一种基于信号原理的电力机车自动过分相研究

Study on a kind of Electric Locomotive's Automatic Passing Neutral Section based on Signal Principle

为解决线路坡道对传统自动过分相牵引卸载时机的影响,提出一种基于机车自主测速定位以及各种速度-距离曲线,结合机车移动授权、线路坡道、机车工况,实时判断分相预告点,动态计算牵引卸载时延的方法。该方法能够消除坡道对机车动能的影响,满足机车在过分相点及时卸载牵引的要求,其控制性能优于传统自动过分相方法。

In order to deal with line grade＇s influence on the time of traction unloading during the process of traditional automatic neutral section passing, a method which can determine the fore- casting point of neutral section passing in a real-time manner and calculate the delay time of trac- tion unloading dynamically based on autonomous locomotive velocity and position as well as loco- motive velocity-distance curves in combination of locomotive＇s movement authorization, line grade and locomotive working conditions is proposed. This method can eliminate the impact of line grade on locomotive kinetic energy and meet the requirement of traction unloading when the loco- motive passing a neutral section. Hence, its performance is superior to those of traditional auto- matic neutral section passing.