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Title:
RAIL TRAFFIC HYBRID POWER CIRCUIT, ENERGY STORAGE POWER PACK, AND POWER SUPPLY METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/085228
Kind Code:
A1
Abstract:
A rail traffic hybrid power circuit, an energy storage power pack and a power supply method therefor. The hybrid power circuit comprises a lithium battery and a power grid branch; the lithium battery is connected to a super-capacitor by means of a voltage boost/buck module; an output end of the super-capacitor is connected to a charging branch and a first contactor; the first contactor and the charging branch are both connected to a load; and the power grid branch is connected to the load by means of a second contactor. A power-type super-capacitor and an energy-type lithium battery are combined, the lithium battery is combined with the super-capacitor by means of a DC/DC converter, and the DC/DC converter realizes energy transmission between the lithium battery and the super-capacitor by means of voltage boosting and voltage bucking, such that the characteristics of the high energy density of the lithium battery and the high power density of the super-capacitor are utilized fully, so that a locomotive may still have a high-power traction force when passing through a region having no electricity, and regenerative brake energy can be absorbed and recycled when the locomotive runs, thereby achieving the purposes of energy conservation and environmental protection.

Inventors:
FAN, Yunxin (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
WANG, Wei (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
LONG, Yuan (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
HUANG, Hai (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
GUO, Wanlu (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
CHEN, Shengcai (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
FU, Jin (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
LI, Xianling (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
Application Number:
CN2017/118476
Publication Date:
May 09, 2019
Filing Date:
December 26, 2017
Export Citation:
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Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO., LTD. (Tianxin High-tech Park, Shifeng DistrictZhuzhou, Hunan 1, 412001, CN)
International Classes:
B60L11/00
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (7th Floor, Sunflower Plaza 188# Fenglin 2nd Road, Yuelu Distric, Changsha Hunan 5, 410205, CN)
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