Simulink scope giving out "noisy" output
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
So I have a simulink model that gives output of error signal fed back to a PID controller. The problem is that its very "noisy" (as can be seen below); whereas it is supposed to be flat (as shown in the 2nd picture). I can see that the shape of the noisy response is overall similar to the correct one; its just the noisy oscillations that make them different. Does anyone know why? I have chosen a stiff ode solver but this problem keeps persisting.![aekx5ucub0131.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/221611/aekx5ucub0131.png)
![aekx5ucub0131.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/221611/aekx5ucub0131.png)
2 comentarios
Raj
el 29 de Mayo de 2019
You have not attached any 2nd picture. Did you try adjusting the tolerances?
Arvind Sathyanarayanan
el 31 de Mayo de 2019
Ariel, attaching the model will help us answer the question better.
Are your reference and feedback signals noise free? Have you tried playing with your PID gains?
Respuestas (0)
Ver también
Categorías
Más información sobre PID Controller Tuning en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!