Algebraic loop error, how to solve?
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Ale_798 el 18 de Sept. de 2023
The Simulink simulation I am running produces an algebraic loop error because of this part of the scheme:
A delay block just after the port DELTA_U(k) actually solves the problem, however I cannot use this solution because such a block introduces some strange dynamics in the system and it does not work as it should.
How can I solve this problem in an alternative way?
Note: I don't know if this information is relevant, but such an error appears only in one particular condition. I am given 10 different set of parameters for the system: by running the simulation with each of them, only a warning about the algebraic loop is produced, and in 9 cases the system works perfectly fine anyway. The simulation stops with an error only when using one of these sets.
Fangjun Jiang el 18 de Sept. de 2023
There is no algebraic loop here. Giving what ever value to DELTA_U(k), "f" can be calculated without problem.
If you feed the output of the "Interpreted MATLAB Fcn" to DELTA_U(k), then it is an algebraic loop.