Speed Control of a DC Motor
Speed control mechanisms have a wide range of applications, ranging from supervising the motion of elevators to steering an autonomous vehicle. This example shows a workflow of how you could create a speed controller for a DC motor.
Create a Model
Create a model of the DC motor graphically or programmatically.
Built-in example of a DC motor in System Modeler is loaded in the Wolfram Language.
Linearize the Model
Linearize the model around the equilibrium.
A linearized state-space representation of the DC motor is obtained.
Create a Controller
Create a controller using the control system functionality.
A PID controller is created that is good at rejecting disturbances, as well as following changes in the reference.
Connect the Controller
Create a controlled system by automatically connecting the controller to the model in a closed loop.
The PID controller is automatically connected with the DC motor.
Test the Controlled System
Test the controlled system for a reference input and a set of disturbances.
The DC motor attains the reference speed and maintains it despite the disturbances.