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DISTORTED VOLTAGE WAVEFORM
Posted 25.07.2010, 23:28 GMT-4 1 Reply
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Hi there,
I am a new user to COMSOL. I am analyzing an insulation system in AC-DC>Quasi-Static Electric> In plane electric currents. Actually my objective is to apply a distorted voltage waveform on this insulation system. I know how to change the frequency and amplitude of the applied voltage. But since my waveform has harmonic contents so it has multiple frequencies. So how can I apply a distorted voltage in COMSOL.
Your help is appreciated.
thanks,
Omar
I am a new user to COMSOL. I am analyzing an insulation system in AC-DC>Quasi-Static Electric> In plane electric currents. Actually my objective is to apply a distorted voltage waveform on this insulation system. I know how to change the frequency and amplitude of the applied voltage. But since my waveform has harmonic contents so it has multiple frequencies. So how can I apply a distorted voltage in COMSOL.
Your help is appreciated.
thanks,
Omar
1 Reply Last Post 26.07.2010, 02:34 GMT-4
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Posted:
1 decade ago
Hi
Yes this is always a sensitive issue, if you have an input spectra with a certain PSD (Power Spectral Densty) distribution, then how to ?
Normlly then, one considers the model to be linear and one solve it with the modal solver by applying a frequence dependent amplitude as input, derived from the excitation PSD. One ends up with a modal response at the output position that must be integrated accordingly, or transformed to another "output" PSD.
Now if the couplings are non-linear then the real fun starts, but that becomes too model dependent to say more about here
--
Good luck
Ivar
Yes this is always a sensitive issue, if you have an input spectra with a certain PSD (Power Spectral Densty) distribution, then how to ?
Normlly then, one considers the model to be linear and one solve it with the modal solver by applying a frequence dependent amplitude as input, derived from the excitation PSD. One ends up with a modal response at the output position that must be integrated accordingly, or transformed to another "output" PSD.
Now if the couplings are non-linear then the real fun starts, but that becomes too model dependent to say more about here
--
Good luck
Ivar