2.3 Configuring the Electrical Models

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

Configuring the PMSM Model

In this example, the PMSM model and associated sensors have been pre-configured. For more information related to machine configuration, please refer to the PMSM BLDC Section. Explore the configuration of the machine by following the steps below.

In the Configuration Tree, expand Circuit Model >> Machines and click PMSM BLDC 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 PMSM BLDC 1 and click Mechanical Model to view the mechanical model parameters.
Confirm that the parameter values match those in the tables below.

Machine Configuration

Machine Configuration
Machine Type	PMSM Constant Ld/Lq
Direct Axis Inductance (H)	0.002984
Quadrature Axis Inductance (H)	0.004576
Permanent Magnetic Flux Linkage (Wb)	0.25366
Phase A Resistance (Ohm)	0.12
Phase B Resistance (Ohm)	0.12
Phase C Resistance (Ohm)	0.12
Pole Pairs	3
Direct Quadrature Transform Angle Offset	Aligned
Sample Time (s)	1.2E-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	0.3665
Static Friction	0.0019
Inertia	0.0167
Mechanical Model Mode (VeriStand Channel)	1