Boost converter modeling in simulink

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vishnu vardhan 2015-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/182926-boost-converter-modeling-in-simulink

回答： Radha Krishna Maddukuri 2015-3-13

Hi everyone, i am trying to model the current mode control of boost converter(closed loop)in simulink in Continuous mode.so when i try to feedback the current output from inductor as reference to compare with the error i see a algebraic loop error saying that your model is ill defined.can anyone help me out with this? thanks in advance.

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Answer 1

Radha Krishna Maddukuri 2015-3-13

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Hi Vishnu,

I see that you have met with an algebraic loop in your Simulink Model.

To eliminate this message, you can do the following: Configuration Parameters(Ctrl+E) --> Diagnostics --> Algebraic Loop --> choose noe from the drop-down.

However, as the error message points out, it is not a good practice to have Algebraic Loops in your model.

Therefore I suggest you to go through the following solution by MathWorks Support Team:

What are algebraic loops in Simulink and how do I solve them?

This solution gives a clear understanding of Algebraic loops, and it also sheds light on resolving them with better practices for modelling.