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Title:
FLEXIBLE POWER TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2023/241074
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application is a flexible power transformer. The flexible power transformer comprises a main transformer and a converter apparatus, wherein the main transformer comprises a primary-side winding and a plurality of secondary-side windings; the converter apparatus is connected in series between a tail end of the primary-side winding of the main transformer and a tail end of any secondary-side winding of the main transformer, or the converter apparatus is connected in series between tail ends of any two secondary-side windings of the main transformer; and the converter apparatus is used for adjusting the voltage of each winding of the main transformer by means of adjusting the output voltage of the converter apparatus. In the embodiments of the present application, the function of adjusting the voltage of each winding of a transformer can be realized without changing the turn ratio of the transformer. Moreover, a voltage-source-type converter is combined with a power transformer, so as to realize rapid, continuous, accurate and flexible adjustment of the output electrical quantity of the transformer by means of a converter with a relatively small capacity.

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Inventors:
ZHAO GUOLIANG (CN)
QIAO GUANGYAO (CN)
LI WEIGUO (CN)
ZHAO YONGBIN (CN)
JIN YANJIAO (CN)
SUN QINGHAO (CN)
XU YUNFEI (CN)
LIU HAIJUN (CN)
LI FANGYI (CN)
SHI QIUYU (CN)
SUN GENG (CN)
WANG DAN (CN)
LI LU (CN)
YANG ZHICHANG (CN)
ZHANG XIAOYU (CN)
Application Number:
PCT/CN2023/075686
Publication Date:
December 21, 2023
Filing Date:
February 13, 2023
Export Citation:
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Assignee:
STATE GRID SMART GRID RES INSTITUTE CO LTD (CN)
FUXIN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H02J3/12; H02J3/06; H02M5/12
Foreign References:
CN114884071A2022-08-09
CN111525583A2020-08-11
CN111525582A2020-08-11
CN105006978A2015-10-28
JP2021114813A2021-08-05
RO122237B12009-02-27
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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