Title:
MULTI-SOURCE POWER SUPPLY CIRCUIT TEST METHOD, SYSTEM, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/101084
Kind Code:
A1
Abstract:
A multi-source power supply circuit test method, system, and device, applied in a power supply circuit in which a contact line and a conductor rail are both connected to a locomotive main transmission system by an isolation/conduction device. The method comprises: obtaining, by means of a first voltage sensor (11), a first voltage of a standby power supply circuit, wherein a locomotive main transmission system is currently powered by a target power supply circuit, the target power supply circuit is a contact line power supply circuit or a conductor rail power supply circuit, and the standby power supply circuit is a conductor rail power supply circuit or a contact line power supply circuit in a standby state; and if the first voltage is within a preset range, determining that the standby power supply circuit is electrically conducted to the target power supply circuit, and addressing the corresponding fault. The method uses a simple circuit and has a small footprint, and is used in a power supply circuit having an isolation/conduction device. When a short-circuit conduction fault occurs in a standby power supply circuit, a first voltage changes and falls within a preset range, and after the change is detected, the fault is timely addressed, and protective control measures are taken to prevent further losses.
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Inventors:
LI XINING (CN)
PENG XINPING (CN)
GUO WANLU (CN)
LIU SHIJIE (CN)
FU JIN (CN)
ZHANG SHUXUN (CN)
PENG XINPING (CN)
GUO WANLU (CN)
LIU SHIJIE (CN)
FU JIN (CN)
ZHANG SHUXUN (CN)
Application Number:
PCT/CN2018/116603
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B60M3/00; H02J9/06
Foreign References:
| CN107901791A | 2018-04-13 | |||
| CN201907426U | 2011-07-27 | |||
| CN103204067A | 2013-07-17 | |||
| CN102774385A | 2012-11-14 | |||
| CN103401288A | 2013-11-20 | |||
| US9810734B2 | 2017-11-07 | |||
| JP2010158097A | 2010-07-15 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM et al. (CN)
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