Control Device, Power Conversion Device, Control Method For Power Conversion Device, And Program

Abstract: A control device according to the present disclosure includes: a first conversion unit that performs two-phase three-phase conversion of a positive-phase d-axis current command value and a positive-phase q-axis current command value and outputs positive-phase current command values of three phases; a second conversion unit that performs two-phase three-phase conversion of a reverse-phase d-axis current command value and a reverse-phase q-axis current command value and outputs a reverse-phase current command values of three phases; an addition unit that adds the three-phase positive-phase current command values and the three-phase reverse-phase current command values and outputs current command values of three phases; an inverter control unit that controls an inverter on the basis of the three-phase current command values; and an amplitude correction unit. The amplitude correction unit calculates amplitude values of three phases from the positive-phase d-axis current command value, the positive-phase q-axis current command value, the reverse-phase d-axis current command value, and the reverse-phase q-axis current command value, and performs correction so that the amplitude of the three-phase current command values does not exceed a prescribed value when a maximum amplitude value among the amplitude values of three phases exceeds a predetermined prescribed value.

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