US 12,438,459 B2
Control device, power conversion device, and control method
Mitsuhiro Takada, Tokyo (JP); and Ryotaro Harada, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/574,181
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jul. 30, 2021, PCT No. PCT/JP2021/028421
§ 371(c)(1), (2) Date Dec. 26, 2023,
PCT Pub. No. WO2023/007721, PCT Pub. Date Feb. 2, 2023.
Prior Publication US 2024/0243661 A1, Jul. 18, 2024
Int. Cl. H02M 3/156 (2006.01)
CPC H02M 3/156 (2013.01) 20 Claims
OG exemplary drawing
 
1. A control device for controlling one or more switching elements included in a power conversion circuit that converts supplied power into power to be supplied to load devices and supplies the power resulting from the conversion to the load devices, the control device comprising:
a target voltage outputting circuitry to output a target voltage that is a target value of output voltage of the power conversion circuit; and
an element control circuitry to control the one or more switching elements in accordance with the target voltage,
wherein upon acquisition of an operation command that provides an instruction for startup of the power conversion circuit, the target voltage outputting circuitry raises the target voltage to a startup voltage that is below a rated voltage range of the power conversion circuit, and
in a case where at least one of the load devices starts up after acquisition of the operation command, the target voltage outputting circuitry raises the target voltage to an operating voltage that is greater than the startup voltage and is within the rated voltage range of the power conversion circuit.