Sample-Control-Device of Smart Substation

doi:10.11930/j.issn.1004-9649.202108009

Abstract

Abstract: At present, smart substations adopt process-level equipment of "intelligent terminals and merging units". In this way, the merging unit cannot meet the basic requirement of "the damage of a single component inside the device cannot cause the protection to malfunction". In the process layer, messages between equipment are mostly in one-frame mode. Once the message is abnormal, it will often cause the protection to malfunction. In order to improve the reliability of relay protection, a new generation device architecture with complete dual is proposed. Key technologies such as voltage seamless selection technology, time-delay measurable switching technology, process layer networking and Lagrange interpolation are proposed.

Key words: smart substation, high reliability, control device, delay measurable

LI Xiaobo, YU Yang, YAO Hao, XI Wei, CAI Tiantian. Sample-Control-Device of Smart Substation[J]. Electric Power, 2022, 55(4): 85-92.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202108009

https://www.electricpower.com.cn/EN/Y2022/V55/I4/85

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