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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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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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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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
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 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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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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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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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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Regulatory PID (Polish)
18 min
Beginner
Video
Theory
W tym odcinku, opisze wam podstawy działania regulatorów PID.
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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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Peter Ponders PID - IAE,ITAE,ISE Performance indicators
17 min
Beginner
Video
Theory
Performance indicators can be used to compute closed loop pole locations. Only one gain parameter is required to move the pole locations closer to the origi...
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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 - Controlling non-integrating single pole system. Part 1 ...
10 min
Beginner
Video
Theory
Part 1 shows why P only control shouldn't be used because the set point or target is never reached.Part 2 shows why I only control shouldn't be used because ...
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Peter Ponders PID. Second Order Plus Dead Time , SOPDT, Temperature Control,...
12 min
Beginner
Video
Theory
In this video I derive the equations for the controller gains and a low pass filter for a SOPDT system with a very long dead time To make the simulation mo...
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Peter Ponders PID - Controlling an Under Damp Mass and Spring System
24 min
Beginner
Video
Theory
Demonstrates:How to calculate the PID gains. The importance of the derivative gain. How to simulate the mass and spring systemControl limitations based on s...
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An interactive feedforward tool for FeedForward Control
Beginner
App
Application
This interactive software tool is focused on basic and advanced concepts of feedforward control.
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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 - 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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