 wireless network is proposed. The process bus has a wireless backup for both time synchronization protocol and sampled values packets carrying measurement information. Results are reported for a wireless network that uses software based timestamping for PTP synchronization.

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2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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