全球能源互联网（英文）2023，Vol.6Issue(6)：772-784,13.DOI:10.1016/j.gloei.2023.11.010
基于保测合智纵向集成装置的可靠性分析
Reliability analysis for vertical integration of protection,measurement,merge unit,and intelligent terminal device
摘要
Abstract
The reliability analysis of vertically integrated protection devices is crucial for designing International Electrotechnical Commission(IEC)61850-based substations.This paper presents the hardware architecture of a four-in-one vertically integrated device and the information transmission path of each function based on the functional information transmission chain of protection devices,measurement and control devices,merging units,and intelligent terminals.Additionally,a reliability analysis model of the protection device and its protection system is constructed using the fault tree analysis method while considering the characteristics of each module of the vertically integrated device.The stability probability of the protection system in each state is analyzed by combining the state-transfer equations of line and busbar protection with a Markov chain.Finally,the failure rate and availability of the protection device and its protection system are calculated under different ambient temperatures using a 110 kV intelligent substation as an example.The sensitivity of each device module is analyzed.关键词
二次系统装置的纵向集成/二次系统的可靠性/基于IEC 61850的变电站/继电保护Key words
Vertical integration of secondary system device/Reliability of secondary system/IEC 61850-based substation/Relay protection引用本文复制引用
李颖,王维权,张良,梁柱坚,徐真理,梁远升..基于保测合智纵向集成装置的可靠性分析[J].全球能源互联网（英文）,2023,6(6):772-784,13.基金项目
This study was supported by the 2020 Infrastructure Engineering Technology Innovation Project and the"Intelligent Substation"Supporting Technology Research Project(031200WS22200001). （031200WS22200001）
