| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vector control device of an induction motor which is can accurately tuning the constant of the induction motor even when a load is coupled to the induction motor and which involves only simple operation for achieving the measurement operation method. <P>SOLUTION: The motor is operated at an optional speed in an optional load state, and at least a mutual inductance, among the mutual inductance and a no load current of the motor, is determined at an optional time by using an output frequency, a d-axis voltage command, a q-axis voltage command, a d-axis detected current value, a q-axis detected current value, a base voltage of the motor, a base frequency, a primary resistance value and a leakage inductance. <P>COPYRIGHT: (C)2011,JPO&INPIT |
