Texas Instruments UCC5320 | Demoboard TIDA-01606

Description

This reference design provides an overview on how to implement a bidirectional three-level, three-phase, SiC-based active front end (AFE) inverter and PFC stage. The design uses a switching frequency of 50kHz and a LCL output filter to reduce the size of the magnetics. A peak efficiency of 99% is achieved.The design shows how to implement a complete three phase AFE control in the DQ domain. The control and software is validated on the actual hardware and onhardware in the loop (HIL) setup.

Features

• Rated nominal and maximum input voltage at 800-V and 1000-V DC, Max Power 10-kW/10-kVA at 400-V AC L-L 50 or 60 Hz
• Compact output LCL filter with switching frequency of 50 kHz
• < 2% output current THD at full load
• Isolated driver ISO5852S with reinforced isolation for driving high-voltage SiC MOSFET and UCC5320S for driving middle Si IGBT
• Isolated current sensing using AMC1301 for load current monitoring
• TMS320F28379D control card for digital control with Trignometric Math Unit (TMU) to accelerate PLL computation, comparator sub-system for protection implementation and Control Law Accelerator (CLA) to offload the control loops to the co-processor.

Typical applications

• String inverter, Central inverter, On-board (OBC) and wireless charger, DC charging (pile) station, Portable DC charger, Energy storage power conversion system (PCS)

More information

• Datasheet
• IC product information