CONTROL SYSTEM ::
Control system is mean by which we can get the desired output.
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.
The Role of Control Theory :
To design a controller that makes a system behave in a desirable manner, we need a way to predict the behav-
ior of the quantities of interest over time, specifically how they change in response to different inputs.
Mathematical models are most oftenly used to predict future behavior, and control system design methodolo-
gies are based on such models. Understanding control theory requires engineers to be well versed in basic
mathematical concepts and skills, such as solving differential equations and using Laplace transform. The role
of control theory is to help us gain insight on how and why feedback control systems work and how to sys-
tematically deal with various design and analysis issues. Specifically, the following issues are of both practi-
cal importance and theoretical interest:
1. Stability and stability margins of closed-loop systems.
2. How fast and smooth the error between the output and the set point is driven to zero.
3. How well the control system handles unexpected external disturbances, sensor noises, and internal dynamic
changes
A control system is a system, which provides the desired response by controlling the output.
Other words we change the system function in as per the requirements.
Their are two types of control system:-
i) Open loop system
ii) Close loop system
Control system is mean by which we can get the desired output.
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.
The Role of Control Theory :
To design a controller that makes a system behave in a desirable manner, we need a way to predict the behav-
ior of the quantities of interest over time, specifically how they change in response to different inputs.
Mathematical models are most oftenly used to predict future behavior, and control system design methodolo-
gies are based on such models. Understanding control theory requires engineers to be well versed in basic
mathematical concepts and skills, such as solving differential equations and using Laplace transform. The role
of control theory is to help us gain insight on how and why feedback control systems work and how to sys-
tematically deal with various design and analysis issues. Specifically, the following issues are of both practi-
cal importance and theoretical interest:
1. Stability and stability margins of closed-loop systems.
2. How fast and smooth the error between the output and the set point is driven to zero.
3. How well the control system handles unexpected external disturbances, sensor noises, and internal dynamic
changes
A control system is a system, which provides the desired response by controlling the output.
Other words we change the system function in as per the requirements.
Their are two types of control system:-
i) Open loop system
ii) Close loop system
Helpful Discription. I like such a simple language.
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