200KW motor drive base on discrete SiC device
Release time:
2023-05-24 11:24
PROJECT INTRODUCTION
This reference solution is based on Wolfspeed discrete SiC devices inmultiple parallel to reach up to 200kW power. DSP digital controlsthe permanent magnet synchronous motor, and APL self-developedhigh power SiC drive core directly drives the six parallel SiC devices.The system is designed with a independent drive board to improvethe driver imbalance problem. SiC devices improves the systemefficiency and increases the range of electric vehicles by 10%.
DESIGN SPECIFICATION
| Input Voltage | 450~650Vdc |
| Output Voltage | 400A |
| Rated Power | 200KW |
| Switching Frequency | 10KHz |
| System Efficiency | >99% |
FEATURES
· Multi parallel SiC devices, supporting up to 200kW:
· Compact design, power density up to 50 kW/L:
· High efficiency, peak up to 99.3%;
· Full digital control;
· SiC driver core provides short-circuit protection and fault reporting;
· Competible for 12,000 rpm high-speed motor, 30Hz to 1KHz output;
MAIN TOPOLOGY
MAIN DEVICES
| Function | Part Number | Brand |
| SiC MOSFET | SiC MOS | Wolfspeed |
| Driver Core | APD202 | APL |
MEASUREMENT RESULTS AND WAVEFORMS
Efficiency Vs.Po
Peak torque & Efficiency & rpm
Full load current
Short circuit protection
Starting up, Vgs&Id1&Id2&Id3
Shutting down, Vgs&Id1&Id2&Id3
SiC body diode reverse recovery
Thermal test
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200KW motor drive base on discrete SiC device
2023-05-24
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