Incorrect initialization of synchronous machine when simulating with saturation in "continuous" simulation mode

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Himanshu on 3 Sep 2014
Answered: Joel Van Sickel on 18 Aug 2021
I am trying to simulate saturation in a synchronous machine in SimPowerSystems. I check the "simulate saturation" box and initialize the machine using "load flow" or "machine initialization". However, when I start the simulation at steady state in "continuous" mode , the machine speed does not stay at 1 p.u. and attains a new steady state speed which is different than 1.
This problem does not arise when I do not simulate saturation. I haven't been able to find a reason for this apparent error but have a hunch that initialization may not be taking the effect of saturation into account. I will really appreciate if anybody could shed some light on this issue.
Thanks Himanshu

Answers (1)

Joel Van Sickel
Joel Van Sickel on 18 Aug 2021
I believe this was a bug that has been addressed, if anyone experiences is again (when using an up to date version of matlab) please comment here and contact me.

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