How to obtain the initial value of inductance or capacitance set in Systemmodeler in Mathematica?
- initial value of inductance
2)initial value of capacitance
Then attach my circuit in the attachments.
Model2.mo (5.55 KB)
model = SystemModel[“Model2”];
model[{“InitialValues”, {“inductor1.i”, “capacitor1.v”}}]
You can load the model in Mathematica as a System Model, and use the “InitialValues” property.
Thank you very much! Your answer gave me inspiration. Now I have another small problem, the questions are as follows:
I use initvalueil and initvaluevc in the code to obtain the values of inductor1.i and capacitor1.v, but the initvalueil value contains a dot, which causes me to be unable to operate correctly in the subsequent code. Could you tell me how this dot comes from and how can I eliminate this dot?
My code:
model = SystemModel["Model2"];
init = model[{"InitialValues", {"inductor1.i", "capacitor1.v"}}]
initvalueil = init[[1, 2]]
initvaluevc = init[[2, 2]]
Model2.mo (5.55 KB)
You can use the following function to get the integer value:
IntegerPart[(*variable*)]
Thank you！！！
Sir, I tested it today and found that “the solution error was not caused by the dot in the initial value mentioned yesterday”, but that after I set the initial values of capacitance and inductance, the state space equation could not be obtained normally using the SystemModelLinearize command. How can we solve it?
My code:
spacemodel = SystemModelLinearize["Model2",
Method -> {"SymbolicDerivative",
"SymbolicParameters" -> {"r", "l", "c", "k1", "k2"}}]
Then attach my circuit in the attachments.
Model2.mo (5.54 KB)