Motor-driven
Electrical Drilling Machine
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 |
| Speed range | 500 ~ 40,000 rpm |
| Speed response | Full-speed rising time < 250ms |
| Protection mechanism | Stall, overcurrent, overvoltage, and under-voltage protection |
Block diagram
