Error in PV modeling: Nonlinear solver to advance time one step failed to converge due to Linear Algebra error. Failed to solve using iteration matrix.

Hi everyone,

I am trying to model a Photovoltaic system as the picture below. in the case I used serie connection I had no problem but for the parallel one I get the folowing message:

Nonlinear solver to advance time one step failed to converge due to Linear Algebra error. Failed to solve using iteration matrix.

have someone any tips to solve such a problem?

Answer 1

[Shivam Lahoti]

Hi Amirali,

I understand you are getting the follwing error:

"Nonlinear solver to advance time one step failed to converge due to Linear Algebra error. Failed to solve using iteration matrix."

To resolve this issue and use a local solver, you can try to increase the number of nonlinear iterations by double-clicking on the 'Solver Configuration' block and modifying the appropriate field.

For further information on how to set-up solvers for physical models, please refer to the link below:

https://www.mathworks.com/help/physmod/simscape/ug/setting-up-solvers-for-physical-models.html

For further details on how to make optimal solver choices for Simscape models, please refer to the following link:

https://www.mathworks.com/help/physmod/simscape/ug/making-optimal-solver-choices-for-physical-simulation.html

I hope this was helpful.

Regards,

Shivam.