| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive controller and a drive control method which improve controllability of a motor when switching among voltage control systems. <P>SOLUTION: A drive controller comprises: a storage unit 37 storing a map that represents a boundary between a first region in which a first voltage command used for a drive control of a motor is generated by a first method and a second region in which a second voltage command used for the drive control is generated by a second method, by a rotation number of the motor and a torque command value; a voltage command generating unit which generates the first voltage command by the first method and generates the second voltage command by the second method when a working point of the motor determined by the rotation number and the torque command value is within a prescribed switching region including the boundary; and a drive control unit 30 by which the drive control of the motor is performed by the first voltage command when switching from the second method to the first method is needed, and by which the drive control of the motor is performed by the second voltage command when switching from the first method to the second method is needed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
