Title:
ELECTRIC POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/048019
Kind Code:
A1
Abstract:
The present invention provides an electric power supply system (1, 201, 301) with which it is possible to rapidly extinguish an arc when arc discharge occurs. The present invention has an electric power supply module (2), a boosting circuit to which reactor units (L1, L2) and a first switching element (Q1) are connected in series, a converter unit (10) having a rectifier unit (D1) that permits the flow of an electric current from a converter-circuit side to an inverter-unit side and that cuts off the flow of the electric current from the inverter-unit side to the converter-circuit side, an inverter unit (11) having cutoff units (Q2-Q5), a series arc detection unit (5), and connection terminals (22, 23). It is possible to implement a transformation operation in which the first switching element (Q1) is switched between an on state and an off state, an input voltage of the electric power supply module (2) is boosted or lowered, and electric power is outputted to the inverter unit (11). When the series arc detection unit (5) has detected series arc discharge, the first switching element (Q1) is kept in the off state, and conduction of electric power flowing between the converter unit (10) and the connection terminals (22, 23) is cut off by the cutoff units (Q2-Q5) or the rectifier unit (D1).
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Inventors:
NISHIYAMA HARUO (JP)
Application Number:
PCT/JP2023/022616
Publication Date:
March 07, 2024
Filing Date:
June 19, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
H02J1/00; G01R31/12; H02H3/05; H02H7/26; H02H11/00; H02J3/38; H02J7/35
Domestic Patent References:
| WO2022168255A1 | 2022-08-11 |
Foreign References:
| JP2020036511A | 2020-03-05 | |||
| JP2020076710A | 2020-05-21 | |||
| JP2013500476A | 2013-01-07 | |||
| JP2018117514A | 2018-07-26 |
Attorney, Agent or Firm:
FUJITA Takashi et al. (JP)
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