Question about bus angle in TDS

[jinningwang]

Hi Hantao,

I have a question about bus angle in the TDS simulation.
I see that the bus angle used now is the relative angle. If I need absolute bus angles, will it be safe to use a = w * t as the absolute angle of the slack bus?

Regards,
Jinning

[cuihantao]

There isn’t any “absolute bus angle”. All bus angles at the steady state or during TDS are relative to the Slack angle, an implicit reference. In the equation of a =wt, you confused phasor with waveform. The implicit reference is just a constant value, which is the a0 of Slack being typically zero. After a disturbance, the reference is not equal to the bus angle where the Slack is connected. Regards, Hantao Cui

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On Jun 7, 2022, 11:15 AM -0500, Jinning Wang ***@***.***>, wrote: Hi Hantao, I have a question about bus angle in the TDS simulation. I see that the bus angle used now is the relative angle. If I need absolute bus angles, will it be safe to use a = w * t as the absolute angle of the slack bus? Regards, Jinning — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[jinningwang]

Many thanks for your reply! I misunderstood the concept of the bus angle.