Three-level: three-phase SiC AC-to-DC converter reference design
Description
This reference design provides an overview on how to implement a three-level: three-phase: SiC-based AC/DC converter with bi-directional functionality. A high switching frequency of 50 kHz reduces the size of magnetics for the filter design and as a result a higher power density. SiC MOSFETs with switching loss enable higher DC bus voltages of up to 800V and lower switching losses with a peak efficiency of >97%. This design is configurable to work as a two-level or three-level rectifier. For design information on the DC/AC implimentation: see TIDA-01606.The system is controlled by a single C2000 microcontroller (MCU): TMS320F28379D: which generates PWM waveforms for all power electronic switching devices under all operating modes.
Features
- Rated nominal input of 380 - 400VAC peak: with DC output of 800VMaximum 10-kW: 10-kVA output power at 400-VAC 50- or 60-Hz grid connectionHigh-voltage (1200-V) SiC MOSFET-based fullbridge AC/DC converter for peak efficiency of >97%Compact filter by switching rectifier at 50 kHzIsolated driver ISO5852S with reinforced isolation for driving high-voltage SiC MOSFET and UCC5320S for driving middle Si IGBTIsolated current sensing using AMC1301 for load current monitoringTMS320F28379D control card for digital control
Applications
- Oscilloscope (DSO)
- Digital multimeter (DMM)
- DC charging (pile) station
- Energy storage power conversion system (PCS)
- Railway auxiliary power systems
- Arbitrary waveform generator (AWG)
- EV charging station power module
Product Categories
- Power management