感应电动机无速度传感器矢量控制在铁道机车车辆传动方面的应用

铁道机车车辆牵引领域中的转矩控制是利用脉冲发生器(PG)来检测牵引感应电动机的转子频率.从提高牵引系统可靠性、降低成本和维修费用以及减小感应电动机尺寸的观点出发,最好不使用PG.为此,一直在研究把无速度传感器控制方法应用于牵引感应电动机的控制,提出了应用无速度传感器的控制策略.文章叙述了铁道机车车辆牵引的新控制方法并出示一些研究试验的结果.

Study on an Application of Induction Motor Speed Sensor less Vector Control to Railway Vehicle Traction

The Pulse Generators PGs are equipped to detect the rotor frequency of induction traction motors for the torque control in railway vehicle traction field. Elimination PGs are preferable from the view points of increasing the reliability of the traction system, reduction of the both initial and maintenance cost and down-sizing induction traction motors. Expection those merits, we have been studying to apply a sensor less control method to induction traction motor control. Prior to some reports of studies and tests to apply speed sensor-less strategy to railway vehicle, we lunched the ideas to apply the speed sensor-less control strategy. In this paper, we present the novel control method for railway vehicle traction and some results of theoretical study and tests.