摘要
本论文主要探讨了地铁供电系统的电能质量保障问题及其优化对策。首先概述了地铁供电系统的定义、特点及基本组成，明确了其作为地铁运行关键基础设施的重要性。随后，阐述了地铁供电系统电能质量保障的重要性，包括确保列车运行安全、延长设备使用寿命以及维护电网稳定等方面。通过对地铁供电系统电能质量问题的深入分析，揭示了设备发热、频率偏移、谐波产生源多样以及电压不平衡等主要问题。针对这些问题，论文提出了相应的优化对策，包括加强散热设计以减少设备发热，采用频率稳定装置来应对频率偏移，使用谐波抑制设备抑制谐波污染，以及采用动态电压调节装置来解决电压不平衡问题。这些对策的实施，旨在提升地铁供电系统的电能质量，确保地铁列车的安全高效运行，为地铁系统的可持续发展提供有力保障。
关键词 地铁供电系统；电能质量；影响因素
Abstract
This paper mainly discusses the guarantee of power quality of subway power supply system and its optimization countermeasures. Firstly, the definition, characteristics and basic composition of subway power supply system are summarized, and its importance as the key infrastructure of subway operation is clarified. Subsequently, the importance of the power quality assurance of the subway power supply system is expounded, including ensuring the safety of the train operation, extending the service life of the equipment and maintaining the stability of the power grid. Through the in-depth analysis of the power quality problems of the subway power supply system, the main problems of equipment heating, frequency shift, diverse harmonic generation sources and voltage imbalance are revealed. In view of these problems, the paper puts forward the corresponding optimization countermeasures, including strengthening the heat dissipation design to reduce the equipment heating, using frequency stabilization device to deal with the frequency offset, using harmonic suppression equipment to suppress harmonic pollution, and using dynamic voltage regulation device to solve the problem of voltage imbalance. The implementation of these countermeasures aims to improve the power quality of the subway power supply system, ensure the safe and efficient operation of the subway trains, and provide a strong guarantee for the sustainable development of the subway system.
Keywords Subway power supply system; power quality and influencing factors
目录
摘要 I
Abstract II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
1.3 国内外研究现状 2
第2章 地铁供电系统相关概述 3
2.1 地铁供电系统的定义 3
2.2 地铁供电系统的特点 3
2.3 地铁供电系统的基本组成 4
第3章 地铁供电系统电能质量保障的重要性 5
3.1 确保列车运行安全 5
3.2 延长设备使用寿命 5
3.3 维护电网稳定 6
第4章 地铁供电系统电能质量问题分析 7
4.1 设备发热 7
4.2 频率偏移 7
4.3 谐波产生源多样 8
4.4 电压不平衡 8
第5章 地铁供电系统电能质量保障的优化对策 9
5.1 加强散热设计 9
5.2 采用频率稳定装置 9
5.3 使用谐波抑制设备 10
5.4 采用动态电压调节装置 10
结论 12
参考文献 13
致谢 14
