厦门地铁1号线辅助供电系统相电流不平衡故障分析与改进
刘超张红星高兴华王景波
Analysis and Improvement of Phase Current Imbalance Fault of Xiamen Metro Line 1 Auxiliary Power Supply System
LIU ChaoZHANG HongxingGAO XinghuaWANG Jingbo
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作者信息:中车唐山机车车辆有限公司，063035，唐山∥第一作者，高级工程师
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Affiliation:CRRC Tangshan Co., Ltd., 063035, Tangshan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.01.040
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中图分类号/CLCN:U231.8
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栏目/Col:应用技术
摘要:
针对厦门地铁1号线运营过程中发生的辅助供电系统相电流不平衡故障问题，从网络系统控制并网供电逻辑、辅助供电系统诊断功能等角度进行分析。结果表明，中压母线车端连接器缩针是导致辅助供电系统相电流不平衡故障的根本原因。并提出了辅助供电系统分为两个车辆单元分别控制并网的认进方案。
Abstracts:
Aiming at the phase current imbalance fault of the auxiliary power supply system that occurred during Xiamen Metro Line 1 operation, by analyzing from the angles of grid connected power supply logic and diagnostic functions of auxiliary power supply system, the real cause of the phase current imbalance is obtained. Results show that the medium voltage bus line vehicle-end connector needle is the root cause of the auxiliary power supply system phase current imbalance fault, and optimization scheme is proposed, in which the auxiliary power supply system is divided into two vehicle units to control grid connection respectively.
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