中低速磁浮车辆悬浮控制器可靠性优化设计研究
陈启发姜宏伟罗华军
Research on Design Optimization of Levitation Controller Reliability for Medium-low Speed Maglev Vehicles
CHEN QifaJIANG HongweiLUO Huajun
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作者信息:1.中车株洲电力机车有限公司，412001，株洲
2.磁浮交通车辆系统集成湖南省重点实验室，412001，株洲
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Affiliation:1.CRRC Zhuzhou Locomotive Co., Ltd., 412001, Zhuzhou, China
2.Key Laboratory of Maglev Vehicle System Integration of Hunan Province, 412001, Zhuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.09.055
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中图分类号/CLCN:U266.4
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栏目/Col:应用技术
摘要:
［目的］悬浮控制器是中低速磁浮车辆的关键部件，其可靠性直接影响中低速磁浮车辆悬浮系统的稳定性及可靠性，需对悬浮控制器的可靠性进行优化。［方法］以单个悬浮电磁铁(内含2个悬浮控制器)为研究对象，分析了悬浮控制器的可靠性，建立了悬浮控制器的可靠性模型，开展了悬浮控制器故障树分析，找出影响悬浮控制器的关键因素。提出了悬浮控制器的优化方案，将单个悬浮电磁铁内含的2个悬浮控制器优化为1个悬浮控制器,并对部分关键部件进行了冗余设计。基于优化后悬浮控制器的电路原理，建立了优化后悬浮控制器的可靠性模型及故障树模型，并对悬浮控制器优化前后的可靠性进行对比分析。［结果及结论］与优化前单个悬浮电磁铁中2个悬浮控制器的总失效率(2.282×10-6 h-1)相比，优化后单个悬浮电磁铁悬浮控制器的失效率为1.064×10-6 h-1，失效率降幅为53.37%。优化后悬浮控制器的可靠度明显高于优化前悬浮控制器的可靠度。
Abstracts:
［Objective］ Levitation controller is a key component of the medium-low speed maglev vehicle, and its reliability directly affects the stability and reliability of the vehicle′s levitation system. Therefore, it is necessary to improve the reliability of the levitation controller. ［Method］ With a single levitation electromagnet containing two levitation controllers as the research object, through analyzing the reliability of the levitation controller, its reliability model is established, and a fault tree analysis is conducted to identify the key factors influencing the levitation controller. By transforming two levitation controllers in the single levitation electromagnet into one levitation controller, an optimization scheme for the levitation controller is proposed, together with the redundant design for some key components. Based on the circuit principle of the optimized levitation controller, a reliability model and a fault tree model for the optimized levitation controller are established, and comparison analysis is conducted on the reliability of the levitation controller before and after the optimization. ［Result & Conclusion］ Compared with the levitation controller before optimization when a single levitation electromagnet contains two levitation controllers, the total failure rate of which is 2.282×10-6/h-1, the rate of an optimized single levitation electromagnet levitation controller is 1.064×10-6/h-1, a decrease of 53.37%. The reliability of the optimized levitation controller is significantly higher than that of the original one.
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