Bi-directional: dual active bridge reference design for level 3 electric vehicle charging stations
Description
This reference design provides an overview on the implementation of a single-phase dual active bridge (DAB) DC/DC converter. DAB topology offers advantages like soft-switching commutations: a decreased number of devices and high efficiency. The design is beneficial where power density: cost: weight: galvanic isolation: high voltage conversion ratio and reliability are critical factors: making it ideal for EV charging stations and energy storage applications. Modularity and symmetrical structure in DAB allow for stacking converters to achieve high power throughput and facilitate a bidirectional mode of operation to support battery charging and discharging applications.
Features
- Dual-channel UCC21530 with reinforced isolation used for driving SiC MOSFETs in the half-bridge configurationTMS320F280049 controller for implementation of digital controlIsolated voltage and current sensingPrimary voltage of 700-800-V DC: secondary voltage of 380-500-V DC: maximum power output of 10 kWFull load efficiency of 97.6% and a peak efficiency of 98.2% at 6 KWHigh-power density of 2.32 KW/L
Applications
- String inverter
- Oscilloscopes & digitizers
- Fuel cell inverter
- DC fast charging station
- Power conversion system (PCS)
- DC fast charging power module
- Battery backup unit (BBU)
- DC wallbox charger
- 1-phase AC-digital control
- 3-phase AC-digital control
- DC-fast charging
- Portable power station
Product Categories
- Power management