高速铁路动车组网侧变流器的温升特性仿真
王成涛1韦敬2,3韩伟1张逸飞2,3齐玉文1刁利军2,3
Simulation of Temperature Rise Characteristics of High-speed Railway EMU Grid-side Converters
WANG Chengtao1WEI Jing2,3HAN Wei1ZHANG Yifei2,3QI Yuwen1DIAO Lijun2,3
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作者信息:1.中车长春轨道客车股份有限公司国家轨道客车工程研究中心，130062，长春
2.北京交通大学电气工程学院，100044，北京
3.北京交通大学载运装备多源动力系统教育部重点实验室，100044，北京
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Affiliation:1.National Engineering Research Center of Railway Vehicles, CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
2.School of Electrical Engineering, Beijing Jiaotong University, 100044, Beijing, China
3.Key Laboratory of Vehicular Multi-Energy Drive Systems of Ministry of Education, Beijing Jiaotong University, 100044, Beijing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.02.025
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中图分类号/CLCN:U266
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栏目/Col:应用技术
摘要:
［目的］网侧变流器是高速动车组牵引传动系统中的核心电气设备，其可靠性直接关系到列车的安全运行。因此，有必要对高速铁路动车组网侧变流器的温升特性进行仿真分析，探索温升与运行工况、环境条件之间的关系，为实际运行过程中的温度评估提供理论支持。［方法］研究功率器件温升特性，构建了包括功率损耗模型和热网络模型在内的电热仿真模型。功率损耗模型用于量化功率器件在不同运行状态下的损耗情况；热网络模型则结合列车运行环境条件，模拟功率器件内部热传导和散热过程。在仿真过程中，考虑了运行工况、环境温度等多种影响因素，动态分析了功率器件的温度变化趋势及其对变流器性能的影响。［结果及结论］仿真结果表明，所建立的电热仿真模型能够准确反映功率器件的温升特性。该研究结果为列车实际运行中评估网侧变流器温度变化提供了重要数据支持。
Abstracts:
［Objective］ The grid-side converter is a core electrical component in high-speed railway EMU traction drive system, and its reliability is directly related to the safe operation of the train. Therefore, it is essential to simulate and analyze the temperature rise characteristics of the grid-side converter in high-speed EMU to explore the relationship between temperature rise, operating conditions, and environmental factors, providing theoretical support for temperature evaluation during actual train operation. ［Method］ The temperature rise characteristics of power devices are examined, and an electrothermal simulation model is established incorporating the power loss model and thermal network model. The former is used to quantify the losses of power devices under different operating conditions, while the latter simulates internal heat conduction and dissipation processes of power devices considering the train′s operating environment. The simulation accounts for multiple influencing factors such as operating conditions and ambient temperature, dynamically analyzing the temperature variation trends of power devices and their impact on converter performance. ［Result & Conclusion］ Simulation results demonstrate that the established electrothermal simulation model accurately reflects the temperature rise characteristics of power devices. This research provides critical data support for evaluating temperature changes in grid-side converters during actual train operation.
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