Title:
CONTROL DEVICE AND POWER CONVERSION DEVICE IN SOLAR POWER GENERATING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/042608
Kind Code:
A1
Abstract:
This control device comprises: a first action control unit that causes a DC switch to open when a power conversion device is in a standby state and when a first DC voltage value acquired by a voltage acquiring unit has become greater than a predetermined first threshold; a clock unit that, when the DC switch is opened by the first action control unit, clocks the elapsed time after the DC switch has been opened; and a soundness determining unit that when the DC switch is opened while the power conversion device is in the standby mode and when the elapsed time period clocked by the clock unit has reached or exceeded a predetermined first time period, calculates a first differential voltage value that is the difference between the first DC voltage value acquired by the voltage acquiring unit and a second DC voltage value, determines that the DC switch is normal when the first differential voltage value is greater than a predetermined second threshold, and determines that the DC switch is abnormal when the first differential voltage value is equal to or less than the predetermined second threshold.
Inventors:
COLAK ALPEREN MUSTAFA (JP)
TAWADA YOSHIHIRO (JP)
TAWADA YOSHIHIRO (JP)
Application Number:
PCT/JP2022/031698
Publication Date:
February 29, 2024
Filing Date:
August 23, 2022
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP (JP)
International Classes:
H02H7/122; G01R31/327; H02J3/38
Domestic Patent References:
| WO2013001820A1 | 2013-01-03 | |||
| WO2017090139A1 | 2017-06-01 | |||
| WO2022091250A1 | 2022-05-05 | |||
| WO2017073079A1 | 2017-05-04 |
Foreign References:
| JP2022535932A | 2022-08-10 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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