Patent ID: 9548688
Date: 2017-01-17
CPC Classifications: H02P

Claim:
1. A motor control apparatus for operating a power conversion circuit, which is connected between a direct current power source and a motor and performs mutual conversion between power at the direct current power source and power at the motor in response to a powering operation and a regenerative operation carried out by the motor, the motor control apparatus comprising: a voltage command calculator that calculates a voltage command to the power conversion circuit; a suppression gain calculator that calculates a suppression gain such that an absolute value of an estimation value of a power source current flowing into a power source circuit arranged between the direct current power source and the power conversion circuit or an absolute value of a detection value of the power source current is not more than a target value which is predetermined; and a voltage command suppressor that suppresses a voltage command by multiplying the suppression gain to the voltage command calculated by the voltage command calculator, wherein the suppression gain is a value within a range of 0 to 1.