Lecture NotesBASIC CONTROL THEORYModule 5

In order to analyse and design a control system knowledge of its behaviour is required. This
behaviour will be considered in a mathematical sense and a system description using
mathematical terms is therefore required. The relationships between the variable quantities in s
system will then form what is called a mathematical model of the system. These mathematical
models are usually derived from applications of the laws of physics, e.g. Newton’s laws, laws of
energy and momentum conservation. The way to find a mathematical model of a system is called
modelling.L THEORY