My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this?
The code for the project is below in three images, it is Steve bruntons genetic algorithm coding. https://youtu.be/S5C_z1nVaSg?t=470
I assume the u variable is the duty ratio but I am not sure.
The last image is the control system attempted to be controlled. The transfer function is an adequate fit for the system.
Thanks in advance, if anymore information is desired please ask away.
https://fr.mathworks.com/matlabcentral/answers/753884-how-to-constrain-genetic-algorithm-input-u/?s_tid=mlc_lp_leaf
Is there a reason why you are using a pre-built genetic algorithm? I did a lot of these optimization codes and each time, I wrote my own codes. This gives you a lot of flexibility, in terms setting the constraints on your input as well as the controller gains. But for that, you should now the linearized form of your buck converter around an operating point.
Hi Syed A. Raza
There are various reasons as to why I am using a pre-built algorithm such as the following
- limited on time
- Very inexperienced with any coding so this would of taken a long time from scratch
- Unnecessary to do from scratch due to this code fitting my project well
- and various others reasons which I can divulge if requested
I currently have the problem of trying to limit my controller k to an output of 0 to 1 to allow my actuator to not become over saturated. The linearized buck converter is on image 1 coding line 6 denoted as G=. The operating point is that of 5volts. I would struggle on knowing how to limit any controller whether with this code or another, as such the flexibility of which you speak of would not be of great usage to me who is a newbie to this field with limited time.
best regards
James
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