摘要
在全球气候变化与能源结构转型的背景下,轨道交通系统低碳化发展已成为国家战略核心议题。我国《“十四五”现代综合交通运输体系发展规划》等政策明确要求轨道交通装备向电气化、智能化升级,而全SiC MOSFET器件凭借其优异性能成为突破能效瓶颈的关键技术。文章系统分析了SiC器件在轨道交通牵引及辅助变流系统中的应用优势与挑战。相较于传统Si IGBT,SiC器件通过导通压降降低、高频及耐高温特性,显著提升系统能效并实现装置轻量化。国内深圳地铁等项目验证了SiC系统在谐波抑制、动态响应优化及热管理简化方面的综合效益。然而,SiC器件的高温兼容性、驱动设计、电磁干扰及绝缘老化等问题仍需突破。文章可为国家轨道交通绿色发展战略提供技术路径与工程化参考。
In the context of global climate change and energy structure transformation,the low-carbon development of rail transit systems has become a core issue within China’s national strategies.Policies such as China's Development Plan for a Modern Comprehensive Transportation System During 14th Five-Year Plan Period explicitly call for the upgrading of rail transit equipment towards electrification and intelligence.All-SiC MOSFET devices,with their excellent performance,have been recognized as critical to breaking through the energy efficiency bottleneck.This paper systematically analyzes the advantages and challenges of applying SiC devices in rail transit traction and auxiliary converter systems.Compared to traditional Si IGBTs,SiC devices significantly improve system energy efficiency and enable lightweight designs due to their reduced on-state voltage drop,as well as high-frequency and high-temperature resistance properties.The comprehensive benefits of SiC systems have been verified in metro systems across China,such as the Shenzhen Metro,particularly in harmonic suppression,dynamic response optimization,and thermal management simplification.However,issues such as high-temperature compatibility,drive design,electromagnetic interference,and insulation aging of SiC devices still need to be addressed.The research outcomes provide technical pathways and engineering references for the green development strategy of rail transit in China.
作者
徐绍龙
胡云卿
窦泽春
李华
彭程
万伟伟
XU Shaolong;HU Yunqing;DOU Zechun;LI Hua;PENG Cheng;WAN Weiwei(Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)
出处
《机车电传动》
2025年第3期1-10,共10页
Electric Drive for Locomotives
基金
国家重点研发计划项目(2022YFB4300103)。
