Hello every one. can some one help me with this?

Hello every one, I'm an electrical engineering student, and I'm trying to modelling and simulating a hydroeletric power plant.l I'm new at matlab and simulink, so i'm having lot of doubts about that.

I projected a station just like that bellow:

After that, when i try to compilate the project, i got this error:

I really have no idea about how to fix it. Can some one please help me with this? Thank you all :)

Answer 1

[Walter Roberson]

You need to resolve the link into the bottom of the Local Load block, in order to provide a value for the VRated input.

You need to open the Machine Mechanical Power (SI) block and look at the parameter fElectrical0 which you will find that you have defined in terms of FRated, but you have not defined FRated

You need to open the Reactive Compensation block and look at the parameter C which you will find that you have defined in terms of reactiveCompensationCapacitance, but you have no defined reactiveCompensationCapacitance

See https://www.mathworks.com/help/simulink/ug/parameter-values-and-specification-methods.html for ways you can define those parameters.

[Luana Aragao]

Thank you for replying!! :) I made the changes that you indicated to me, but now I'm having a time error. I don't know what is happening Can you please help me again?

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[Walter Roberson]

You can try either of those recommended actions.

However, probably you will need to remove the algebraic loop. See https://blogs.mathworks.com/simulink/2015/07/18/why-you-should-never-break-an-algebraic-loop-with-with-a-memory-block/