Title:
RAIL TRANSIT DIRECT CURRENT TRACTION POWER SUPPLY SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/128738
Kind Code:
A1
Abstract:
A rail transit direct current traction power supply system and a control method therefor. The power supply system comprises a rectification source (10) and an energy storage assembly (20). The control method for the power supply system comprises: obtaining current operating conditions of a train, and obtaining a reference voltage of a direct current traction network and a voltage of the direct current traction network; if the train is currently in a traction state, according to the reference voltage and the voltage of the direct current traction network, controlling the energy storage assembly (20) to release energy to the direct current traction network, so as to inhibit a drop in the direct current traction network voltage; if the train is currently in a braking state, according to the reference voltage and the voltage of the direct current traction network, controlling the energy storage assembly (20) to absorb feedback energy via the direct current traction network when the train is braking, so as to inhibit a rise in the direct current traction network voltage.
Inventors:
JING JIANFEI (CN)
SUN JIAPIN (CN)
SUN JIAPIN (CN)
Application Number:
PCT/CN2018/121212
Publication Date:
July 04, 2019
Filing Date:
December 14, 2018
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
B60L7/12
Foreign References:
| CN206031089U | 2017-03-22 | |||
| CN103311950A | 2013-09-18 | |||
| CN103840477A | 2014-06-04 | |||
| CN105226790A | 2016-01-06 | |||
| CN106809060A | 2017-06-09 | |||
| CN101376344A | 2009-03-04 | |||
| CN108667002A | 2018-10-16 | |||
| CN106549403A | 2017-03-29 | |||
| JP2008148531A | 2008-06-26 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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