Initializing discrete states with Matlab functions
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
retigi
el 5 de Jul. de 2018
Respondida: Mark McBroom
el 5 de Jul. de 2018
I have the following hypothetical system:
The discrete delay element uses input port to initialize its state when enabled. When I check the system steps in debug mode I realized that simulink continue to execute/output "matlab function" even after the delay element is initialized properly. Therefore simulink simply wastes computational power for no reason during simulation phase.
Is there a way to disable the matlab function block after the discrete delay is initialized?
0 comentarios
Respuesta aceptada
Mark McBroom
el 5 de Jul. de 2018
If you have a newer version of MATLAB, you can place your MATLAB Function block in a Simulink Initialize Function block as described here .
Alternately, you can use a pattern similar to the following to enable the MATLAB function for the first timestep only:
1. Put matlab fcn block into an enabled SS 2. Insert a constant block with value of zero, connect that to a unit delay block ( with initial value set to one) and then connect the unit delay block to the enabled SS. This should then only execute your matlab fcn block at init and t+1. It should be disabled for all subsequent time steps.
0 comentarios
Más respuestas (0)
Ver también
Categorías
Más información sobre Sources 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!