Experiments on the differential-gear-less power train of electrical vehicles and study on the low speed sensorless control

搭建了24kW反向双回转电机样机。由于预算的限制，电动汽车模拟器取代了改装后的汽车。利用该电动汽车模拟器对几种驾驶条件进行了测试，例如通过所提出的牵引力控制抑制了一个转子的打滑。对低速无速度传感器控制进行了研究，实现了5rpm的转速控制。在不向一次电流注入任何信号的情况下，提出了二次电阻估计算法。

The prototype of the 24 kw anti-directional-twin-rotary-motor was constructed. Due to the budget limitation, the elctrical vehicle (EV) simulator was constructed in stead of the converted vehicle. Using this EV simulator several driving conditions were tested, and for example the slipping of one rotor was suppressed by the proposed traction control. The low speed sensorless control was investigated, and 5 rpm was achieved. Also the secondary resistance estimation algorithm was proposed without injecting any signal to the primary current.