Vorrichtung zur Umwandlung Elektrischer Energie

Details

Veröffentlichungs-Nr.

EP4773499

Anmeldetag

31. August 2023

Veröffentlichung

6. März 2025

Rechtsraum

EP

IPC

H02M7/49

Abstract

A power conversion device includes a power converter including a plurality of converter cells connected in series. Each converter cell includes a switching circuit including a plurality of first switching elements connected in series, a power storage element (28) connected in parallel to the switching circuit, a control circuit to control the switching circuit, and a power feeding circuit (30) to generate a control voltage which is based on a voltage of the power storage element (28), using a second switching element (53) and a transformer (56), and supply the control voltage to the control circuit. When the voltage of the power storage element (28) becomes equal to or more than a first threshold value in a state where control of the switching circuit is not started by the control circuit, the power feeding circuit (30) controls a switch (32) connected in series to a resistor (31) for discharging the power storage element (28) to be in an ON state such that a discharging current flows to the resistor (31).

Anmelder

Firmen

MITSUBISHI ELECTRIC CORPORATION
TMEIC Corporation

Land

🇯🇵 Japan