The PMDC machine block implements a permanent magnet excited DC motor.
Figure 1 PMDC Motor
Dialog Box
Figure 2 PMDC dialog box
|
Parameter Name |
Signal |
Description |
|
Voltage Constant |
|
Back electromotive force (BEMF) constant. In DC Motor it is same as Torque constant. You can find the value of Voltage Constant or the Torque Constant in the datasheet. |
|
Pole Pair Number |
|
The number of pole pairs. It means how many pairs of ‘Field Pole’ in Figure1 there are. In Figure1, the value of Pairs of Poles is ‘1’. |
|
Armature Resistance |
|
The armature resistance between the armature terminal A+ and A-. You can find the value of Armature Resistance in the datasheet. [Ohms] |
|
Armature Inductance |
|
The armature inductance between the armature terminal A+ and A-. You can find the value of Armature Inductance in the datasheet. [H] |
|
Armature Initial Current |
|
Initial value of armature current. Set this value to ‘0’ if you don`t know it. |
Mechanical Parameter
|
Parameter Name |
Signal |
Description |
|
Exclude Rotor / Include Rotor
|
|
Select the type of Motor between ‘’Exclude Rotor’ and ‘Include Rotor’. The more detail explanation of two types is in the Mechanical Part of the Equation of PMDC. |
|
Rotor Inertia
|
|
Inertia of rotor. This parameter don`t need on the Rotor Speed Type. You can find the inertia of rotor in the datasheet. [kg*m^2] |
|
Friction Gain
|
|
Viscous friction gain between motor and load. When you apply the friction between the motor and the load in your dynamic model, you have to set this value to ‘0’. [Nms] |
|
Friction Offset
|
|
Viscous friction Offset between motor and load (B |
|
Rotor Initial Speed
|
|
Initial value of rotor speed. Set this value to ‘0’ if you don`t know it. [rad/s] |
