| 摘要 |
PROBLEM TO BE SOLVED: To provide a voltage conversion device which improves controllability of a load.SOLUTION: A control section 50 of the voltage conversion device by which a voltage of a battery is boosted and outputted to an inverter, includes a feedback calculation part 20, a feedforward calculation part 30, and a duty correction value calculation part 40. The control section 50 calculates a duty command value duty for controlling drive of a step-up drive section 15 by adding a feedback term dfb calculated by the feedback calculation part 20, a feedforward term dff calculated by the feedforward calculation part 30 and a duty correction value dcr calculated by the duty correction value calculation part 40 on the basis of an input voltage Vin, a system voltage Vsys and a command voltage Vcom. Thus, in comparison with the case where the duty command value is calculated from the feedback term and the feedforward term, a variation of the system voltage Vsys that the step-up drive section 15 outputs to the inverter, can be reduced. |
