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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36 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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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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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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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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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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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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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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Regulatory PID (Polish)
18 min
Beginner
Video
Theory
W tym odcinku, opisze wam podstawy działania regulatorów PID.
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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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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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Direct Synthesis for PID Design Intro
11 min
Beginner
Video
Theory
Direct Synthesis for PID Design Intro
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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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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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Direct Synthesis for PID Controller Design
12 min
Beginner
Video
Theory
What tuning parameters should you choose for your controller? The Direct Synthesis Model is one method control engineers use today to evaluate controller par...
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Peter Ponders PID, Natural Frequency vs Frequency of Acceleration
9 min
Beginner
Video
Theory
This video is intended for servo hydraulic system designers and those that program hydraulic servo systems but it does show how several of the techniques sho...
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Standard HW Problem #1: PID and Root Locus
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...
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Peter Ponders PID - Cascade Control Part1
20 min
Beginner
Video
Theory
I cover whether cascade control is necessary. Why there needs to be a feed back for every loop. How to calculate gains. Bode plots and ratio of the inner t...
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Auto Tuning a Small DC Motor in Torque Mode
1 min
Beginner
Video
Theory
I was really testing the picture in picture feature of the Screen Flow software I use to make these videos. I knew the auto tuning would work. I kept the v...
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Direct Design Example for PID Controller
7 min
Beginner
Video
Theory
I go through an example problem of how we can use Direct Design (also called Direct Synthesis) to determine the tuning parameters for a PID controller, given...
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Peter Ponders PID - Closed Loop Zeros
13 min
Beginner
Video
Theory
This video covers closed loop zeros, what causes zeros and the benefits and drawbacks of closed loop zeros.
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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 - Cascade Control Part2
14 min
Beginner
Video
Theory
The inner loop pole locations and gains are calculated first so the inner loop pole locations are determined by the user. The outer loop poles are still pla...
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Peter Ponders PID - Controlling a non-integrating single pole system. Part 3...
9 min
Beginner
Video
Theory
Part 3 uses PI control which is the only practical means of control a non-integrating single pole system.http://deltamotion.comhttp://forum.deltamotion.com
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