基于边缘物联的电力系统二次继保设备测试管控技术

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

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。

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.