50KW motor drive

Release time:

2023-05-24 11:14

pic

PROJECT INTRODUTION
This solution is 50kW board-level motor driver based on WolfspeedSiC device, which is used to drive the ROV propulsion motor. Fulldigital control and uses the SiC drive core with Miller clamp and shortcircuit protection developed by APL, which greatly improve thesystem reliability
 
DESIGN SPECIFICATION
Input Voltage 680Vdc(-30%-10%)
Output Voltage 0~480V
Rated Power 50KW
Switching Frequency 20KHz
System Efficiency > 98%
Motor load PMSM

 

FEATURES

· Full SiC Mosfet design, extremely high efficiency, peak up to 99.36%;

· Small volume & light weight, power density up to 50kW/L;

· Full digital control for permanent magnet synchronous motor control:

· Submersible work mode, maximum water pressure 625Bar;

 

MAIN TOPOLOGY

PIC

 

MAIN DEVICES
 
Function Part Number Brand
SiC MOSFET C3M0016120K Wolfspeed
MOSFET Driver Core APD202 APL

 

 MEASUREMENT RESULTS AND WAVEFORMS

 

picDead time verify 0.5us

pic60V full load test

 

 

picThermal rise test @ DC680V、1000rpm

picSiC MOSFET Vds

 

 

picDriver core thermal rise

picOverload test: 60kW 120% overload

 

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50KW motor drive

2023-05-24