策划一个连续信号the frequency domain
4 views (last 30 days)
Show older comments
Hello all,
I have simulated a single phase electrical distribution network in simulink using the SimPowerSystems library and I need to perform some signal analysis on it. I need to obtain a plot of the electrical signal (either voltage or current) in the frequency domain however this is proving rather difficult as it is a continuous signal.
I have been using the FFT magnitude block with a zero order hold and buffer fed into a vector scope with a frequency input domain. This setup works fine when I simulate the system with a discrete signal input. Once I change the signal to continuous, after making a few adjustments to some of the blocks' settings, I get a blank plot.
Can anyone help me remedy this problem?
Thanks
0 Comments
Accepted Answer
Arnaud Miege
on 5 Aug 2011
Use the FFT Analysis in the
PowerGUI
block. See
Performing Harmonic Analysis Using the FFT Tool
in the documentation for more details. You'll probably need to discretize your electrical network with the PowerGUI first. The demo model
power_bridges
shows an example of that.
HTH,
Arnaud
More Answers (0)
See Also
下载188bet金宝搏
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!