Title:
SINGLE THREE-PHASE COMPATIBLE ALTERNATING-CURRENT/DIRECT-CURRENT/ALTERNATING-CURRENT TRACTION CONVERTER, AND HIGH-SPEED TRAIN POWER SUPPLY AND TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/087974
Kind Code:
A1
Abstract:
Provided in the present invention is a single three-phase compatible alternating-current/direct-current/alternating-current traction converter, comprising a plurality of rectification-side power tube bridge arms, and further comprising three rectification-side input ends, which are connected to corresponding rectification-side power tube bridge arms by means of a rectification-side inductor and a change-over switch. By means of changing the turn-on/off state of the change-over switch, a rectification side of the alternating-current/direct-current/alternating-current traction converter may be compatible with an external three-phase electric input, and may also be compatible with an external single-phase electric input. When there is an external three-phase electric input, the plurality of rectification-side power tube bridge arms operate according to a three-phase rectification circuit; and when there is an external single-phase electric input, the plurality of rectification-side power tube bridge arms operate according to a single-phase rectification circuit. By means of the present invention, compatibility for a three-phase alternating-current input and a single-phase alternating-current input can be realized, such that a wide application range is achieved; and it is not necessary to provide a single-phase input end in addition to a three-phase input end, thereby realizing simple wiring.
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Inventors:
WU BO (CN)
LI QUNZHAN (CN)
LI SHUQIAN (CN)
ZHANG WEIPENG (CN)
YANG ZHILING (CN)
LI QUNZHAN (CN)
LI SHUQIAN (CN)
ZHANG WEIPENG (CN)
YANG ZHILING (CN)
Application Number:
PCT/CN2022/124417
Publication Date:
May 25, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
CHENGDU SHANGHUA ELECTRIC CO LTD (CN)
International Classes:
H02M5/458; B60L9/28; H02M1/10; H02M7/219
Domestic Patent References:
| WO2019080756A1 | 2019-05-02 |
Foreign References:
| CN114123808A | 2022-03-01 | |||
| CN109842287A | 2019-06-04 | |||
| CN202142879U | 2012-02-08 | |||
| CN105470958A | 2016-04-06 | |||
| CN104539173A | 2015-04-22 | |||
| CN205986277U | 2017-02-22 | |||
| CN107947309A | 2018-04-20 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
Download PDF:
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