Title:
AC VOLTAGE OUTPUT SYSTEM, POWER SYSTEM CONTROL SYSTEM, POWER SYSTEM, DC POWER TRANSMISSION SYSTEM, POWER GENERATION SYSTEM, AND BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/059880
Kind Code:
A1
Abstract:
Provided are an AC voltage output system, a power system control system, a power system, a DC power transmission system, a power generation system, and a battery system, with which operation can be continued even when a power source for driving a switch has been lost. The AC voltage output system comprises at least one arm to which a plurality of unit converters 3 that output a prescribed voltage are connected in series. Each unit converter 3 comprises: a first switch arm 13 to which a first switch 13H and a second switch 13L are connected in series; a second switch arm 14 to which a third switch 14H and a fourth switch 14L are connected in series; and a power reservoir 15 that can be charged and discharged. The end on the first switch 13H side of the first switch arm 13 is connected to the end on the third switch 14H side of the second switch arm 14, and the end on the second switch 13L side of the first switch arm 13 is connected to the end on the fourth switch 14L side of the second switch arm 14, and the first switch arm 13, the second switch arm 14, and the power reservoir 15 are connected in parallel. The first switch 13H and the third switch 14H, the second switch 13L and the fourth switch 14L, or the first switch 13H, the third switch 14H, the second switch 13L, and the fourth switch 14L are each constituted by a normally-on switching element.
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Inventors:
KATOH SHUJI (JP)
TAKAHASHI YOSHIKAZU (JP)
ENDOH TETSUO (JP)
TAKAHASHI YOSHIKAZU (JP)
ENDOH TETSUO (JP)
Application Number:
PCT/JP2019/037111
Publication Date:
March 26, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
H02M7/49; H02J3/32; H02J7/00; H02J7/34; H02J9/06; H02M7/48
Domestic Patent References:
| WO2014128842A1 | 2014-08-28 |
Foreign References:
| JP2018133950A | 2018-08-23 | |||
| JP2017059778A | 2017-03-23 | |||
| JP2017195687A | 2017-10-26 | |||
| JP2011229262A | 2011-11-10 | |||
| JP2015115977A | 2015-06-22 |
Attorney, Agent or Firm:
DORAIT IP LAW FIRM (JP)
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