I understand the use of delay block to break algebraic loops in your model. However, when you insert a delay block, on the first simulation step. it outputs its initial condition (zero by default). If the current sensor’s output is used in a feedback loop this initial zero or improper value can cause the calculations to become non-physical, leading to arbitrarily large value.
I recommend trying the following workarounds to resolve this issue:
- Set the initial condition of the delay block to a realistic value (e.g., the expected initial current at startup). In Simulink, double-click the delay block and set the initial condition parameter.
- Try using the Memory block instead of the Delay block: https://www.mathworks.com/help/simulink/slref/memory.html
- Try to restructure the model to avoid algebraic loops altogether, if possible.
I hope this helps!
