Could you please explain what is the electrical and physical meaning that the active power of Swing Bus is get in negative (-ve) after running the power flow analysis. I understand that there are other generators capable of feeding the loads with the power. But what this -ve means in reality inside the machine?
As answered above, swing bus generation becomes negative if the generation from type 2 buses is greater than the total load plus losses of the network. The swing bus adjusts for the generation-demand balance in the network. This is the mathematical function of the swing/slack generation in terms of load flow calculation.
What's the physical meaning if the swing bus generation becomes negative? The dispatch of the generators is made in an unrealistic way. You have to remember that a swing generator is also a real machine and it has Pmax/Pmin and Qmax/Qmin limits.
The active power generation at the swing bus becomes negative if the total generation of type 2 generator buses is larger than the total load + losses.
You have to decrease the generation at some other generators.
This is really basics for load flow calculation... I recommend to study the theory of load flow calculation prior to use PSSE.
Asked: 2021-06-10 18:33:51 -0500
Seen: 1,128 times
Last updated: Jun 17 '21
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