Title:
POWER CONVERSION DEVICE FOR RAILWAY VEHICLES
Document Type and Number:
WIPO Patent Application WO/2023/021646
Kind Code:
A1
Abstract:
A power conversion device (100) for railway vehicles comprises: an inverter (3) that converts DC power into AC power for a drive motor (6); and a control unit (8) that controls the operation of the inverter (3). The inverter (3) comprises: a power module (31) that is equipped with a plurality of switching elements (33); a cooler (32) that cools the power module (31); and a cooling blower (34) that supplies cooling air to the cooler (32). The control unit (8) controls the rotation speed of the cooling blower (34) on the basis of first information related to a rise in the temperature of the power module (31).
Inventors:
KONAGA KOSUKE (JP)
Application Number:
PCT/JP2021/030331
Publication Date:
February 23, 2023
Filing Date:
August 19, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/48; B60L3/00; H05K7/20
Foreign References:
| JP2015226407A | 2015-12-14 | |||
| JP2019057455A | 2019-04-11 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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