Flywheel Energy Storage System - FESS

Hello everyone!

Does anyone have a simulation of a flywheel energy storage system with back-to back converters AC-DC-AC? I've searched everywhere and couldn't find one.

On this subject is based my Bachelor's Degree and it'd be very useful for me.

Thank you.

[mohmathlab norman]

I am facing the same issue. Did you get any effective model design regarding flyfeel.

[Marina-Alexandreea ANITA]

Nope, I did not. If you do, please contact me, I really need it.

[Sahraoui Djalilo]

Hello, Have you found a solution? Thank you

[Sahraoui Djalilo]

i have some thesis about DEVELOPMENT OF POWER CONDITIONING CONTROL STRATEGIES FOR FLYWHEEL STORAGE

i searching for simulimk model for the flywheel

Answer 1

[mark li]

I also have the same problem, and I am trying to solve it, but I find that I can't understand the specific implementation of the paper, which may be related to my major is not electrical.

I would like to communicate with you about this project.

[Marina-Alexandreea ANITA]

Of course. But I don’t know any methods to talk here.

Maybe I can give you my email.

[Sam Chak]

What is the progress so far? Modeling the Flywheel, or designing the Energy storage part?

Which part of the work is related to MATLAB? Is it optimization of the storage?

[Marina-Alexandreea ANITA]

So, basically, my degree project is based on the simulation of a FESS, by changing some parameters and see the evolution.

I am interested in finding a simulation to modify. But the problem is modeling the flywheel.

If you have one, please share it with me.

Thank you.

[Sam Chak]

Do you have the info about the flywheel?

Do you describe the mechanical motion of the Flywheel like ?

[Marina-Alexandreea ANITA]

E=1/2 * Jw^2

[Sam Chak]

Ok @Marina-Alexandreea ANITA, derive the model out of it using the Euler-Lagrange approach. It's a little calculus heavy. By hand, you will acquire the knowledge.

However, since this forum is about solving problems in MATLAB, I guess you should learn about this powerful functionalDerivative().

help functionalDerivative

--- help for sym/functionalDerivative ---

 FUNCTIONALDERIVATIVE Euler Operator.
    G = FUNCTIONALDERIVATIVE(f,x) computes the functional derivative of
    the symbolic scalar expression f with respect to the vector x
    of variables.
    All variables in x must be symbolic functions or symbolic
    function calls depending on the same independent variables.
 
    Example 1:
      >> syms x(t) y(t);
      >> functionalDerivative(x*y*diff(x,t)+diff(y,t)*diff(y,t,t,t),[x,y])
 
      ans(t) =
 
                                -x(t)*diff(y(t), t)
      x(t)*diff(x(t), t) - 2*diff(y(t), t, t, t, t)
 
    Example 2:
      >> syms u(x,y);
      >> functionalDerivative(sqrt(1+diff(u,x)^2+diff(u,y)^2), u)
 
      ans(x,y) =
 
         -(  diff(u(x, y), y)^2*diff(u(x, y), x, x) ...
           + diff(u(x, y), x)^2*diff(u(x, y), y, y) ...
           - 2*diff(u(x, y), x)*diff(u(x, y), y)*diff(u(x, y), x, y) ...
           + diff(u(x, y), x, x) + diff(u(x, y), y, y) ...
          )/(diff(u(x, y), x)^2 + diff(u(x, y), y)^2 + 1)^(3/2)

    Documentation for sym/functionalDerivative
       doc sym/functionalDerivative