Process Dynamics and Control (419307), 7cr Kurt-Erik Häggblom 2 . Basic control concepts 2.1 Signals and systems 2.2 Block diagrams 2.3 From flow sheet to block diagram 2.4 Control strategies 2.5 Feedback control. Process Control Laboratory. 2. Basic control concepts.
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Process Dynamics and Control
There are two types of input signals:
Generally, signals are functions of time , which we can indicate by
and .
Process Dynamics and Control
A signal is (usually) a physical quantity or variable. Depending on the context, the term “signal” may refer to the
In practice, this does not cause confusion.
The value of a signal may be known if it is a measured variable. In particular,
A system is a
Process Dynamics and Control
A block diagram is a
Process Dynamics and Control
The blocks in a block diagram consisting of several blocks are connected via their signals. The following algebraic operations on signals of the same type are often needed:
Process Dynamics and Control
Process Dynamics and Control
Process Dynamics and Control
Process Dynamics and Control
Process Dynamics and Control
Process Dynamics and Control