SKM Power Tools (PTW) Error: Redundant Swing Bus Defined

[abajgain]

Hi All,
I get error: Redundant Swing Bus Defined whenever I try to run my power system model. Details of are as follows:

Utility (200 MVA) connected to TF001 Primary. TF001 Secondary (22 kV) connected to BUS1000 (22 kV).
5 Generators (Each 6 MVA - 11 kV) connected to BUS0001 (11 kV). BUS001 connected to TF002 Primary & TF002 Secondary (22 kV) connected to BUS1000 (22 kV)
Downstream BUS1000, loads are connected.

When I perform load flow/ SC study, i get fatal error for 4 out of 5 generators : Redundant Swing Bus Defined

If I remove 4 generators and make use of single generator, I get no error
If only utility is used without any generators, no error

Can some please help me out. I have no idea where I went wrong.

 

[TwoBlocked]

I think you need to put a bus after each genny and then tie those to one bus.

 

[synchro]

I have no experience with SKM tools, but it seems like you may be setting the generators in swing bus mode. It's likely that you'd would want the utility in swing bus mode which will establish its source voltage and angle. And then set the generators to PV mode (to set the active power and voltage magnitude). Then the utility will act as a swing bus and make up imbalances in the kW and kVAR.

 

[ron]

There are several helpdesk responses on the SKM website. Check them out including this one

SKM Software Help Desk - Initial Voltage for Utility or Swing Bus Generator for Load Flow Study - Knowledge base

SKM Software Help Desk Knowledge base - Initial Voltage for Utility or Swing Bus Generator for Load Flow Study - There is a general... :help desk software by Jitbit

support.skm.com

SKM Software Help Desk - Initial Voltage for Utility or Swing Bus Generator in Short Circuit Study - Knowledge base

SKM Software Help Desk Knowledge base - Initial Voltage for Utility or Swing Bus Generator in Short Circuit Study - There is a general... :help desk software by Jitbit

support.skm.com

 

[JoeStillman]

Go to the Generator component editor and put your cursor in the highlighted field:


Press F1 and you'll see this:

 

[abajgain]

Go to the Generator component editor and put your cursor in the highlighted field:
View attachment 2568169

Press F1 and you'll see this:

View attachment 2568171

Thanks. Got it workin