| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the deterioration of the accuracy of the temperature correction of a rotor resistor and improve the accuracy of the output torque of an induction machine. <P>SOLUTION: The drive system of the induction machine comprises an induction machine 111, an inverter device 112 that converts DC power fed from a battery 101 to AC power and feeds the AC power to the induction machine 111, a control device 103 that controls the drive of the inverter device 112, and a temperature sensor 105 that detects the stator temperature of the induction machine 111. The control device 103 calculates a current command value for vector-controlling the induction machine 111, generates a drive signal of the inverter device 112 based on the calculation, estimates the rotor temperature of the induction machine 111 based on the stator temperature, estimates the rotor resistance value of the induction machine 111 based on the preceding estimation, and sets the rotor resistance value as a correction value of the operation of the current command value. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
