Plotting Resistance vs Frequency Response

Hi,

I am attempting to plot resistance vs frequency based on a LISN (Line impedance stabilization network) circuit.

I placed a 1-A ac source across the connections and shorted the, which normally goes to the ac mains.

I want to plot the voltage across the current source. Then the impedance is that voltage divided by 1 A:and then ultimately plot the resistance vs frequency Below is my circuit and the intended result.

When I setect > 'Linear Point Point' > Output Measurement' and then go to the top menu > 'Analysis' > 'Control Design'> 'Linear Analysis' and then select 'Bode' Plot from the pop-up screen, I get an empty plot.

C1 = 8uf

C=0.25uF

R = 5

R1 = 1k

Inductor = 50uH

Any help would be apprecaited.

Regards,

Gus

Answer 1

[Paul]

Looks like the model also need an Input Perturbation to define the input to the transfer function. Should be on the same menu as Output Measurement.

[Gus]

I would not know how to set that up. I want to be able to take the voltage reading divided by the current reading and get the resistance vs frequency.

I don't think what I am doing is the correct approach.

[Paul]

I don't know if the approach is correct or not. I was just pointing out that if the Simulink Linear Analysis tool requires at least one input and one output to define the linearized model.

[Gus]

Follow-up question. I think I know what I need to do. Just take the Vout and I out and perform the transfer function to get the resistance.

Question: what block do I use to insert say a value of one using the electrical library. Whatever I use, it will not allow me to connect to the port highlighted in yellow.

[Gus]

It's alright, I figured it out. I used a function generator and a P-S converter.