Research on reliability allocation method for train network control system

HE Renwei; ZHAO Pu; ZHANG Xuefang

doi:10.13890/j.issn.1000-128X.2024.04.020

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Research on reliability allocation method for train network control system

Electric Traction and Control | 更新时间：2024-09-12

- Research on reliability allocation method for train network control system
- Electric Drive for Locomotives Issue 4, Pages: 163-170(2024)
- 作者机构：
  
  北京市地铁运营有限公司，北京 100044
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.04.020
  CLC： U231
- Published：10 July 2024，
  
  Received：01 August 2023，
  
  Revised：23 April 2024，
- 稿件说明：
移动端阅览
何人伟, 赵镤, 张学方. 列车网络控制系统的可靠性分配方法研究[J]. 机车电传动, 2024(4): 163-170.

HE Renwei, ZHAO Pu, ZHANG Xuefang. Research on reliability allocation method for train network control system[J]. Electric drive for locomotives,2024(4): 163-170.
何人伟, 赵镤, 张学方. 列车网络控制系统的可靠性分配方法研究[J]. 机车电传动, 2024(4): 163-170. DOI：10.13890/j.issn.1000-128X.2024.04.020.

HE Renwei, ZHAO Pu, ZHANG Xuefang. Research on reliability allocation method for train network control system[J]. Electric drive for locomotives,2024(4): 163-170. DOI：10.13890/j.issn.1000-128X.2024.04.020.

摘要

列车网络控制系统的可靠性设计与分配在权衡方案利弊、找出影响系统可靠性薄弱环节、促进设计改进等方面有非常重要的指导意义。文章从列车网络控制系统可靠性需求分析出发，研究了计算网络拓扑可靠性的理论技术，提出针对列车网络控制系统冗余架构的网络拓扑状态转移模型，并基于马尔可夫过程推导出网络拓扑可靠性计算的数学表达式；在此基础上，结合复杂度、技术发展水平、重要度、环境条件等影响因素，提出采用评分分配法进行系统部件的可靠性分配方法。最后，以实际应用项目为输入，验证了列车网络控制系统可靠性计算与分配方法。该方法有助于依据实际项目应用对网络控制系统的RAMS分配指标，设计列车网络控制系统拓扑结构，并给出RAMS设计合理性论证方法。

Abstract

The reliability design and allocation for train network control systems play a significant guiding role in evaluating the advantages and disadvantages of different options

identifying weak links affecting system reliability

and promoting design improvements. This study analyzed reliability requirements for train network control systems and investigated theoretical technologies for calculations related to network topology reliability. On this basis

a network topology state transfer model for the redundant architecture of train network control systems was developed

and a mathematical expression for network topology reliability calculations was deduced from the Markov process. Furthermore

a scoring-based reliability allocation method for system components were proposed

considering multiple influencing factors

including complexity

technical development levels

importance

and environmental conditions. Finally

the proposed reliability calculation and allocation method for train network control systems was verified

based on inputs from practical applications. This approach has proven beneficial for topology design in train network control systems according to their RAMS allocation indexes in real-world projects and offers a basis for rationality demonstration of RAMS design.

关键词

列车网络控制系统网络拓扑可靠性计算可靠性分配

Keywords

train network control systemnetwork topologyreliability calculationreliability allocation

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