Title:
ELECTRIC RAILWAY COAXIAL CABLE POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/192645
Kind Code:
A1
Abstract:
An electric railway coaxial cable power supply system is composed of a central traction substation SS, a coaxial cable, traction transformers TT, an overhead line system T, a steel rail R, a breaker and the like. The central traction substation SS is connected to the coaxial cable. The coaxial cable and the overhead line system T are erected in parallel. The traction transformers TT are single-phase connecting lines and are distributed at certain intervals along the coaxial cable and the overhead line system T. Primary side windings of the traction transformers TT are connected between an inner conductor IC and an outer conductor OC of the coaxial cable in parallel, and secondary side windings of the traction transformers TT are connected between the overhead line system T and the steel rail R in parallel. By means of the adjacent traction transformers TT, the inner conductor IC of the coaxial cable is connected to the overhead line system T in parallel, and the outer conductor OC of the coaxial cable is connected to the steel rail R in parallel. According to the system of the present invention, the power supply capacity and the voltage level are mainly determined by the coaxial cable, the system is suitable for matching the coaxial cable with the overhead line system T at various voltage levels, and the light suspension and the overall quality improvement of the overhead line system T are facilitated; the coaxial cable is erected along a railway or a subway tunnel without additionally occupying any corridor, interfaces between the railway and the utility grid can be reduced, investment for an external power supply is saved, and management is convenient.
Inventors:
LI QUNZHAN (CN)
YI DONG (CN)
LIU WEI (CN)
LI YANAN (CN)
XIE SHAOFENG (CN)
WU JIQIN (CN)
GUO KAI (CN)
ZHANG LIYAN (CN)
LI ZIHAN (CN)
YI DONG (CN)
LIU WEI (CN)
LI YANAN (CN)
XIE SHAOFENG (CN)
WU JIQIN (CN)
GUO KAI (CN)
ZHANG LIYAN (CN)
LI ZIHAN (CN)
Application Number:
PCT/CN2015/000393
Publication Date:
December 23, 2015
Filing Date:
June 08, 2015
Export Citation:
Assignee:
UNIV JIAOTONG SOUTHWEST (CN)
International Classes:
H04B3/04; B60M1/00
Foreign References:
| CN203920466U | 2014-11-05 | |||
| CN104057842A | 2014-09-24 | |||
| CN2097481U | 1992-02-26 | |||
| CN103493335A | 2014-01-01 | |||
| SU1643227A1 | 1991-04-23 | |||
| CN102353876A | 2012-02-15 |
Other References:
See also references of EP 3160052A4
Attorney, Agent or Firm:
CHENGDU XINBO PATENT AGENT LTD. (CN)
成都信博专利代理有限责任公司 (CN)
成都信博专利代理有限责任公司 (CN)
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