TOPOLOGY STRUCTURE OF POWER BATTERY PACK OF DIESEL-ELECTRIC HYBRID POWER LOCOMOTIVE

WIPO Patent Application WO/2021/004267

A1

A topology structure of a power battery pack of a diesel-electric hybrid power locomotive; a chopper unit is connected in parallel to a supporting capacitor C, and the chopper unit is further connected to an AC/DC module, a DC/AC module, a reactor unit and a power battery system; the power battery system comprises several sets of power modules; the power modules comprise a contactor unit, a current sensor, a fuse, a power battery, and a voltage sensor; the contactor unit, the current sensor and the power battery are connected in series, and both ends of the voltage sensor are disposed at both ends of the power battery, respectively; a locomotive microcomputer is connected to a DUC controller and a power battery management system, respectively; the DUC controller is connected to the DC/AC module, the chopper unit and the contactor units; and the power battery management system is connected to the contactor units. The provision of the chopper unit and the reactor unit solves the difficulty of control when a plurality of power battery packs are put in, ensures the reliability of the operation of the power battery system and effectively extends the service life of the power battery.

MENG YUFA (CN)
WANG PINGHUA (CN)
CHANG RUILIN (CN)
LIU SHUNGUO (CN)
HAN XIAO (CN)

PCT/CN2020/097630

January 14, 2021

June 23, 2020

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CRRC ZIYANG CO LTD (CN)

B60L58/10

CN110254294A	2019-09-20
CN107733055A	2018-02-23
CN104467455A	2015-03-25
CN105235546A	2016-01-13
CN102324876A	2012-01-18
JP2010057236A	2010-03-11

CHENGDU JIUDING TIANYUAN INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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