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Acceleration Life Prediction of the Capacitor on a Traction Inverter for a High-Speed Train
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 Title & Authors
Acceleration Life Prediction of the Capacitor on a Traction Inverter for a High-Speed Train
Maeng, Heeyoung; Jung, Si-Kyo;
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The aim of this study is to develop a technique for the accelerated life test of the capacitor in a propulsion control device of a traction inverter used for a high-speed train. Using this technique, the accelerated life test can possibly estimate the life cycle of a capacitor under various temperature conditions and irregularly applied voltage. The accelerated life test is conducted for the capacitor of the traction inverter. The common proceedings of this test are selection of failure mechanism, determination of accelerated stress, range determination of the accelerated stress, determination of the test condition, and distribution and determination of the sample. From this result, the continuous applied voltage was not considered for the acceleration factors anymore. Therefore, the final result having an acceleration factor of 9.4 (= 13,626/1,445) was observed. Furthermore, the life-shortening acceleration effect for the irregular applied voltage condition can be applied to various situations.
High-speed train;Capacitor on a traction inverter;Acceleration life test;Life and exchange period prediction;Life-shortening acceleration effect;Efficiency of maintenance;
 Cited by
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