4.3 Configuring the Electrical Models

Circuit Model File Path: <Public Documents>\National Instruments\<NI VeriStand 20XX>\Examples\OPAL-RT\Power Electronics Add-On\SCIM Constant Local Control\Circuit Model\SCIM_eHS_UB.mdl

Configuring the SCIM Model

In this example, the SCIM model has been pre-configured. For more information about machine configuration, please refer to the IM SM Section. Explore the machine configuration described below.

In the Configuration Tree, expand Circuit Model >> Machines and click SCIM 1 to open the configuration page for the machine.
Observe the configured machine parameters. The Input Mapping subsection allows the outputs of the circuit model to be connected to the inputs of the machine.
In the Configuration tree, expand SCIM 1 and click Mechanical Model to view the mechanical model parameters.
Confirm that the parameter values match those in the table below.

Machine Configuration

Machine Configuration
Machine Type	Squirrel-Cage Induction Machine
Stator Resistance (Ohm)	0.5968
Stator Leakage Inductance (H)	0.00035
Rotor Resistance (Ohm)	0.6258
Rotor Leakage Inductance (H)	0.00547
Pole Pairs	3
Mutual Inductance (H)	0.0354
Zero-Sequence	Don't Include
Solver Timestep (s)	4.81E-7
Input Mapping Configuration
Voltage Phase A	Circuit Model 1.Va_inv
Voltage Phase B	Circuit Model 1.Vb_inv
Voltage Phase C	Circuit Model 1.Vc_inv

Mechanical Model Configuration

Mechanical Model Configuration
Initial Rotor Angle (Deg)	0
Viscous Damping	0.00190986
Static Friction	0.3665
Inertia	0.0167309
Mechanical Model Mode (VeriStand Channel)	1