| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control device and method capable of performing continuous normal operation without making an overcurrent flow to a motor, even if the motor is rotated at high speed. <P>SOLUTION: A d-axis current command generator 16 inputs a bus voltage Ebus from a bus voltage detector 4, inputs a d-axis voltage command vd* and a q-axis voltage command vq* from a current controller 12, generates an output voltage command of an inverter 5 from the bus voltage Ebus, calculates an output voltage of an inverter 5 from the d-axis voltage command vd* and the q-axis voltage command vq*, performs PI-control so that a difference of the output voltage of the inverter 5 becomes zero, generates a negative d-axis current command id* so that the output voltage of the inverter 5 is not brought into a saturated state, and then outputs the generated d-axis current command id* to the current controller 12. <P>COPYRIGHT: (C)2010,JPO&INPIT |
