Title:
DAB SYSTEM BIDIRECTIONAL INSULATION TYPE DC/DC CONVERTER AND CONTROL METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2023037119
Kind Code:
A
Abstract:
To improve the efficiency of a DAB system bidirectional insulation type DC/DC converter, which has one end connected in series and the other end connected in parallel, on the whole device.SOLUTION: A DAB system bidirectional insulation type DC/DC converter comprises a primary-side DC power supply DC1, a secondary-side DC power supply DC2, and a first unit to an (m)th (m: an integer equal to or larger than 2) unit connected between the primary-side DC power supply DC1 and secondary-side DC power supply DC2. Primary-side DC capacitors C1 of the first unit to the (m)th unit are connected to the primary-side DC power supply DC1 in series. Secondary-side DC capacitors C2 of the first unit to the (m)th unit are connected to the secondary-side DC power supply DC2 in parallel. A balance control part which controls voltage balance of the primary-side DC capacitors controls primary-side DC capacitor voltages of the respective units so that they are not uniform, but deviate.SELECTED DRAWING: Figure 2
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Inventors:
OI KAZUNOBU
Application Number:
JP2021143666A
Publication Date:
March 15, 2023
Filing Date:
September 03, 2021
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02M3/28
Attorney, Agent or Firm:
Hiromichi Kobayashi
Kiyoshi Tomioka
Hidehisa Uzawa
Tomoyuki Ota
Kiyoshi Tomioka
Hidehisa Uzawa
Tomoyuki Ota