机车供电对其外部照明灯具性能影响的分析

摘要

铁路机车的供电工况会对其外部照明灯具的工作性能产生显著的影响,尤其在要求恒定功率输出的情况下,灯具的光学特性和电气寿命很大程度上取决于供电电压的质量.对供电端口与照明设备可采取适当的隔离或补偿措施.即在灯具系统设计时要充分考虑减小电压波动对产品性能产生的影响,尽可能地在机车供电输出端同照明灯具输入端之间增加稳压器、稳压电路,或直接采用独立的宽范围输入、低纹波系数的供电转换模块等隔离或补偿措施,会很好地改善外部照明灯具的使用环境,从而稳定和提高其工作性能.%The power supply condition in railway locomotive has obvious impact on the working performance of the outside illuminators. The parameter of the optics and the electrical lifespan are dependent on the power supply voltage quality, espedally in the condition of constant power output. The measures of isolation or compensation between the power supply port and the illuminators could improve the working condition,stabilize and increase the working performance.