Change asynchronous machine block parameter during run time

Question

Ryhze 2023-8-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2013357-change-asynchronous-machine-block-parameter-during-run-time

回答： Govind KM 2024-9-12，9:34

Is there a way to change the value of the rotor resistance parameter during simulink runtime.

I have tried a few ways such as assigning a value to a input variable and trying to assign that variable to the rotor resistance value. But the block does not recognise that variable.

I have tried to use the simulink model properties initfunction and then try to change the value using pausefunction but that doesn't work.

I have tried to use set_param but my error is as follows.

Some of the error codes:

Is there any workaround for this?

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Answer 1

Govind KM 2024-9-12，9:34

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https://ww2.mathworks.cn/matlabcentral/answers/2013357-change-asynchronous-machine-block-parameter-during-run-time#answer_1515425

@Ryhze,

I understand that you want to change the parameters of the “Asynchronous Machine” block at model runtime. However, as per the documentation, the value of run-time parameters of Simscape blocks cannot be changed while simulation is running. As the “Asynchronous Machine” block is a part of the “Specialized Power Systems” library in Simscape, its parameters can only be modified when simulation is stopped. You can find more information in the below provided documentation:

https://www.mathworks.com/help/simscape/ug/how-simscape-run-time-parameters-differs-from-simulink.html#:~:text=You%20can%20only%20change%20the%20value%20of%20a%20run%2Dtime%20configurable%20parameter%20when%20a%20simulation%20is%20stopped

Hope this clarifies the issue.