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From: Andr? Costa on 14 Oct 2009 22:41
"Nick " <nicholasDOTdenniston(a)qatarDOTtamu.edu> wrote in message <ggj06v$99g$1(a)fred.mathworks.com>...
> I'm using the PowerGUI Discrete simulation to simulate a closed-loop inverter. Every time I click on the FFT analysis, the waveform shown is from a simulation I completed yesterday. The following problems/errors occur:
>
> 1. The available structures to display do not change. I deleted all of the original scopes and put in new ones with different names, but the structure list does not update.
>
> 2. The waveform display shows the old signal. When trying to switch between "Display selected signal" and "Display FFT window", I get the following error in the MATLAB command window: "Reference to non-existent field 'SignalAxes'."
>
> 3. Upon clicking "Display", I get the following error: "Reference to non-existent field 'FftAxes'." Nothing changes in the FFT window.
>
> I have tried closing the file, renaming the file, closing and restarting MATLAB, restarting my computer, shutting down and restarting my computer; still, the PowerGUI pulls up results from yesterday's simulation. Any ideas?

You have to re-install the SimPowerSystems toolbox, because the psbfftscope.fig archive in the \\matlab\toolbox\powersys\powersys directory may be corrupted. Earliers versions of matlab (Before R2009) have a problem in this tool. Each time one clicks in "save", it saves a figure (.fig) in the place of the psbfftscope.fig archive. So, never click in "save", only click in "save as" to save a figure with this tool.
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