Cross-linking compensation block for SM

in the palette on the schematic

The block makes it possible to make the current control channels along the axes d and q independent of each other by generating cross-compensation signals. The value of the compensation voltages can be calculated in absolute or relative units.

The output signals of the block are calculated by the formulas:




where:
  • iSq, iSd — projections of the stator current vector on the d and q axes,
  • Inorm, Unorm — normalizing values of current and voltage,
  • LSd, LSd — inductances along the axes d and q,
  • ψf — rotor flux linkage,
  • ωe — angular speed of the stator field.

When the "Inorm" and "Unorm" properties are set to "1", the compensation voltages will be calculated in absolute units.

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

Inputs

Parameter Description Communication line type
Wr Rotor speed Mathematical
Iq Stator current along the q-axis Mathematical
Id Stator d-axis current Mathematical

Outputs

Parameter Description Communication line type
qk Compensation voltage along the q-axis Mathematical
dk Compensation voltage along the d-axis Mathematical

Properties

Description Name Description By default Data type
Stator inductance along the q-axis, H Lsq Stator inductance along the q-axis 0.112 Вещественное
Stator inductance along the d-axis, H Lsd Stator inductance along the d-axis 0.112 Вещественное
Number of motor poles Zp Number of motor poles 42 Вещественное
Rotor flux linkage, Wb F Rotor flux linkage 0.4 Вещественное
Normalizing current value, A Inorm Normalizing current value 7 Вещественное
Normalizing voltage value (DC link voltage), V Unorm Normalizing voltage value (DC link voltage) 540 Вещественное

Parameters

The block has no parameters.

Examples

Examples of block application:
  • Speed of permanent-field synchronous motor
  • Angle of permanent-field synchronous motor

Literature