基于功率动态分配的自动驾驶机车牵引电机节能控制

为了降低大功率机车牵引电机运行能耗,提出了一种基于牵引功率动态分配的机车牵引电机节能控制方法。首先,结合现场运行数据,建立牵引电机效率与其发挥牵引力及运行速度间的数学模型。然后,利用机车自动驾驶系统规划的区间速度及牵引力运行曲线,基于所建立的数学模型对不同牵引力分配策略下综合牵引电机能耗指标等进行计算,并选择最小化目标函数值的牵引力功率分配方案,控制机车各轴牵引力输出。最后,基于HX D 1型自动驾驶机车现场某条线路各区间运行数据,对所提方法进行仿真分析,验证了该方法的有效性。

Energy-Saving Control of Traction Motor for Automatic Driving Locomotive Based on Power Dynamic Distribution

In order to reduce the operating energy consumption of high-power locomotive traction motor, an energy-saving control method for locomotive traction motors based on dynamic distribution of traction power is proposed. Firstly, based on field operation data, a mathematical model between traction motor efficiency and its traction effort and running speed is established. Then, using the interval velocity and traction operating curve planned by the automatic driving system, the traction motor energy consumption under different traction distribution strategies is calculated based on the mathematical model. The traction power distribution scheme with the minimum objective function value is selected to control the traction output of each axle of the locomotive. Finally, the proposed method is simulated and analyzed based on the operating data of a certain line and each section of the HXD1 automatic driving locomotive, and the effectiveness of the method is verified.