摘要
枢纽牵引变电所需要为多条高铁供电,对其供电可靠性、供电能力要求高,因此优化完善铁路枢纽供电方式极为重要。以我国铁路首座已投用的广州白云枢纽全备用新型变电所为例,从设计源头、设备选型、施工质量控制等方面总结创新实践经验。在设计源头方面,通过采用全备用方案、优化母线分段设计、采用双系统在线运行,提升供电灵活性、可靠性和稳定性;在设备选型方面,通过采用户内布置、组合电器、无人值守方式等,减少外部环境影响,实现关键设备免维护、少维护;在工艺工法方面,通过运用BIM技术、优化电缆室布置、采用标准化新工艺,提升施工质量和系统安全性。优化后的全备用牵引变电所具有设计理念先进、高可靠性、满足“互备互供”要求等优点,对类似枢纽变电所的建设具有重要参考意义。
Given that a hub traction substation supplies power to multiple high-speed rail lines,it demands extremely high power supply reliability and capacity.Therefore,optimizing and improving the power supply mode for railway hubs is of critical importance.Taking the first fully redundant new substation in China railway,which has been put into operation at the Guangzhou Baiyun Hub,as an example,this paper summarizes innovative practical experiences from aspects such as design concept,equipment selection,and construction quality control.In terms of design concept,the adoption of a fully redundant scheme,optimized busbar segmentation design,and dual-system online operation enhances power supply flexibility,reliability,and stability.In terms of equipment selection,the use of indoor layouts,combined electrical apparatus,and unattended operation mode achieves maintenance-free or low-maintenance of key equipment,reducing the impact of external environmental factors.In terms of construction processes and techniques,the application of BIM technology,optimized cable room layout,and standardized new processes improves construction quality and system safety.The optimized fully redundant traction substation features advanced design concepts,high reliability,and meets the requirements of“mutual backup and supply”,providing important insights for the construction of similar hub substations.
作者
张利洪
夏煜基
ZHANG Lihong;XIA Yuji(Power Supply Department,China Railway Guangzhou Group Co.,Ltd.,Guangzhou Guangdong 410034,China)
出处
《铁路技术创新》
2025年第5期134-140,共7页
Railway Technical Innovation
关键词
枢纽供电
广州白云枢纽
全备用新型牵引变电所
供电方式
设备选型
施工质量控制
hub power supply
Guangzhou Baiyun Hub
fully redundant new traction substation
power supply mode
equipment selection
construction quality control
