摘要
牵引供电系统的运行状态具有高度的实时动态性,而现有评估方法在反映这些实时变化方面存在局限性,可能导致评估结果不准确。为准确评估轨道交通能馈式牵引供电装置的能量回收利用效率,文章设计并研究了一套新的评估方法。从技术性能、经济效益和环境效益3个维度选择评估指标,并建立评估体系。通过引入熵权法,实现对评估指标的权重分配,最后得到能量回收利用效率综合得分,划分利用效率等级实现对其直观评估。实例结果表明,该评估方法能够精确衡量装置的能量回收利用效率。相较于既有方法,新的评估方法在实际得分中表现出明显优势,其评估结果可为轨道交通中能馈式牵引供电装置性能优化提供可靠依据。
The operational state of the traction power supply system is highly dynamic and time-varying.However,existing evaluation methods exhibit limitations in capturing these real-time variations,potentially leading to inaccurate assessment results.To accurately evaluate the energy recovery efficiency of regenerative traction power supply devices in rail transit,this paper proposes a novel evaluation method.Evaluation indicators are selected from three dimensions-—technical performance,economic benefits,and environmental benefits—to establish a comprehensive evaluation system.By introducing the entropy weight method,the weights of the evaluation indicators are objectively assigned,resulting in a composite score for energy recovery efficiency.Efficiency grades are defined to enable intuitive assessment.Case study results demonstrate that the proposed method accurately measures the energy recovery efficiency of the device.Compared with existing methods,the new approach shows significant advantages in actual scoring,and its evaluation results provide a reliable basis for performance optimization of regenerative traction power supply systems in rail transit.
作者
刘伟中
LIU Weizhong(Line 5 Operation Branch,Kunming Metro Operation Co.,Ltd.,Kunming 650504,China)
出处
《智慧轨道交通》
2026年第1期8-12,共5页
INTELLIGENT RAIL TRANSIT
关键词
轨道交通
牵引
能量回收
供电装置
能馈式
rail transit
traction
energy recovery
power supply device
regenerative
