提出了直流牵引电机机车粘着控制的新方法。

This paper presents a new approach on adhesion control of locomotive with Dc motors.

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笔者结合工作实践，介绍了直流牵引电机常见故障的诊断和排除方法，以实例剖析了诊断故障的步骤。

The trouble diagnosis work is systematic and complex. Based on author's experience, the common trouble shooting method of direct - current motors is discussed and an example is given.

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结合TAO649D机车牵引电机的结构参数，首先建立了该直流电机的数学模型，设计了该电机的转速，电流双闭环系统。

Combined with the structural parameters of TAO649D traction motor, the mathematic model of the DC motor is built and its speed and current dual-closed-loop system is designed.

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