New energy locomotive electric transmission system capable of switching multiple modes

• Main Authors: MENG ZHAOMING, CHENG CUNXIN, SHAN BAOYU, LI HEQUN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2024
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; INDUCTANCES; MAGNETS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention provides a new energy locomotive electric transmission system capable of achieving multi-mode switching. The new energy locomotive electric transmission system comprises a cabinet body, a power battery copper bar, a traction power module, a pre-charging module, an overvoltage suppression resistor, a branching module, a high-frequency auxiliary power module and a high-frequency SiC charger. A copper bar unit is fixed on the first insulating part, the output end of the pre-charging module is connected with the input end of the electric reactor, the electric reactor is arranged in the heat dissipation air channel, and maintenance can be achieved without disassembling the cabinet body; the U-phase copper bar, the V-phase copper bar and the W-phase copper bar at the output end of the traction power module are connected with the traction output copper bar through cables. The traction power module is connected with the power frequency auxiliary power module through a confluence busbar; a domestic elect