Control Systems

Fuzzy Controller and its Industrial Applications

Fuzzy logic is a human model, potentially applicable to a wide range of processes and tasks that require human instinct…

2 years ago

Transfer Functions and Block Diagrams of Control Systems

Transfer Functions A transfer function is a mathematical formulation that relates the output variable of a device to the input…

3 years ago

A Digitally Controlled Drill Press

The diagram below shows a digital control system for a drill press that includes: the input, digital processor, drill-positioning mechanisms,…

3 years ago

Basic Elements of a Digital Controller for a Steam-Turbine Driven Generator

The block diagram below illustrates the basic elements of a minicomputer system for speed and voltage control as well as…

3 years ago

How to Tune the PID Controller

Before we discuss how to tune the PID controller, let’s look at some basic facts about PID Controller. Basic Facts…

4 years ago

Ratio Control

In some processes, it is a common requirement for two flows to be kept in precise ratio to each other…

4 years ago

Feedforward Control

Feedforward control is based on principle of pre-emptive load counter-action i.e. if all major loads (i.e. disturbances) on a process…

4 years ago

Benefits of Cascade Control

We know very well that closed loop control provides increased performance over open loop control. So it would be rational…

4 years ago

Proportional-Integral-Derivative (PID) Control Systems

Proportional-Integral-Derivative For processes that are able to operate with continuous cycling, the relatively inexpensive two position controller is sufficient. For…

4 years ago

Proportional plus Derivative (PD) Control System

Proportional plus derivative (rate) control is a control mode in which a derivative section is added to the proportional controller.…

4 years ago