30-bus grid simulation shows unexpected voltages and reactive power in Powerworld

[Serena_hm]

Troubleshooting a problem ...Urgent please !

hello everyone ,

I'm working on 30-Bus grid with Powerwolrd simulator ( version 15 ) and I'm facing some troubles with the results ...I got some different values from the one I was expecting , such as low voltages on some of the buses , different values for Reactive Power and different bus angles...the thing is I'm not quite aware of the reasons .. why , I double checked the input data but still there is no use !

Is there any way I can troubleshoot the problem with the software itself !?
and do you recommend any suggestions based on the nature of the grid and its components ( the grid consists of 2 generators , several loads and Synchronous condensers ) I've already attached the diagram below ...thanks in advance .

 

[anorlunda]

You must keep your mind open to all possibilities, including that your expectations may be wrong.

You can look at every voltage, every line flow one by one. Are all the constraints met? For example, specified P and V at a gen bus? You can every check line flow calcs manually. How about the swing bus residuals.

The most likely error, is an error in your input data. Perhaps a wrong bus number someplace.

If all the calculated results look reasonable, then examine your expectations. What are they based on? How can you be sure they are correct? What are your assumptions? How can you be sure they are fulfilled?

Note that this troubleshooting advice applies to any software result, not just power load flows.

 

[osilmag]

Low power or voltage problem seems like it would be coming from a generator or transformer...