loop algebraic and variable signal

6 Ansichten (letzte 30 Tage)
carlos andres
carlos andres am 7 Feb. 2011
Hi....i need help with a algebraic loop ...
I am developing a dinamic system, where i need that my sfunction have inputport that receive variable signal....i have solved the problem of inputport and outport dinamically but my s-functions is feedback then i have the following errorand don`t know to solve.
Block 'untitled/Control del Ciclo' has variable-size signals, and it resides within an algebraic loop. Variable-size signals do not support algebraic loops. Consider eliminating the algebraic loop.
please help me..

Antworten (2)

Sebastian
Sebastian am 8 Feb. 2011
As the error message states, the iterative solver for algebraic loops is not able to solve the loop in your system because it involves variable-size signals. In that case the loop needs to be eliminated by a redesign of the model or by breaking the loop by adding a Memory block for instance.

Vieniava
Vieniava am 8 Feb. 2011

You may try to insert unit delay block

into the feedback line. Of course if this delay isn't critical for your simulation aim.

Kategorien

Mehr zu General Applications finden Sie in Help Center und File Exchange

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by