How can i fit complex data to a model of a RLC circuit?

5 次查看（过去 30 天）

André Steibel 2020-4-29

回答： Lorenzo 2023-1-28

I'm trying to fit x data for frequency and y data for impedance (complex values) and I have done a model of a RLC circuit with the equation

and i have to find the parameters (vector p) that best fit this equation to the data I have.

I have already used funcions like vpasolve, fminsearch, particleswarm, fitnlm and simulannealbnd but all of them were without succes.

darova 2020-4-29

Did you try fit?

Alex Sha 2020-4-30

Hi, Andre, post out your data please.

Lorenzo 2023-1-28

Hello André,

If I understand it correctly you want to find the parameters p, so that your model answer is similar to a measured data?

If that is the case, it sounds like a use-case for Simulink Design Optimization. Here you find an example for a parameter estimation of a DC-motor.

Best,

Lorenzo

Physical Modeling Simscape Electrical Electrical Block Libraries Passive

在 Help Center 和 File Exchange 中查找有关 Passive 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by