DC-DC converter Error Initial conditions solve failed to converge.

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Hi, I'm quite new to Simulink and want to test the function of DC-DC converter. The picture below is the model I developed.
However, I came across these error:
Could anyone tell me how to solve this? Thanks in advance.
  3 Commenti
Joel Van Sickel
Joel Van Sickel il 23 Mar 2021
Hello,
you can start by putting a capacitor at the output of the dc/dc converter. You can set this to the appropriate output voltage initial condition in the variables tab.
Also, if it helpes, there is a free simscape onramp here: https://www.mathworks.com/learn/tutorials/simscape-onramp.html
Regards,
Joel
Vinay Gurram
Vinay Gurram il 22 Giu 2021
Hi
Can you check setting the priority of parameter from any block to low going to its variable tab.

Accedi per commentare.

Risposte (2)

Joel Van Sickel
Joel Van Sickel il 2 Lug 2021
you need to add an electrical reference to the output of this converter the way it works. (or short the output and input negative termals, or connect them with a large resistance to emulate isolation)
Regards,
Joel

Jasaswini Mohanty
Jasaswini Mohanty il 27 Ago 2021
Hi, I was facing a similar issue. Can you please try with local solver. open the f(x)=0 block and there you will see an option for local solver. check that box. Also, try with different solver options. Hope this helps.

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