PMSM-IRTF

Category: Toolbox > eDrives > Motors

Inputs:

• U_s: Input voltage vector for motor in alpha-beta coordinates.

• T_l: Load torque.

• lock_on: Clamp enable for motor shaft. When input is set to 1, the shaft speed is forced to zero. (binary input)

Outputs:

• psi_R: Rotor flux vectors in d-q axes coordinates.

• i_s: Stator current vector for stator currents in alpha-beta coordinates.

• T_me: Mechanical shaft torque of the motor.

• theta_me: Mechanical angular position of the rotor.

• w_me: Mechanical angular speed of the rotor.

Description: The PMSM-IRTF block is a motor model for non-salient permanent magnet synchronous machines. This is a mathematical model of an electrical machine based on the Ideal Rotating Transformer model concept. A three-parameter model representation in space vector format, as shown below, is used.

Graphical user interface, text, application

Description automatically generated

Magnet Flux (Wb): Indicates the estimated permanent magnet flux.

Number of Pole Pairs: Indicates the number of motor pole pairs.

Rotational Inertia: Indicates the inertia of the rotor (plus mechanical load if attached).

Stator Inductance (H): Indicates the measured phase stator inductance $%FontSize=10 %TeXFontSize=10 \documentclass{article} \usepackage{amsmath} \pagestyle{empty} \begin{document} $ L $ \end{document}$ of the motor.

Stator Resistance (ohms): Indicates the measured phase stator resistance $%FontSize=10 %TeXFontSize=10 \documentclass{article} \usepackage{amsmath} \pagestyle{empty} \begin{document} $ R_s $ \end{document}$ of the motor.