Inverter device with a control unit

摘要

An inverter device includes: a step-up circuit; an inverter circuit; a control unit for controlling the step-up circuit and the inverter circuit; and a reactor provided on an electric path for outputting the converted AC power to an AC system. An output current target value is calculated based on an input power value of DC power and a voltage value of the AC system, and a current target value and a voltage target value for the inverter circuit are calculated based on the output current target value, to control the inverter circuit. A current target value for the step-up circuit is calculated based on a current target value and a voltage target value that are common with the inverter circuit, and on a DC input voltage value, to control the step-up circuit. Thereby, output of the AC power is controlled.

主权项

1. An inverter device connected to an AC system via a reactor, the inverter device comprising:
a conversion unit configured to convert DC power outputted from a power supply, to AC power, and output the converted AC power to the AC system via the reactor; and a control unit configured to control the conversion unit, wherein the conversion unit includes:
a step-up circuit configured to step up a DC input voltage value of the DC power; andan inverter circuit configured to convert power given from the step-up circuit, to AC power, and the control unit
calculates an output current target value based on an input power value of the DC power and a voltage value of the AC system, and calculates a current target value and a voltage target value for the inverter circuit based on the output current target value, to control the inverter circuit, andcalculates a current target value for the step-up circuit based on a current target value and a voltage target value that are common with the inverter circuit, and on the DC input voltage value, to control the step-up circuit, andthereby controls output of the AC power.