SUBSTATION DIRECT-CURRENT POWER SUPPLY SYSTEM AND POWER STORAGE METHOD

Title:

SUBSTATION DIRECT-CURRENT POWER SUPPLY SYSTEM AND POWER STORAGE METHOD

Document Type and Number:

WIPO Patent Application WO/2020/000618

Kind Code:

A1

Abstract:

The present application relates to a substation direct-current power supply system, comprising a rectification module, a storage battery, a charging control module, and a diode module. An input terminal of the rectification module is connected to an external power supply; a first output terminal of the rectification module is connected to a load. One terminal of the charging control module is connected to a second output terminal of the rectification module, and the other terminal is connected to the storage battery. The charging control module is used to control the rectification module to charge the storage battery when an electrical parameter is lower than a first threshold. The storage battery is connected to an anode of the diode module, and a cathode of the diode module is connected to the load. With the charging control module provided, the rectification module is allowed to charge the storage battery only when the electrical parameter is lower than the first threshold, so as to prevent the storage battery from being in a floating charge state, thereby increasing the service life of the substation direct-current power supply system.

Inventors:

ZHAO HAOBIAO (CN)
ZHOU ZHE (CN)
CONG PEIJIE (CN)
CAI DI (CN)
LIU SHAN (CN)
OU WEIMING (CN)
CHEN YUANJUN (CN)
ZOU ZHILIANG (CN)
HUANG JIANYUAN (CN)
YE LIANG (CN)

Application Number:

PCT/CN2018/101988

Publication Date:

January 02, 2020

Filing Date:

August 23, 2018

Export Citation:

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Assignee:

GUANGZHOU POWER SUPPLY CO LTD (CN)

International Classes:

H02J7/02; H02J7/00; H02J7/34

Foreign References:

CN202856431U	2013-04-03
CN102946126A	2013-02-27
CN207283222U	2018-04-27
US20120153903A1	2012-06-21

Other References: