16KW HVAC solution base on SiC device
Release time:
2023-06-01 17:47
PROJECT INTRODUCTION
This solution used Wolfspeed's SiC devices to instead of traditionaIGBT module for HVAC systems, which can significantly improve thesystem performance and has more cost effective. The compressorcontrol frequency was set to 16KHz to reduces audible noise.Meanwhile, the system efficiency is much higher compared withtraditional IGBT devices, especially with light load. The standby powerconsumption is lower to meet the standby energy efficiency standard
DESIGN SPECIFICATION
| Input Voltage | 38OVac |
| Output Voltage | 25A |
| Rated Power | 16KW |
| Switching frequency | 16KHz |
| System Efficiency | >98% |
FEATURES
· Higher system efficiency with SiC device;
· Sensorless FOC algorithm simplifies system design;
· SiC synchronous rectification, high system efficiency:
· 16KHz switching frequency, smaller dead time, iTHD & noise;
· RS485 communication for upper monitor;
· 4-20mA analog current parallel communication, faster response:
MAIN TOPOLOGY
MAIN DEVICES
| Function | Part Number | Brand |
| SiC MOS | C3M0040120K | Woltspeed |
| Input bridge | DSP45-16A | APL |
| Isolated communication | NSiP894X | Novosense |
| Current sensor | MCA1101-50-3 | Aceinna |
MEASUREMENT RESULTS AND WAVEFORMS
Efficiency.vs.Io
ITHD.Vs.Standard curve
Turn on Vgs&Id&Vds@700V 44A
Diode temperature @ full load
SiC MOS temperature @ full load
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16KW HVAC solution base on SiC device
2023-06-08
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