Software Patches

January 25, 2012

Bug Fixes

  • Contingency Analysis: When using the linear calculation method or full dc analysis, flows on interfaces containing branches with weighting factors other than 1 were not being calculated correctly. This has been fixed.
  • General: When equivalencing a case and choosing to convert shunts to loads, shunts could still result. This would occur when one of a phase shifter's terminals was in the study system and the other was in the external system. The bus not being equivalenced would have a shunt value and an equivalent load created. The sum of these was correct, but the allocation between the two was not. This has been fixed.
  • Power Flow Solution: When loading in a case, it was possible that the Mvar output of a generator was not set exactly to one of the limits when the unit was marked as being at a limit. This would prevent the unit from ever moving even if it had range to move. This has been fixed.
  • User Interface Dialogs: Increased the number of decimal places shown from 1 to 3 for the reactive capability curve points on the generator dialog.