Fast charger 20 kW for a Li-ion battery of an electric excavator

Fast charger 20 kW for a Li-ion battery of an electric excavator

Functioning sample

Compact charger design with a single-stage three-phase isolated PFC and resonant topology using SiC components. The output voltage is fully controllable from 0 to 100 VDC, the maximum output current is 200 ADC. A synchronous output rectifier and an advanced control with a variable switching frequency and phase shift are implemented. A peak efficiency of approx. 97.7 % was achieved. Remote charging control includes storing and processing charging and battery data in the Cloud.

Compact charger design with a single-stage three-phase isolated PFC and resonant topology using SiC components. The output voltage is fully controllable from 0 to 100 VDC, the maximum output current is 200 ADC. A synchronous output rectifier and an advanced control with a variable switching frequency and phase shift are implemented. A peak efficiency of approx. 97.7 % was achieved. Remote charging control includes storing and processing charging and battery data in the Cloud.

single-stage PFC, SiC technology, pulse transformer, resonant converter, soft-switching, zero voltage switching, remote control, Cloud

single-stage PFC, SiC technology, pulse transformer, resonant converter, soft-switching, zero voltage switching, remote control, Cloud

VUT FEKT, Technická 12 Brno, building A, 3rd floor, SA3.10

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https://www.ceitec.eu/project-transform-trusted-european-sic-value-chain-for-a-greener-economy/t11447