中国电力 ›› 2023, Vol. 56 ›› Issue (7): 156-162,174.DOI: 10.11930/j.issn.1004-9649.202207053

• 电网 • 上一篇    下一篇

基于边缘物联的电力系统二次继保设备测试管控技术

叶远波1, 章昊1, 王同文1, 王志华2, 陈勇2   

  1. 1. 国网安徽省电力有限公司,安徽 合肥 230022;
    2. 武汉凯默电气有限公司,湖北 武汉 430223
  • 收稿日期:2022-07-20 修回日期:2023-05-22 发布日期:2023-07-28
  • 作者简介:叶远波(1973-),男,硕士,教授级高级工程师,从事电力系统继电保护方向研究,E-mail:yeyb7079@ah.sgcc.com.cn
  • 基金资助:
    国家电网公司总部科技项目(5212002000AR)

Test and Control Technology for Secondary Relay Protection Equipment of Power System Based on Edge IoT

YE Yuanbo1, ZHANG Hao1, WANG Tongwen1, WANG Zhihua2, CHEN Yong2   

  1. 1. State Grid Anhui Electric Power Co., Ltd., Hefei 230022, China;
    2. Wuhan Kemov Electric Co., Ltd., Wuhan 430223, China
  • Received:2022-07-20 Revised:2023-05-22 Published:2023-07-28
  • Supported by:
    This work is supported by Science & Technology Project of SGCC (No.5212002000AR)

摘要: 为解决变电站继电保护测试自动化程度不高、测试报告管理混乱等问题,提出了一种基于边缘物联的保护装置测试与管控技术。利用云平台的数据存储与处理能力,设计了基于边缘物联的自动测试架构。进一步融合多信息建立基于D-S证据理论的保护设备状态评估,提高保护设备的自动测试水平。通过边缘计算与自动测试装置形成双测试报告,在云平台建立互校机制,并对报告信息采用分级加密技术保证测试数据的安全性及可溯源性。成果应用于工程现场,有效完成了保护设备自动测试、测试报告自动生成以及分级加密,提高保护测试效率与自动化水平。

关键词: 边缘物联, 改进D-S证据理论, 自动测试, 分级加密, 报告互校

Abstract: In order to solve the problems of low automation degree of substation relay protection test and poor management of test reports, a test and control technology for protection device based on Edge IoT is proposed. Based on the data storage and processing capability of cloud platform, an automatic test architecture based on Edge IoT is designed. The state assessment of protection device based on D-S evidence theory is established by further fusing multi-source information to improve the analysis level of automatic test of protection device. The management and control system forms dual test reports through edge computing and automatic test devices, establishes a mutual correction mechanism on the cloud platform, and adopts hierarchical encryption technology for report information to ensure the security and traceability of the test data. The research is applied to the project site, realizing the automatic testing of protection device, automatic generation and hierarchical encryption of test reports, and improving the efficiency and automation of testing.

Key words: edge IoT, improved D-S evidence theory, automatic testing, hierarchical encryption, report check