How can I avoid Algebraic loops In these equations

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Anuj
Anuj 2014-1-27
评论： Anuj 2014-1-28
Hi,
I Have two equations of the form-
1) dy/dt = A - By - Cdx/dt + Dx, and
2) dx/dt = E - Fx - Gdy/dt + Hy.
I want to apply them in a Simulink model, Is there any way I can do it without using Algebraic loops?
Thanks

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采纳的回答

A Jenkins
A Jenkins 2014-1-28
If you are smart about it, you may be able to avoid a memory block. Depending on the properties of your numbers (for example, if 1+GC is invertible), you may be able to rewrite the equations:
dy/dt = A-B*y-C*(dx/dt)+D*x
dx/dt = E-F*x-G*(dy/dt)+H*y
dx/dt = E-F*x-G*(A-B*y-C*(dx/dt)+D*x)+H*y
dx/dt = (E-F*x-G*(A-B*y+D*x)+H*y)/(1+GC)

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Mischa Kim
Mischa Kim 2014-1-28
  1 个评论
Anuj
Anuj 2014-1-28
That one suggests to include delay or memory, but in the above system how will i use delay/memory?

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