Title:
TRACTION POWER SUPPLY SYSTEM FOR HIGH-SPEED RAIL AND ON-BOARD POWER STORAGE AND DISCHARGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/210858
Kind Code:
A1
Abstract:
A traction power supply system for high-speed rail, comprising: an internal power supply device. The internal power supply device comprises an internal locomotive power supply and auxiliary power supply circuit, and an on-board power storage and discharge circuit. The internal locomotive power supply and auxiliary power supply circuit and the on-board power storage and discharge circuit form a composite circuit. Two-way single-phase α and β circuits from a traction power supply grid (A, B, C) traction transformer (S) secondary side are conducted to an internal power supply system by means of dual-phase pantographs T1 and T2. When one of the dual-phase pantographs T1 and T2 is raised, the other must be dropped. Alternatively, both dual-phase pantographs can be dropped. Wherein the single-phase α current is always connected to the internal locomotive power supply and auxiliary power supply circuit. The single-phase β current is always connected to the on-board power storage and discharge circuit. The internal locomotive power supply and auxiliary power supply circuit and the on-board power storage and discharge circuit are mutually independent and insulated from each other. The composite circuit of the traction power supply and a basic circuit (CRH1) share a set of an internal auxiliary power supply system and a set of an internal locomotive power supply system. The invention can simplify a structure of a circuit, ensure zero incidence of negative-sequence current throughout a transportation process, and does not require setup of a power grid and a power grid supporting structure in a number of areas.
Inventors:
SONG YUQUAN (CN)
GUAN XIAOFANG (CN)
WANG MINGHUI (CN)
WU WENFU (CN)
GUAN XIAOFANG (CN)
WANG MINGHUI (CN)
WU WENFU (CN)
Application Number:
PCT/CN2016/085120
Publication Date:
December 14, 2017
Filing Date:
June 07, 2016
Export Citation:
Assignee:
UNIV JILIN (CN)
International Classes:
B60L9/00
Foreign References:
| CN104210385A | 2014-12-17 | |||
| CN104015632A | 2014-09-03 | |||
| CN102490618A | 2012-06-13 | |||
| JP2011166961A | 2011-08-25 |
Attorney, Agent or Firm:
NTD UNIVATION INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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