| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a door operation control device for modification which is inexpensive and short in modification work period by controlling both a DC motor and an AC motor. <P>SOLUTION: A door operation motor is driven by controlling a three-phase voltage type inverter 22 by the vector control. If the door operation motor is a DC motor 26, coordinates conversion circuits 66 and 73 for vector control are disconnected, the field current of the DC motor 26 is controlled by a circuit to control the exciting current component, the armature current is controlled by a circuit to control the torque current component, and the DC voltage is generated from the three-phase voltage type inverter 22 to drive the DC motor 26. If the door operation motor is an AC motor 30, the current of each phase is decomposed into the exciting current component and the torque current component, and independently controlled, and the AC motor 30 is driven by the vector control to generate the three-phase AC voltage from the three-phase voltage type inverter 22. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
