| 引用本文: | 刘飞,解绍锋,侯东光,周婷,张晓芳.基于器件结温的同相补偿变流器可靠性评估[J].电力自动化设备,2018,(1): |
| LIU Fei,XIE Shaofeng,HOU Dongguang,ZHOU Ting,ZHANG Xiaofang.Reliability evaluation of co-phase compensation converter based on junction temperature of devices[J].Electric Power Automation Equipment,2018,(1): |
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| 摘要: |
| 以5 MW模块化同相补偿变流器为例，基于同相补偿变流器的相关电热参数，建立变流器整流侧和逆变侧IGBT模块的结温仿真模型，分析同相补偿变流器在额定工况时的损耗和结温。结合实测的高速铁路和重载铁路牵引负荷数据，利用Bayerer模型和线性疲劳累积损伤理论评估全时补偿和需时补偿下同相补偿变流器的可靠性。研究结果表明，由于高速铁路和重载铁路2种牵引负荷波动程度的不同，重载铁路全时补偿和需时补偿下变流器故障率的差异远低于高速铁路全时补偿和需时补偿下变流器故障率的差异。同时针对重载铁路负荷，提出了一种新的能提高同相补偿变流器可靠性的运行方式。 |
| 关键词: 组合式同相供电 同相补偿变流器 结温 可靠性评估 运行方式 |
| DOI：10.16081/j.issn.1006-6047.2018.01.022 |
| 分类号:U224.8;TM46 |
| 基金项目:国家自然科学基金资助项目(51307143)；中央高校基本科研业务费专项资金资助项目(2682015ZD03)；中国铁路总公司重点科技项目(2015J005-A)；广州地铁设计研究院有限公司项目 |
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| Reliability evaluation of co-phase compensation converter based on junction temperature of devices |
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LIU Fei1, XIE Shaofeng1, HOU Dongguang1, ZHOU Ting1, ZHANG Xiaofang2
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1.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;2.Wenzhou Mass Transit Railway Investment Group Co.,Ltd.,Wenzhou 325000, China
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| Abstract: |
| Taking the 5 MW modular co-phase compensation converter as an example, the simulation model of the junction temperature of the rectifier-side and inverter-side IGBT module is established based on the relevant electric and heat parameters of the co-phase compensation converter, and the power loss and junction temperature of co-phase compensation converter under rated operating conditions are analyzed. Combined with the measured traction load data of high-speed railway and heavy-haul railway, the Bayerer model and the linear fatigue cumulative damage theory are used to evaluate the reliability of co-phase compensation converter under full time compensation and required time compensation. The results show that the difference of converter failure rate of heavy-haul railway is far lower than that of high-speed railway under full time compensation and required time compensation, due to different fluctuation degrees of the two kinds of traction loads. At the same time, a new operation mode is proposed to improve the reliability of co-phase compensation converter for heavy-haul railway loads. |
| Key words: combined co-phase power supply co-phase compensation converter junction temperature reliability assessment operation mode |
