powergui and ideal ac source issue

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Timothy TenCate 2019-7-19

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评论： Timothy TenCate 2019-7-23

I created a simscape electrical model using the Specialized Power Systems blocks and the simulation worked great. I saved my work and shut down my computer and next day I opened the model again and now the ideal voltage source is giving me a non sinusoidal output and the powergui block icon has the diconnected symbol in the corner(not sure about this). I tried to recreate the model and that did not work. Last night I installed 2019a and unistalled 2018b and now I still have the same issue and also I am getting a "out" file to my workspace from my "simout" block that I cannot use. Any help or guidance would be appreciated.

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Arvind Sathyanarayanan 2019-7-19

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Timothy,

Guessing based on your desciprition, it seems like the time step might not be large enough. If you're using a fixed step solver use a time step thats about 10 times the frequency of your sine wave. If you're using a variable step solver then reduce the max step size.

If you attach your model I or other people in this forum might be able to give you more concrete answer.

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Arvind Sathyanarayanan 2019-7-23

Thanks for the screenshot.

You have the Single simulation output option enabled in the configuration parameters. Disabling this should give you just the timerseries or whatever format you select in the To workspace block. See the image below