Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology

Yang ZHOU; Hongqiang LYU; Huang CHEN; Junxian ZHANG; Lijie SHI

doi:10.13890/j.issn.1000-128x.2021.02.008

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Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology

Electric Traction and Control | 更新时间：2021-12-09

- Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology
- Electric Drive for Locomotives Issue 2, Pages: 42-51(2021)
- 作者机构：
  
  1.中车南京浦镇车辆有限公司，江苏　南京　210031
  2.北京交通大学　电气工程学院，北京　100044
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2021.02.008
  CLC：
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Yang ZHOU, Hongqiang LYU, Huang CHEN, et al. Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology. [J]. Electric Drive for Locomotives (2):42-51(2021)
DOI：

Yang ZHOU, Hongqiang LYU, Huang CHEN, et al. Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology. [J]. Electric Drive for Locomotives (2):42-51(2021) DOI： 10.13890/j.issn.1000-128x.2021.02.008.

摘要

为提高逻辑控制单元(LCU)的可靠性，常规的方法是采用2套设备进行系统级冗余设计。文章从技术经济性和可靠性2个方面综合考虑，在对各种冗余方案进行分析计算的基础上，提出了基于双重模块化冗余技术的优化设计方案。结合具体工况和失效模式，优化了关键模块的冗余方式，重新设计相关冗余硬件和冗余控制算法。通过搭建试验测试平台，对所设计LCU的基本运行能力、故障检测能力、冗余切换能力和通信能力进行了测试，验证了LCU在正常运行下基本功能的实现和在故障情况下对LCU运行保护的冗余切换功能，确保基于双重模块化冗余设计的LCU方案在功能上的完整性和可靠性。

Abstract

The conventional method is to use two sets of system equipment for dual redundancy design to improve the logic control unit (LCU) reliability. An optimal design scheme based on dual modular redundancy technology was proposed based on analyzing various redundancy schemes by considering economy and reliability. Combined with specific working conditions and failure modes, the redundancy mode of key modules was optimized, and the relevant redundant hardware and redundant control algorithms were redesigned. Finally, an experimental test platform was built, and the basic operation ability, fault detection ability, redundancy switching ability and communication ability of the designed LCU were tested. It was verified that the basic functions of LCU could be realized in normal operation and the protection of redundancy switching function to the operation of LCU in fault condition, which proved the functional integrity and reliability of the dual modular redundant design scheme.

关键词

地铁列车逻辑控制单元可靠性双重模块化冗余控制算法冗余切换

Keywords

metro trainLCUreliabilitydual modular redundancycontrol algorithmredundancy switch

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