| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase an output of an electric motor whose armature coil linkage flux amount can be adjusted, during both power running and regeneration of the electric motor in a motor drive device for driving the electric motor. <P>SOLUTION: A motor drive device drives a motor generator 130 having a rotor with a field winding L1, and a stator. The motor drive device includes a power supply unit 110, a converter 115, an inverter 120, and an ECU 300. The converter 115 has a reactor, and is configured to convert a voltage from the power supply unit 110 and also to supply a field current during the voltage converting operation, by sharing the field winding L1 as at least a part of the reactor. The inverter 120 converts an electric power supplied from the converter 115 to drive the motor generator 130. The ECU 300 controls the converter 115 so that a current flowing in the field winding L1 flows in the same direction during both a power running and regeneration of the motor generator 130. <P>COPYRIGHT: (C)2012,JPO&INPIT |
