Topic

 

Proportional-Integral-Derivative (PID) Controller

A proportional–integral–derivative controller (PID controller or three-term controller) is a control loop mechanism employing feedback that is widely used in industrial control systems and a variety of other applications requiring continuously modulated control. A PID controller continuously calculates an error value, e(t), as the difference between a desired setpoint (SP) and a measured process variable (PV) and applies a correction based on proportional, integral, and derivative terms (denoted P, I, and D respectively), hence the name.

from PID Controller - Wikipedia

This topic includes the following resources and journeys:

 

 

Understanding PID Controller

Jay Mistry
13 min
Beginner
Article / Blog
Theory

This blog post begins by walking through the basics and the theoretical part of the PID controllers.  The controller is then tested, verified, and analyzed using MATLAB.

See More

Cascade Control Intro

Vincent Stevenson
8 min
Beginner
Video
Theory

How can we improve the disturbance rejection of our controllers using additional, relevant measurements? Tune in to find out!

See More

PID Tuner

PID Tuner
Intermediate
App
Application

Tuning a PID controller can be easily done using a systematic procedure. PID Tuner just put it in a web application. No more trial and error. 

Use the step response data from your system...

See More

Standard HW Problem #1: PID and Root Locus

Brian Douglas
18 min
Beginner
Video
Theory

A walk through of a typical homework problem using the root locus method to tune a PID controller. This is the first in what may be a series of homework style problems I'll cover. This is...

See More

Peter Ponders PID-Fuzzy Logic vs PID

Peter Nachtwey
10 min
Beginner
Video
Theory

There are many academic and engineering papers showing how good fuzzy logic control is relative to PID control. Every FL vs PID paper I have seen compares...

See More

Simple Examples of PID Control

Brian Douglas
13 min
Beginner
Video
Theory

In this video I continue the topic of PID control. We walk through a simple control system and visualize how each of the three paths, P, I, and D, all address specific problems that arise...

See More