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Grid ​

This section defines standard grid-related parameters and if mitigation strategies should be used to make grids consistent. Grid project settings

Recompute Min/Max voltages ​

Click on to recompute the minimum and maximum voltages for all grids. This will override the min/max voltage calculation from the Data Integration settings until the next scheduled update.

Zero-sequence impedance ​

Defines a factor that relates the zero-sequence impedance of all cables and lines to the positive-sequence impedance.

Details

The zero sequence impedance represents the soil's eletrical impedance for the short circuit types 'Single-phase to ground' and 'Two-phase to ground'. The zero sequence impedance of lines and connections that don't have an explicit zero sequence impedance defined are calculated using this factor. For a conservative analysis, use factor 1.0. The zero-sequence impedance of the overlying grid is neglected (R(0)Qt=0Ω)

Line default temperature ​

If the temperature attribute of a cable or line is not set, we assume that the impedance of the cable or line relates to this temperature. This is relevant if you enable temperature corrections for calculations such as power flow, short circuit, D-A-CH-CZ, etc.

By default, a line temperature of 20°C is assumed.

Mitigation Strategies ​

These settings define, if Adaptricity should apply default parameters to certain grid elements in case they are missing in the original grid upon import. This might help to fix inconsistencies in the grid model.

WARNING

Default parameters might make the grid model less accurate.

Short Circuit ​

Defines if default Short Circuit parameters should be used in case they are missing.

Bus ​

Defines, if default voltage, GIS and StationID parameters should be applied in case they are missing.

Voltage ​

  • Do nothing: no mitigation strategy is applied
  • Set to 400 V: assigns a base voltage of 400 V to buses where the attribute is missing.
  • Use neighbor voltage: If a bus is missing the voltage attribute, the base voltage is inherited from its neighbors.

GIS ​

  • Do nothing: no mitigation strategy is applied
  • Use GIS from neighbor bus: If a bus is missing the GIS coordinate, it inherits it from the neighboring buses.

Station ID ​

  • Do nothing: no mitigation strategy is applied
  • Use Station ID from neighbor: If a bus is missing the Station ID reference, it inherits it from the neighboring buses.

Line ​

Defines how missing line parameters should be handled.

Length ​

  • Do nothing: no mitigation strategy is applied
  • Calculate from GIS: Calculates the line length from the coordinates of its support points, in case the length attribute is missing.

Network Feeder ​

Defines how missing network feeder parametes should be handled.

Operational Voltage ​

  • Do nothing: no mitigation strategy is applied
  • Set to 1pu: sets the operational voltage of the network feeder to 1pu in case it is missing.

Branches (Line, Connection, Transformer) ​

Defines how missing GIS coordinates or overlapping branches should be handled.

Overlapped GIS ​

  • Do nothing: no mitigation strategy is applied
  • Shift overlapping branches: Shifts branches that overlap each other one to one due to having the same support points. The shift results in new GIS coordinates for one of the branches.

GIS ​

  • Do nothing: no mitigation strategy is applied
  • Use GIS from buses: In case the GIS coordinates of the branch are missing, inherig the GIS coordinates from the start and end bus. This results in a straight line.