| V/X接线牵引变压器的温升特性 |
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| 引用本文： | 韦国,闵英杰,周利军,吕玮,吴广宁.V/X接线牵引变压器的温升特性[J].中国铁道科学,2011,32(3). |
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| 作者姓名： | 韦国 闵英杰 周利军 吕玮 吴广宁 |
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| 作者单位： | 1. 西南交通大学,电气工程学院,四川,成都,610031;中国中铁电气化局集团有限公司,北京,100036
2. 西南交通大学,电气工程学院,四川,成都,610031 |
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| 基金项目： | 铁道部科技研究开发计划项目 |
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| 摘 要： | 针对V/X接线牵引变压器独特的接线方式、电气特性和负载特性,基于热电类比原理和变压器内部热传递过程建立V/X接线牵引变压器内部热路模型.参照电路理论推导温升计算微分方程,并根据热特征参量问的相互关系,建立V/X接线牵引变压器内部温升计算模型.以1台机车从驶入到驶出某V/X接线牵引变压器供电区间的过程为例,仿真计算顶层油温度曲线和绕组热点温度曲线.分析绕组绝缘寿命的影响因素,并根据牵引负荷的特点,提出适用于V/X接线牵引变压器的绝缘寿命损失计算方法.
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| 关 键 词： | V/X接线牵引变压器 热路 热点温度 绝缘寿命 |
Temperature Rise Characteristics of V/X Wiring Traction Transformer |
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| WEI Guo,MIN Yingjie,ZHOU Lijun,LU Wei,WU Guangning.Temperature Rise Characteristics of V/X Wiring Traction Transformer[J].China Railway Science,2011,32(3). |
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| Authors: | WEI Guo MIN Yingjie ZHOU Lijun LU Wei WU Guangning |
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| Abstract: | According to the unique connection mode,electrical characteristics and load characteristics,the internal thermal circuit of V/X wiring traction transformer was established based on the thermoelectricity analogy principle and the thermal transfer process in transformer.Referring to the circuit theory,the differential equation for calculating temperature rise was deduced.According to the relationships among the thermal characteristic parameters,the calculation model was constructed for the internal temperatur... |
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| Keywords: | V/X wiring traction transformer Thermal circuit Hot-spot temperature Insulation life |
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