Title:
CONTROL DEVICE, SYSTEM, CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/054074
Kind Code:
A1
Abstract:
With conventional technology there is a risk of an overvoltage occurring between a DC/DC converter and an inverter as a result of a system malfunction or the like. Provided is a control device provided with a direct-current bus which is maintained at a reference voltage by means of the exchange of electric power with an inverter, a first control unit which controls at least one of a plurality of DC/DC converters provided respectively between the direct-current bus and a plurality of direct-current power sources that supply direct-current power to the direct-current bus, and a voltage measuring unit which measures the voltage of the direct-current bus, wherein the first control unit reduces the output power of only some of the plurality of DC/DC converters if the voltage of the direct-current bus exceeds a threshold voltage that is higher than the reference voltage.
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Inventors:
MARUYAMA KOJI (JP)
FUJITA SATORU (JP)
NAGANO TSUYOSHI (JP)
FUJITA SATORU (JP)
NAGANO TSUYOSHI (JP)
Application Number:
PCT/JP2020/032376
Publication Date:
March 25, 2021
Filing Date:
August 27, 2020
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD (JP)
International Classes:
H02J7/35; H02J1/00; H02J3/32; H02J3/38
Foreign References:
JP2017175888A | 2017-09-28 | |||
JP2006129585A | 2006-05-18 | |||
JP2003339118A | 2003-11-28 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
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