WOLFRAM SYSTEM MODELER

DCMotor

A simple model of a DC motor.

Diagram

Wolfram Language

In[1]:=
SystemModel["EducationExamples.ElectricalEngineering.DCMotor.Components.DCMotor"]
Out[1]:=

Information

A simple dynamic model of a controlled DC motor consisting of a variable voltage source, a resistor, an inductor, and an electro-motoric force element representing the coupling between electric energy and mechanical energy provided by the magnetic field in the DC motor. The motor axis is represented by a rotating inertia.

Comparison of step response for the rotational speed of the inertia using the default parameters (DCMotor 1) and with resistance set to 10 Ohm, inductance 0.1 H, and moment of inertia to 0.3 kg m (DCMotor 2):

For a step by step tutorial see Multidomain—A Servo Mechanism.

Parameters (4)

R

Value: 13

Type: Real

L

Value: 1

Type: Real

J

Value: 1

Type: Real

EMFk

Value: 1.6

Type: Real

Connectors (3)

w

Type: RealOutput

Description: 'output Real' as connector

V

Type: RealInput

Description: 'input Real' as connector

flange_a1

Type: Flange_a

Description: One-dimensional rotational flange of a shaft (filled circle icon)

Components (7)

resistor

Type: Resistor

Description: Ideal linear electrical resistor

inductor

Type: Inductor

Description: Ideal linear electrical inductor

EMF1

Type: RotationalEMF

Description: Electromotoric force (electric/mechanic transformer)

ground

Type: Ground

Description: Ground node

signalVoltage

Type: SignalVoltage

Description: Generic voltage source using the input signal as source voltage

speedSensor

Type: SpeedSensor

Description: Ideal sensor to measure the absolute flange angular velocity

inertia

Type: Inertia

Description: 1D-rotational component with inertia

Used in Examples (2)

InteractiveMotor

EducationExamples.ElectricalEngineering.DCMotor.Components

Component that can be interacted with through Mathematica.

DCMotorModel

EducationExamples.ElectricalEngineering.DCMotor

DCMotor that is controlled by a unit step.