Title:
BIPOLAR POWER CONVERSION DEVICE USING ZIG-ZAG TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2022/270818
Kind Code:
A1
Abstract:
The present invention relates to a bipolar power conversion device using a zig-zag transformer with respect to a cathode of a DC power source provided from a direct current distribution system, so as to enable independent power control of respective poles and load-side control dynamic characteristics to be improved. To this end, the bipolar power conversion device according to the present invention comprises: power sources of the cathode and an anode; first and second power conversion devices, which perform conversion on the basis of AC/DC from the power sources of the cathode and the anode, so as to output as a grid or a load; and a zig-zag transformer connected between the first and second power conversion devices and the grid or the load, wherein the zig-zag transformer is connected to a point of common coupling (PCC) end of the first and second power conversion devices, and is wired such that the neutral point of the zig-zag transformer coincides with the neutral point of the cathode or anode power source.
Inventors:
JUNG JAE JUNG (KR)
CUI SHENG HUI (CN)
LEE SEUNG YONG (KR)
KIM YE RIN (KR)
CUI SHENG HUI (CN)
LEE SEUNG YONG (KR)
KIM YE RIN (KR)
Application Number:
PCT/KR2022/008501
Publication Date:
December 29, 2022
Filing Date:
June 15, 2022
Export Citation:
Assignee:
KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND (KR)
International Classes:
H02J3/01; H01F30/14; H02J3/26; H02M1/32; H02M7/483; H02M7/493
Foreign References:
| KR20210026165A | 2021-03-10 | |||
| US20050253564A1 | 2005-11-17 | |||
| JP6876585B2 | 2021-05-26 | |||
| KR20170110322A | 2017-10-11 | |||
| KR20200007164A | 2020-01-22 |
Attorney, Agent or Firm:
KIM, Il Hwan (KR)
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