How to eliminate loop error?

Hii

I have made a PV model with matlab function..but when I run it it shows the following error

Algebraic state in algebraic loop containing 'PV_panel/PV PANEL/PV Panel/Voltage Measurement/do not delete this gain' computed at time 0.0 is Inf or NaN. There may be a singularity in the solution.If the model is correct, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

How to get rid of this error??

The matlab function works when it is not connected..but shows error when connected.

Thank you

[Azzi Abdelmalek]

Are you using simulink? post your function

[ALI]

yes i use simulink, i now this problem also.

Answer 1

[arul]

Dear Vidya.... You will add unit delay or memory block in the feedback loop.......with some time delay....

after that you won't get algebraic error....

 Thank you

Answer 2

[Eristoff Abhi]

Can you add some snapshot of your model where you are getting this error ?

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

Answer 3

[ALI]

Hi I have made a PV model with matlab simulink..but when I run it it shows the following error

Algebraic state in algebraic loop containing 'schemacomplet/Asservissement courant Correcteur PI/Sum' computed at time 0.0 is Inf or NaN. There may be a singularity in the solution. If the model is correct, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

How to get rid of this error??

thank you