Title:
INTELLIGENT TRACTION SUBSTATION AND POWER FLOW CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/173784
Kind Code:
A1
Abstract:
The invention provides an intelligent traction substation and a power flow control method therefor, and relates to the technical field of electrified railway power supply. The substation comprises a traction transformer TT, a power flow control device PCD and a controller CC. A primary side of the traction transformer TT is connected to a three-phase power grid; one end of a secondary side is connected to a traction bus TSB, and the other end is grounded. The traction bus TSB is connected, via a feeder line F, to a traction network OCS that uses bilateral power supply. The controller CC is configured to control, according to electric quantity information of the traction bus TSB and the feeder line F, the power flow control device PCD to carry out negative sequence compensation on the traction transformer TT, such that the negative sequence meets national standards requirements. The controller CC is further configured to control the power flow control device PCD to utilize, via power supply to an electricity distribution system or by energy storage means, generated power flow returned to the traction substation from the traction network OCS to enable the generated power flow returned to the power grid to meet a preset requirement.
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Inventors:
LI QUNZHAN (CN)
HUANG XIAOHONG (CN)
XIE SHAOFENG (CN)
GUO KAI (CN)
YI DONG (CN)
YANG NAIQI (CN)
HUANG XIAOHONG (CN)
XIE SHAOFENG (CN)
GUO KAI (CN)
YI DONG (CN)
YANG NAIQI (CN)
Application Number:
PCT/CN2022/132269
Publication Date:
September 21, 2023
Filing Date:
November 16, 2022
Export Citation:
Assignee:
UNIV SOUTHWEST JIAOTONG (CN)
International Classes:
H02J3/06; B60M3/06; H02J3/28
Foreign References:
| CN114336639A | 2022-04-12 | |||
| CN112350342A | 2021-02-09 | |||
| CN103552488A | 2014-02-05 | |||
| CN109066718A | 2018-12-21 | |||
| US20140160811A1 | 2014-06-12 |
Other References:
XIANG, JIAJIANG: "Discussion on Application of Co-phase Power Supply Scheme of Chongqing Urban Rail Express Line", ELECTRIC ENGINEERING, no. 07, 10 April 2020 (2020-04-10), pages 58 - 62, XP009548723, ISSN: 1002-1388
HUANG, XIAOHONG ET AL.: "Control Strategy of Co-phase Traction Power Supply System and Simulative Analysis", ELECTRIC POWER AUTOMATION EQUIPMENT, vol. 34, no. 01, 10 January 2014 (2014-01-10), pages 43 - 47, XP009548726, ISSN: 1006-6047
HUANG, XIAOHONG ET AL.: "Control Strategy of Co-phase Traction Power Supply System and Simulative Analysis", ELECTRIC POWER AUTOMATION EQUIPMENT, vol. 34, no. 01, 10 January 2014 (2014-01-10), pages 43 - 47, XP009548726, ISSN: 1006-6047
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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