Feedforward Control
Intermediate
Article / Blog
Application
When a Ratio Control strategy takes action too soon, use Feedforward to temper the dynamics. When a disturbance can be measured, but would not be a ratio of the control output use...
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READ FIRST: How to learn PLC's and get into the Industrial Automation World ...
Beginner
Article / Blog
Theory
r/PLC is dedicated to discussion and questions about Programmable Logic Controllers (PLCs): "an industrial digital computer that has been ruggedized and adapted for the control of...
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Ratio Control - the right and wrong approach
15 min
Intermediate
Article / Blog
Application
A discussion as to why the ratio should be the MV (controller output) not the CV.
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Základy automatizácie a teórie systémov – videokurz (Slovak)
Beginner
Article / Blog
Theory
Pozrite si videokurz zo základov teórie systémov a automatizácie. Náš kurz má 7 lekcií.
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Linear Model Identification Basics
Intermediate
Article / Blog
Application
This is a curated list of Mathworks products, examples, and topics that cover identifying linear models, selecting suitable model structures, constructing and modifying model object...
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Directivity and Antenna Gain - radartutorial.eu
Beginner
Article / Blog
Theory
This page describes antenna directivity and gain. The directivity of an antenna is the ratio of the power density S (radiant intensity per unit area) of the real antenna in its main...
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Understanding P, I, and D
30 min
Intermediate
Article / Blog
Theory
Understanding what the proportional, integral, and derivative terms do within the PID controller is essential to choose appropriate action, trouble shoot controllers, chose appropriate...
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Cascade Control
15 min
Intermediate
Article / Blog
Application
When and how to use Cascade Control
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Adaptive Control (Part II) —Modeling the X-15’s Adaptive Flight Control Syst...
Intermediate
Article / Blog
Theory
This blog post shows how to build from scratch a Simulink model of the famous MH-96, the X-15's Adaptive Flight Control System
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What are Nonlinear ARX Models?
Intermediate
Article / Blog
Theory
This Mathworks page provides an overview of Nonlinear ARX Models.Nonlinear ARX models extend the linear ARX models to the nonlinear case. The structure of these models enables you to model...
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FOPDT Models from Skyline Inputs
20 min
Intermediate
Article / Blog
Application
The classic textbook method to generate FOPDT models is the reaction curve technique, a pre-computer era technique: Start from a steady state, make a step and hold in the controller output...
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Gain Scheduling (Pre-programmed Controller Parameter Adjustment)
Intermediate
Article / Blog
Application
Process gain and time-constants change with operating flow rate, tank levels, temperatures, etc. This often requires re-tuning of the controller coefficient values. However, once done...
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The Linear Quadratic Regulator
Beginner
Article / Blog
Theory
In these notes, we will derive the solution to the finite-horizon linear quadratic regulator (LQR) problem in several different ways. Fundamentally, LQR can be viewed as a large least...
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Computer Aids for Chemical Engineering
Beginner
Article / Blog
Theory
A curated list of resources for Chemical Engineering students. The resources include syllabi, schedules, course notes, textbooks, screencasts, software, hardware, and other useful links.
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My Sole Advise to Data Scientists on Coursera & Quora
Beginner
Article / Blog
Theory
This blog post by Tarry Singh answers questions including "How do I get started in the field on Machine Learning, Deep Learning or Artificial Intelligence" and "How do I advance from the...
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MATLAB Discovery Page - Anomaly Detection
Beginner
Article / Blog
Theory
Anomaly detection is the process of identifying events or patterns that differ from expected behavior. Anomaly detection can range from simple outlier detection to complex machine learning...
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Output Characterization to Linearize a Loop - Control valve application
20 min
Intermediate
Article / Blog
Application
This application paper explains how a control valve created nonlinearity in a loop and how output characterization solved the problem
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Override and Reset Feedback
15 min
Intermediate
Article / Blog
Application
Override controllers are for safety or switching to auxiliary variables. The non-selected controller needs to prevent becoming wound up.
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Basic course of control theory (Hungarian and English)
Beginner
Article / Blog
Theory
The basic course of control theory is taught in the 3rd year for the students specialized in information technology at the Faculty of Electrical Engineering and Informatics of the Budapest...
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The Radar Range Equation - radartutorial.eu
Beginner
Article / Blog
Theory
This article describes the radar range equation. The radar range equation represents the physical dependences of the transmit power, which is the wave propagation up to the receiving of the...
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Understanding Valve Flow Characteristics
20 min
Intermediate
Article / Blog
Application
The response of flow rate through a control valve depends on the friction losses in the piping in which it is installed as well as the controller signal. The installed characteristic (a...
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Decoding a Laplace Representation of a Controller
20 min
Intermediate
Article / Blog
Application
A how to relate the Laplace notation to the PID controller variation and features
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The Linear Quadratic Regulator (LQR)
Intermediate
Article / Blog
Theory
Lecture notes for ECE717 on LQR control by Laurent Lessard. There is a section that shows how the Algebraic Riccati Equation is part of the LQR solution by "completing the square".
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Adaptive Control (Part I) — Hypersonics and the MIT Rule
Intermediate
Article / Blog
Theory
This blog post introduces the algorithm that ruled the adaptive flight control system of the first manned hypersonic aircraft, the North American X-15.
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Use First-Principles Modeling to Get FOPDT Coefficient Values
30 min
Intermediate
Article / Blog
Application
Conventionally, we obtain model coefficient values by open-loop step-testing of the process; but this creates undesirable process upsets, and only reveals the local process behavior. This...
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