Optimal Design of Metro Train Logic Control Unit Based on Dual Modular Redundancy Technology
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 re...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2021-03-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2021.02.008 |
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| Summary: | 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. |
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| ISSN: | 1000-128X |