Title:
ELECTRIC TRACTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/205654
Kind Code:
A1
Abstract:
There is provided an electric traction system (1), comprising: a step-down transformer (35) comprising a primary winding (36) for operatively coupling to an AC power supply (40) and a secondary winding (37) which is inductively coupled to the primary winding (36); a traction converter module (2) comprising a first input terminal (4) and a second input terminal (6) which are operatively coupled to the secondary winding (37), and a plurality of AC-to-AC power converters (11), each of which comprises first and second input nodes (3, 5) configured to receive AC power and output nodes (9) configured to supply AC power, wherein the first and second input nodes (3, 5) of the plurality of AC-to-AC power converters (11) are electrically connected in series between the first input terminal (4) and the second input terminal (6); and at least one electric motor (25) configured to be driven by the traction converter module (2).
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Inventors:
QI YU (CN)
MEI WENQING (CN)
LIU LIANGJIE (CN)
DOU ZECHUN (CN)
LIU XIONG (CN)
XIE YUECHENG (CN)
LIU BIN (CN)
MEI WENQING (CN)
LIU LIANGJIE (CN)
DOU ZECHUN (CN)
LIU XIONG (CN)
XIE YUECHENG (CN)
LIU BIN (CN)
Application Number:
PCT/CN2021/104289
Publication Date:
October 06, 2022
Filing Date:
July 02, 2021
Export Citation:
Assignee:
ZHUZHOU CRRC TIMES ELECTRIC CO LTD (CN)
CRRC ZHUZHOU INST CO LTD (CN)
CRRC ZHUZHOU INST CO LTD (CN)
International Classes:
H02M1/00; B60L3/00; B60L9/28; H02M5/00; H02M5/40; B60L7/14; H02K17/12
Foreign References:
| US6431297B1 | 2002-08-13 | |||
| US20080179999A1 | 2008-07-31 | |||
| US20170070175A1 | 2017-03-09 | |||
| EP2586646B1 | 2019-12-04 |
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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