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1. Notations and structure of the PID controller
1.1 Notations and definitions
The structure of the control system is shown in figure
1
: the transfer function of the controller is denoted C (s ) and that of the process G (s ), where s is the Laplace variable. The transfer function of the compensated open loop is therefore :
and that of the closed loop :
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Notations and structure of the PID controller
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