| 摘要 |
<p>PURPOSE:To miniaturize an equipment mounted on a car body and lighten the weight of the equipment, by setting a driving motor to be a two-phase AC motor. CONSTITUTION:By an inverter composed of inverter units 51, 52, DC, voltage is converted to variable voltage and the AC voltage of variable frequency, and is fed to motors 71-74 for driving a car body. In this case, for the respective driving motors 71-74, two-phase motors are used, and each one end of their a-phase windings is connected to the AC terminal of the inverter unit 51, and each one end of their b-phase windings is connected to the AC terminal of the inverter unit 52. As a result, an equipment mounted on the car body can be miniaturized, and the weight can be lightened, and the cost can be lowered.</p> |
