Relay protection mirror operation technology based on digital twin

IF 8.7 1区 工程技术 Q1 ENERGY & FUELS
Zhiqing Yao, Danyang Li, Zhiyong Li, Pengpeng Zhou, Lei Li
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引用次数: 0

Abstract

Abstract When conducting relay protection research, research costs can be significantly reduced if protection principle development, protection parameter verification and debugging can be carried out without relying on actual protection devices. The concept of ‘digital twin’ has made this possible, but the existing research has shortcomings in real-time data interaction ability, protection logic transparency, interface standardization, human–computer interaction etc., and consequently, mirror operation of relay protection in digital space has not been fully realized. Therefore, referring to the characteristics of digital twin, and combining with the practical application requirements in relay protection, this paper proposes the concept and characteristics of relay protection mirror operation based on digital twin. Key solutions are proposed to address the difficulties that may be encountered in the implementation of relay protection mirror operation in terms of protection principles, interfaces, real-time operation of the system, and human–computer interaction function simulation. Finally, an example of 110 kV double-bus and double-branch bus protection is used to verify the feasibility and progressiveness of the scheme proposed in this paper by comparing the action behavior and external characteristics of the twin protection and the actual protection device. The presented research can provide a reference for further in-depth research and application of relay protection using digital means.
基于数字孪生的继电保护镜像操作技术
摘要在进行继电保护研究时,如果可以不依赖实际保护装置进行保护原理开发、保护参数验证和调试,可以大大降低研究成本。“数字孪生”的概念使这成为可能,但现有的研究在数据实时交互能力、保护逻辑透明、接口标准化、人机交互等方面存在不足,因此没有完全实现数字空间中继电保护的镜像操作。因此,本文参考数字孪生的特点,结合继电保护中的实际应用需求,提出了基于数字孪生的继电保护镜像操作的概念和特点。针对继电保护镜像操作在实现中可能遇到的困难,从保护原理、接口、系统实时性、人机交互功能仿真等方面提出了重点解决方案。最后,以110kv双母线双支路保护为例,通过对比双保护与实际保护装置的动作行为和外部特性,验证了本文所提方案的可行性和先进性。本文的研究可以为进一步深入研究和应用数字化手段的继电保护提供参考。
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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来源期刊
CiteScore
20.10
自引率
8.20%
发文量
43
审稿时长
4 weeks
期刊介绍: Protection and Control of Modern Power Systems (PCMP) is the first international modern power system protection and control journal originated in China. The journal is dedicated to presenting top-level academic achievements in this field and aims to provide a platform for international researchers and engineers, with a special focus on authors from China, to maximize the papers' impact worldwide and contribute to the development of the power industry. PCMP is sponsored by Xuchang Ketop Electrical Research Institute and is edited and published by Power System Protection and Control Press. PCMP focuses on advanced views, techniques, methodologies, and experience in the field of protection and control of modern power systems to showcase the latest technological achievements. However, it is important to note that the journal will cease to be published by SpringerOpen as of 31 December 2023. Nonetheless, it will continue in cooperation with a new publisher.
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