Title:
POWER CONVERSION SYSTEM, AND DIAGNOSIS METHOD AND PROGRAM FOR POWER CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/189295
Kind Code:
A1
Abstract:
Provided are a power conversion system which can determine whether an abnormality occurs in a power conversion circuit, and a diagnosis method and program for the power conversion circuit. The power conversion system (1) is provided with the power conversion circuit (2), a snubber circuit (3), and a diagnosis unit (5). The power conversion circuit (2) performs power conversion and includes: a transformer (210) and switching elements Q11-Q14 which are electrically connected to the transformer (210). The snubber circuit (3) is electrically connected to the transformer (210) and absorbs electrical energy from the power conversion circuit (2). The diagnosis unit (5) diagnoses the power conversion circuit (2) on the basis of at least any one among a voltage of a terminal of the transformer (210), a voltage generated in the snubber circuit (3), and a current generated in the snubber circuit (3).
Inventors:
ASANUMA KENICHI
KUSAMA FUMITO
KUSAMA FUMITO
Application Number:
PCT/JP2020/009322
Publication Date:
September 24, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02M3/28; H02M7/48
Domestic Patent References:
| WO2018110440A1 | 2018-06-21 |
Foreign References:
| JP2005328653A | 2005-11-24 | |||
| JP2018033218A | 2018-03-01 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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