How to create a closed loop with initial solution

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Nico0789 Mazzi 2013-9-19

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https://ww2.mathworks.cn/matlabcentral/answers/87699-how-to-create-a-closed-loop-with-initial-solution

I would like to create using Simulink a closed loop system in which i provide the initial solution to start the simulation and than the model has to do a loop every dt (es. 0.05 s) using the solution of the previous loop. How is it doable?

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Answer 1

A Jenkins 2013-9-19

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https://ww2.mathworks.cn/matlabcentral/answers/87699-how-to-create-a-closed-loop-with-initial-solution#answer_97290

You can feedback your previous result using a delay block or memory block.

The intial condition for either of these blocks can be set by double clicking on it.

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Nico0789 Mazzi 2013-9-20

thank you for the perfect answer! is possible to control the number of loops? for example can I impose the model to do 1 cycle per second?

A Jenkins 2013-9-20

Try the "Unit Delay" block instead of Memory. You can set the sample time to be every 1 second.

(Depending on what you need to do, another simple option may be to change the solver in the Configuration Parameters to Fixed Step and set the step time to 1 second.)

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