Using powergui FFT analysis to calculate the input power factor and the displacement power factor.

Hello,

I'm trying to calculate the input power factor and the displacement power factor for the 1-Phase Diode Bridge Rectifier seen below, using the FFT analysis tool in powergui. I've looked around on the web but I can only find the following 5 steps, that don't work:

1. connect scope
2. double click on the scope
3. change config properties: tick check box everything under logging, save as structure with time(this will send the data to power GUI block for FFT)
4. load matfile and then run simulation
5. launch-->Powergui-->FFT analyis

When I go into the FFT analysis tool it's all blank. Is there anything else I can do, since the above mentioned steps don't work?

Answer 1

[Sabin]

The FFT Analyzer app allows you to perform Fourier analysis of simulation data and provides access to all the simulation data that are defined as structure-with-time variables in your workspace. Structure with time (click to update) field allows to link the tool to simulation data.

https://mathworks.com/help/sps/powersys/ref/fftanalyzer-app.html

[Nathan]

@Sabin Can you provide instructions on how to set up the scope(s) for tracking Displacement Power Factor in a Monopolar HVDC Transmission system, like the example here: https://www.mathworks.com/help/sps/ug/thyristor-based-hvdc-transmission-system-detailed-model.html