I have tried a delay differential equation in SIMULINK. While running the code, I am getting an error like "Derivative of state '15' in block 'Boring/Integrator' at time 0.038869123743967948 is not finite. The simulation will be stopped. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)".
Can anybody tell how to resolve this issue?
I would be grateful for your help
regards
Yuvaraju
You may try to tune up your solver (e. g. narrowing tollerances/reducing sampling step) but it seems you're dealing with a badly conditioned model. If you put a scope just before the integrator you'll likely see a diverging input.
You can solve it using an other variable step integration method
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