When orienting the d-axis of the dq system along the rotor flux, the block calculates the slip frequency corresponding to the specified motor torque.
The block calculates the slip frequency according to the following formula:
where:
- Δω — angular field slip velocity,
- Mnorm — normalizing torque value,
- Me — electromagnetic torque of the motor,
- RR — rotor resistance,
- Zp — the number of motor pole pairs,
- ψR — rotor flux linkage;
When working in absolute values, it is necessary to set Mnorm = 1.
Прим.: For detailed description of the model see [
1, 2].
Входные порты
Parameter |
Description |
Communication line type |
M |
The set electromagnetic torque of the motor |
Mathematical |
Выходные порты
Parameter |
Description |
Communication line type |
dw |
Field slip velocity |
Mathematical |
Свойства
Title |
Parameter |
Description |
By default |
Data type |
Normalizing value of the torque, n*m or relative units |
Mnorm |
Normalizing torque value |
1 |
|
Rotor resistance, Ohm |
Rr |
Rotor resistance |
0.145 |
|
Number of motor poles |
Zp |
Number of motor poles |
1 |
|
Specified motor rotor flux linkage, Wb |
F |
Specified motor rotor flux linkage |
0.7 |
|
Параметры
The block has no parameters.
Примеры
Examples of block application:
- AM position
- AM speed
- AM speed in relative units