Wandlervorrichtung, Steuerungsverfahren dafür und Programm

Details

Veröffentlichungs-Nr.

EP4800907

Anmeldetag

24. Dezember 2024

Veröffentlichung

31. Juli 2025

Rechtsraum

EP

IPC

H02M7/12, H02M7/21

Abstract

In the present invention, a converter controller (25) comprises: a mode switching unit (44) that, on the basis of physical quantities that relate to a motor connected to the output side of a smoothing capacitor, selects any one among a plurality of control modes; and a switching control unit (43) that executes, as one of the plurality of control modes, a first control mode in which a positive-electrode-side switching element connected to the positive electrode side of the smoothing capacitor is put into the off state, and a period during which a negative-electrode-side switching element connected to the negative electrode of the smoothing capacitor is driven is switched in accordance with AC voltage phase, and during the drive period, the negative-electrode-side switching element is on/off controlled through a plurality of cycles to boost the voltage across the terminals of the smoothing capacitor.

Anmelder

Firma

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Land

🇯🇵 Japan

Fachgebiete