Calculation of q - component of stator current

in the palette on the schematic

The block calculates the current signal along the q-axis corresponding to the specified motor torque (Me). The current value can be calculated in absolute or relative units.

The block calculates the torque-generating current component "Iq" using the following formula:


where:
  • iSq — projection of the stator current vector on the q-axis,
  • Inorm — normalizing current values,
  • Mnorm — normalizing torque values,
  • Zp — the number of motor pole pairs,
  • ψR — rotor flux linkage,
  • Lm — the magnetizing inductance,
  • LσR — rotor leakage inductance.

If you set the normalizing values of the torque (Mnorm) and current (Inorm) to "1", then the calculation of the current component "Iq" will be performed in absolute units [A].

Note:
For detailed description of the model see [1, 2].

Inputs

Parameter Description Communication line type
M The set electromagnetic torque of the motor Mathematical

Outputs

Parameter Description Communication line type
Iq The set stator current along the q-axis Mathematical

Properties

Title Parameter Description By default Data type
Specified motor rotor flux linkage, Wb F Specified motor rotor flux linkage 0.7 Вещественное
Number of motor poles Zp Number of motor poles 1 Вещественное
Normalizing value of the torque, ([n*m] or [relative units]) Mnorm Normalizing torque value 1 Вещественное
Normalizing value of the current, ([A] or [relative units]) inorm Normalizing current value 1 Вещественное
Magnetizing inductance, H Lm Magnetizing inductance 0.086 Вещественное
Rotor leakage inductance, H dLr Rotor leakage inductance 0.0025 Вещественное

Parameters

The block has no parameters.

Examples

Examples of block application:
  • AM position
  • AM speed
  • AM speed in relative units

Literature