| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inverter controller including a small capacity capacitor capable of optimizing the efficiency of a motor drive system by controlling a regenerative energy from a motor utilizing the motor with an increased reluctance torque ratio.SOLUTION: The inverter controller including a small capacity capacitor 32 has drive control means 6 including: a current phase difference adjustment section 14 that adjusts a phase difference of the current with respect to an induced voltage generated by a motor 5; and a power calculation part 20 that calculates the input power from the motor 5 based on the voltage output from orthogonal transforming means 4 and a current from current detection means 7. The current phase difference adjustment means performs phase adjustment so that the voltage output from the orthogonal transforming means 4 is smaller than a predetermined set value and an average value of the input power from the power calculation part 20 is a minimum value.</p> |
