Simulink RLC branch dependency on frequency

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I am using series RLC branch from simpowersystems. When I enter the capacitance value, there is no option for frequency. This is important in my model, because capacitive impedance changes with frequency.
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Sandhya Jetti
Sandhya Jetti on 31 Mar 2016
Thanks Muhammed! that makes sense. Also my supply voltage has pwm steps, so it is not pure sine. How can i measure capacitive impedance?
Shashank Subramaniam
Shashank Subramaniam on 6 Oct 2017
It has to do with the discrete or continuous option in powergui.

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Answers (1)

Sebastian Castro
Sebastian Castro on 31 Mar 2016
If you connect an Impedance Measurement block across the component, you can use the " Impedance vs. Frequency Measurement " option in the powergui block to get its impedance over a range of frequencies.
- Sebastian
  1 Comment
Grazia Todeschini
Grazia Todeschini on 12 Mar 2020
It seems to me that the question here is more how to model variable capacitance as a function of the frequency, rather than measuring the impedance of a component. Is this possible at all?

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