Motor-driven
High-speed Ventilation Exhaust Fan
Key parameters
| Item | Parameters |
|---|---|
| Control method | Sensorless FOC vector control |
| Current sampling | 1-shunt/2-shunt current sampling |
| Initial position detection | 3-phase voltage vectors pulse injection |
| Angular estimation | Luenberger observer + Q-PLL |
| Motor start-up | At standstill, in a high-speed tailwind, or a headwind with high back pressure |
| Speed range | 1,000 ~ 40,000 rpm |
| Protection mechanism | Stall, overcurrent, overvoltag and undervoltage protection |
Block diagram
