| 摘要 |
PROBLEM TO BE SOLVED: To suppress noise derived from torque ripple generated at an inverter frequency.SOLUTION: An inverter control device according to an embodiment outputs a first torque current command value and a first excited current command value for controlling an inverter on the basis of a received notch command. When a notch command OFF is input, the inverter control device measures elapsed time. If the notch command OFF is input, the inverter control device outputs a second torque current command value changed from the first torque current command value at a preset decrement. If this second torque current command value matches a third torque current command value for outputting a preset torque, the inverter control device outputs this third torque current command value. When the measured elapsed time reaches preset time while the inverter control device outputs the second torque current command value or the third torque current command value, the inverter control device turns off a gate command to the inverter. |
