Disclosed are a rail transit hybrid power circuit, an energy storage power pack and a power supply method thereof. The rail transit hybrid power circuit comprises a lithium battery and a grid branch; the lithium battery is connected to a super-capacitor through a 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 grid branch is connected to the load through a second contactor. The power-type super-capacitor is combined with the energy-type lithium battery, the lithium battery is combined with the super-capacitor through the DC/DC converter, and the DC/DC converter realizes the transmission of energy between the lithium battery and the super-capacitor by means of boosting and bucking, so that the characteristics of high energy density of the lithium battery and high power density of the super-capacitor are fully utilized, and the locomotive can still exert high-power traction when passing through a region having no electricity, and can absorb and reuse regenerative braking energy at run time to achieve the purposes of energy conservation and environmental protection.
RAIL TRAFFIC HYBRID POWER CIRCUIT, ENERGY STORAGE POWER PACK, AND POWER SUPPLY METHOD THEREFOR
HYBRIDLEISTUNGSSCHALTUNG FÜR SCHIENENVERKEHR, ENERGIESPEICHERNETZTEIL UND STROMVERSORGUNGSVERFAHREN DAFÜR
CIRCUIT DE PUISSANCE HYBRIDE DE TRAFIC FERROVIAIRE, BLOC BATTERIE DE STOCKAGE D'ÉNERGIE ET PROCÉDÉ D'ALIMENTATION ÉLECTRIQUE ASSOCIÉ
2020-09-09
Patent
Electronic Resource
English
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