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Reliability Analysis of DC/DC Converter for High-Speed Maglev Train

机译：高速磁悬浮列车DC / DC转换器的可靠性分析

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摘要

As a new and promising mode of transportation, high-speed maglev train has attracted increasing attention. The DC/DC converter with high reliability performance plays an important role in the maglev train to provide stable and reliable output power. To improve the efficiency and logic of reliability analysis, this paper presents the forward comprehensive reliability analysis (FCRA) method, a kind of new reliability analysis method based on Fault Tree Analysis (FTA) and Fault Mode Effect and Analysis (FMEA). After analyzing the frame and principle of a DC/DC converter, a FMEA table of DC/DC converter is established based on the theoretical analysis of converter. With the FMEA table, the fault tree is constructed from the top event step-by-step in order. Finally, the paper makes qualitative and quantitative evaluations for fault tree and makes suggestion to improve the reliability of DC/DC converters. This method can effectively analyze the reliability of DC/DC converter and help with maintenance and repair work.
机译：高速磁悬浮列车作为一种新型的，有希望的交通方式，引起了越来越多的关注。具有高可靠性的DC / DC转换器在磁悬浮列车中起着重要作用，以提供稳定和可靠的输出功率。为了提高可靠性分析的效率和逻辑性，提出了一种基于故障树分析（FTA）和故障模式影响与分析（FMEA）的前向综合可靠性分析（FCRA）方法。在分析了DC / DC变换器的框架和原理后，基于变换器的理论分析，建立了DC / DC变换器的FMEA表。利用FMEA表，从头开始按顺序构建故障树。最后，本文对故障树进行了定性和定量评估，并提出了提高DC / DC转换器可靠性的建议。这种方法可以有效地分析DC / DC转换器的可靠性，并有助于维护和维修工作。

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