Leistungsumwandlungsvorrichtung und -Programm

Details

Veröffentlichungs-Nr.

EP4727005

Anmeldetag

10. Mai 2024

Veröffentlichung

12. Dezember 2024

Rechtsraum

EP

Abstract

A power conversion device includes: a high-potential-side path (22H) electrically connecting a first power storage (31) and an upper arm switch (SWH); a low-potential-side path (22L) electrically connecting a second power storage (32) and a lower arm switch (SWL); a power-storage-to-power-storage switch (50); a bypass switch (60, 61); a connection path (73); a neutral point capacitor (74, 75); a current sensor (84, 83) detecting a current flowing through the connection path or a current flowing through an armature winding (11); and a controller (100). The controller performs a temperature rise control in which to cause a ripple current to flow through the first and second power storages, at least one of the upper and lower arm switches is switched in a state where the bypass switch is on and the power-storage-to-power-storage switch is off, and determines whether an abnormality in the temperature rise control occurs based on a detection value of the current sensor during the temperature rise control.

Anmelder

Firma

DENSO CORPORATION

Land

🇯🇵 Japan