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| Code Listing by Gilles |
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ANTI WIND UP is a simple Matlab Simulink file that allows user to analyze the behavior of 2 digital pid implementations. You can focus on command and process output when the actuator is saturated. You will see that the basic PID exibits an overshoot after an saturation of the actuator. This problem is avoided by using the anti-windup PID that controls the integration term.
The PRBS are based on 3 to 9 bits memory delays and put out 2^3 -1 to 2^9 -1 binary sequence length. Usage: these generators can be used in process identification as noise source on command signal
The effect of fixed-point arithmetic in 16-bits PID controller C routines
on the closed-loop precision is shown in this Simulink model.
Two Simulink blocks that implement single and double
precision 16-bits PID C routines are...
Design of a robust digital controller with PPR toolbox
This script shows the basic steps for the "digital two degrees of freedom controller" (2DOF) design with the PPR toolbox.
The illustration of our methodology is...
Run demo file included.
Double to fixed-point conversion with setting options like word length, signed/unsigned, automatic or manual scaling, guard bits...
This simulation illustrates the effects of the fixed-point
computations on the closed-loop precision for a 16-bits PID controller.
The rounding mode, the point where the truncations take place and the
format width for the internal... |
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