See Also
To access the Flows and Voltages Sensitivities dialog go to the Tools ribbon tab, and choose Sensitivities > Flows and Voltages Sensitivities from the Run Mode ribbon group. This is only available in Run Mode.
The grids that occupy all of the tabs on this dialog list each device of the particular type in the system, subject to the Area/Zone/Owner Filter settings. These grids are case information displays, and thus share properties and controls common to all other case information displays.
Self Sensitivity
The Self Sensitivity tab shows the effect of an injection of real or reactive power at a bus on its own voltage (assuming everything is absorbed at the island slack bus). It processes through each bus calculating its own self-sensitivity only.
Each row of the results gives the sensitivity of voltage at the respective bus to a power injection at the same bus. dV/dP gives the sensitivity of voltage to real power injection and dV/dQ gives the sensitivity of voltage to reactive power injection. To speed up the calculation, sensitivities are calculated only for the buses displayed in the Bus Sensitivities grid. The bus columns (to add see Display/Column Options) of interest after this calculation include:
- Sensitivity: Self dV/dP (per unit/MW) --> dV/dP gives the sensitivity of voltage magnitude to an injection of real power
- Sensitivity: Self dV/dQ (per unit/Mvar) --> dV/dQ gives the sensitivity of voltage magnitude to an injection of reactive power
- Sensitivity: Self dAngle/dP (radians/MW) --> dAngle/dP gives the sensitivity of voltage angle to an injection of real power
- Sensitivity: Self dAngle/dQ (radians/Mvar) --> dAngle/dQgives the sensitivity of voltage angle to an injection of reactive power
If the Integrated Topology Processing add-on is available, the Only show the primary bus for each superbus checkbox will be available. When checked, the buses that show up in the table will be limited to only those that are primary nodes. The determination of primary nodes is based on the base case topology. This provides an easy filter to eliminate redundant data.