Error while simulating a model containing PV array

Hello I receiving the following error:

• Algebraic state in algebraic loop containing 'test2/PV Array/I Filter/First-Order Filter/Model/sum1' computed at time 1.6565 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)

Currently the solver is variable type in auto mode. The max, min, initial step sizes, and absolute sizes are auto and relative tolerance is 1e-8. Someone please help with the solution.

When the time constant of the PV arrays were greater than 1e-4 the model worked by the results were unsatisfactory.Someone please help with the solution.

Answer 1

[Ayush Gupta]

Refer to the following link for the various steps that can be followed in order to resolve algebraic loops in Simulink model:

https://www.mathworks.com/matlabcentral/answers/466337-why-do-i-get-algebraic-loop-error-when-using-pv-array?s_tid=answers_rc1-2_p2_BOTH

[Shubham Thorat]

Thank you . It worked . I reduced both the errors to 1e-8 and broke the loop in the PV array.