| 摘要 |
PROBLEM TO BE SOLVED: To resolve a problem that a conventional art is likely to be affected by current ripples and phase variation, and there is a room for improvement in terms of identification accuracy of an inductance and an induction voltage constant.SOLUTION: A motor drive device comprises: d-axis current command calculation means correcting a first d-axis current command value to generate a second d-axis current command value; q-axis current command calculation means correcting a first q-axis current command value to generate a second q-axis current command value; voltage command calculation means calculating a d-axis voltage command value and a q-axis voltage command value; inverter control means controlling an inverter circuit; identification mode control means fixing the first d-axis current command value to a predetermined setting value; inductance identification means making the inductance setting value be used for the calculation at the voltage command calculation means; recording means recording an inductance value and an induction voltage constant value arbitrarily identified by the identification mode control means; and comparison and control means comparing and controlling the recorded inductance identification value and the recorded induction voltage identification value. |
