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CONTROL SYSTEMS Control is used to modify the behavior of a system so it behaves in a specific desirable way over time. For
 

Summary: CONTROL SYSTEMS
Control is used to modify the behavior of a system so it behaves in a specific desirable way over time. For
example, we may want the speed of a car on the highway to remain as close as possible to 60 miles per hour
in spite of possible hills or adverse wind; or we may want an aircraft to follow a desired altitude, heading,
and velocity profile independent of wind gusts; or we may want the temperature and pressure in a reactor
vessel in a chemical process plant to be maintained at desired levels. All these are being accomplished today
by control methods and the above are examples of what automatic control systems are designed to do,
without human intervention. Control is used whenever quantities such as speed, altitude, temperature, or
voltage must be made to behave in some desirable way over time.
This section provides an introduction to control system design methods. P.A., Z.G.
In This Section:
CHAPTER 19.1 CONTROL SYSTEM DESIGN 19.3
INTRODUCTION 19.3
Proportional-Integral-Derivative Control 19.3
The Role of ControlTheory 19.4
MATHEMATICAL DESCRIPTIONS 19.4
Linear Differential Equations 19.4
State Variable Descriptions 19.5
Transfer Functions 19.7
Frequency Response 19.9

  

Source: Antsaklis, Panos - Department of Electrical Engineering, University of Notre Dame

 

Collections: Engineering