Hi,
To my understanding, you want to measure the frequency response of a 13th harmonic filter and are getting incorrect results. It appears to me that the ‘impedance calculator’ for the ‘powergui’ block does indeed give the expected result, with the impedance value being the lowest at 780 Hz for the 13th harmonic, as shown in the image below.
Here is a screenshot of the model I used, which produced the above result. The values of inductance and capacitance are set to match yours.
If you are not seeing this result, there may be discrepancies due to incorrect blocks or connections in the model.
You may refer to the example ‘three-phase harmonic filter’ model provided in the documentation below to ensure that your setup is correct:
For more information on three-phase harmonic filters you may refer to the below documentation:
Feel free to share your model to help debug if the issue persists.