How do I dq0-transform voltage and current in phasor-mode?
7 views (last 30 days)
Show older comments
Hi, I'm trying to conduct a dq0-transform with simPowersystems in phasor-mode. My model is a very basic one, 3phase-voltagesource (400 V, 50 deg, 50 Hz) connected to an inductor in series and then to another 3phase-voltagesource (400 V, 0 deg, 50 Hz). I'm using the block "abc to dq0" and it seems to work in continuous-mode but not in phasor(50 hz)-mode.
I've searched for solutions but I haven't found any that made me wiser.
Can someone point me at the right direction?
0 Comments
Answers (1)
Sebastian Castro
on 25 Jun 2015
What exactly are you trying, and how does it not work? Do you have a screenshot and/or error message?
My understanding is that Phasor mode makes the assumption that "wt" is periodic at the prescribed frequency (in your case, 50 Hz). So, "t" is simply your simulation time which you can pick out using a Clock block in the Simulink > Sources library. Therefore "wt" is that time multiplied by the frequency in rad/s (2*pi*50).
- Sebastian
2 Comments
Sebastian Castro
on 25 Jun 2015
Yeah, when you switch to phasor mode it changes the format of the voltages. You can look at the Three-Phase V-I Measurement and notice that you can output different formats like Complex, Magnitude-Phase, just Magnitude, etc.
The default is "Complex", so if you change to one of the other settings your data types will at least match... though I'm not sure what it means to do this transform on the phasor representation magnitudes and/or phases.
See Also
Categories
Find more on Simscape Electrical in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!