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.
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Proportional-Integral-Derivative (PID) Controller
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46 items
Understanding PID Control, Part 1: What is PID Control?
11 min
Beginner
Video
Theory
Chances are you’ve interacted with something that uses a form of this control law, even if you weren’t aware of it. That’s why it is worth learning a bit more about what this control law is...
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Understanding PID Control, Part 5: Three Ways to Build a Model
13 min
Beginner
Video
Theory
Tuning a PID controller requires that you have a representation of the system you’re trying to control. This could be the physical hardware or a mathematical representation of that hardware...
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Advances in feedforward control for measurable disturbances
35 min
Intermediate
Video
Theory
The efficient compensation of load disturbances is one of the most important tasks in any control system. Most industrial processes are affected by disturbances and only feedback is commonly...
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Understanding PID Control, Part 7: Important PID Concepts
12 min
Beginner
Video
Theory
Now that you ’ve gotten an overview of PID tuning techniques, this video moves on to discussing two important concepts in PID control: cascaded loops and discrete systems. Both concepts are...
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i-pIDtune: An interactive tool for integrated system identification and PID ...
Intermediate
App
Application
i-pIDtune is an interactive software tool that integrates system identification and PID controller design. The tool supports experimental design and execution under plant-friendly conditions...
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Understanding PID Control, Part 4: A PID Tuning Guide
12 min
Beginner
Video
Theory
It can be difficult to navigate all the resources that promise to explain the secrets of PID tuning. Some proclaim that PID tuning is an art that requires finesse and experience, while...
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ITCRI: An Interactive Software Tool for Control-Relevant Identification
Intermediate
App
Application
The Interactive Tool for Control Relevant Identification (ITCRI) comprehensively captures the control-relevant identification process, from input design to closed-loop control, depicting...
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Advances in feedforward control for measurable disturbances (in Spanish)
60 min
Intermediate
Video
Theory
The efficient compensation of load disturbances is one of the most important tasks in any control system. Most industrial processes are affected by disturbances and only feedback is commonly...
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Understanding PID Control, Part 6: Manual and Automatic Tuning Methods
13 min
Beginner
Video
Theory
The previous video showed three different approaches to developing a mathematical model of your physical system. Now that we have this model, we can use it to tune a PID controller that will...
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Advances in Feedforward Control for Measurable Disturbances (slides)
Intermediate
Presentation
Theory
These slides present several contributions to improve the feedforward control approaches when inversion problem arise: the ideal compensator may not be realizable due to negative delay...
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First Order Plus Dead Time Tuning App for PI Controllers
Intermediate
App
Application
The FOPTD_PI Tool is a Matlab-Interactive tuning tool of PI controllers for First Order PlusTime Delay processes. It can be used to teach basic control concepts based on a set of PI tuning...
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PID Controller Implementation in Software
20 min
Intermediate
Video
Application
How to implement a PID controller in software using C, discussing theory and practical considerations. Demonstration of PID controller code using a custom flight simulator.
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Interactive Tool about control signal saturation (windup) with PID control
Intermediate
App
Application
The purpose of this module is to give a familiarity with the phenomenon of integral windup and a method for avoiding it. The module shows process outputs and control signals for unlimited...
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Interactive Tool for Loop Shaping understanding based on PID control
Intermediate
App
Application
Loop shaping is a design method where it is attempted to choose a controller such that the loop transfer function obtains the desired shape. In this module the loop transfer function is...
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Peter Ponders PID - Introduction
3 min
Beginner
Video
Theory
The purpose of this video is to inform the viewer about what to expect. My videos go much deeper than the typical videos. They are geared for graduate st...
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Interactive Tool about PID tuning rules
Intermediate
App
Application
Hundreds of PID design methods are available in literature. Many of them are very similar and sometimes it is not straightforward to understand their purposes. This interactive software tool...
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Regulatory PID (Polish)
18 min
Beginner
Video
Theory
W tym odcinku, opisze wam podstawy działania regulatorów PID.
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Interactive Tool for PID understanding
Intermediate
App
Application
The module PID Basics is designed to explore the properties of a simple feedback loop by showing the time and frequency responses of a closed-loop system and demonstrating how these...
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Peter Ponders PID - Why PID with 2nd Derivative Gain?
27 min
Beginner
Video
Theory
If you have ever tuned a hydraulic system and wondered why PID control didn't work better than PI control the answer is here. Since the 1980s people have kn...
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Simple Examples of PID Control
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...
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Peter Ponders PID - Integrated Time Absolute Error - 4 Pole example
17 min
Beginner
Video
Theory
This video shows how to calculate the coefficients for a 4 pole ITAE and how to use the 4 pole ITAE to calculate closed loop controller gains.
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Peter Ponders PID-Fuzzy Logic vs PID
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...
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Cascade Control Intro
8 min
Beginner
Video
Theory
How can we improve the disturbance rejection of our controllers using additional, relevant measurements? Tune in to find out!
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Peter Ponders PID - T0P1 Part 4, Misc Topics
20 min
Beginner
Video
Theory
This video covers another way to compute symbolic gains, the difference between having the P gain act on the error or just the feedback, extending bandwidt...
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PID Control - A brief introduction
7 min
Beginner
Video
Theory
In this video, I introduce the topic of PID control. This is a short introduction design to prepare you for the next few lectures where I will go through several examples of PID control....
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