高速铁路隧道照明控制方式探讨

摘要

The control methods of high-speed railway tunnel lighting are generally divided into AC control and DC control. Because of the influence of distributed capacitance, the control distance of AC control method is limited. The DC control method can realize long distance control independence of the influence of distributed capacitance, but it fails to achieve mode control. In view of the problems of AC and DC control methods and the practical needs of high-speed railway operation, this paper puts forward an intelligent control scheme. The intelligent control scheme can not only fulfill the conventional control, but also the mode control. As a new technology of tunnel lighting control, the intelligent control sees a wide application. The paper also defines the scope of application in perspective of the principle, function and characteristics of each control method.%高速铁路隧道照明常见的控制方式一般分为交流控制及直流控制。交流控制由于受系统分布电容的影响，控制距离有一定的限制。直流控制不用考虑分布电容的影响，可实现长距离控制，但不能实现模式控制。针对交流及直流两种控制方式存在的问题，并根据高速铁路运营的实际需要，提出智能控制的方案。智能控制除具有常规控制功能外，还可实现模式控制，作为隧道照明控制的新技术，具有很好的推广前景。结合各种控制方式的原理、功能和特点，给出各种控制方式的适用范围。