Multi-Terminal DC Converter Information

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This dialog is used to view and modify the parameters specific to multi-terminal DC network buses. The dialog is also used to enter values for new multi-terminal DC buses when inserting a Multi-Terminal DC Record.

To view the Multi-Terminal DC Bus Record dialog, right-click on a bus record in the DC Buses tab of the Multi-Terminal DC Record dialog and select Show Dialog from the resulting popup menu. The dialog has the following fields:

 

Converter Parameters

Number of Bridges

Number of bridges in series for the selected converter.

Converter Type

R for rectifier or I for inverter.

Commutating Impedance

Commutating impedance per bridge, in Ohms.

Firing Angle Limits

The maximum and minimum firing angle limits, in degrees.

 

Transformer Parameters

AC Base

The primary AC base voltage, in kV.

DC Base

The DC base voltage, in kV.

Transformer Ratio

Actual transformer ratio.

Tap Settings

Displays the actual tap setting, the tap step, and maximum and minimum tap values for the converter transformer.

 

Control Parameters

Setpoint

The setpoint control value at the converter. For the voltage-controlling converter, this field is set to 0. For the remaining converters, this field displays MW when in Power mode, or Amps when in Current mode.

Margin

Rectifier margin, entered in per-unit of the DC power or current. This field is currently only for support of other load flow formats, and is not used by Simulator.

DC Participation Factor

Converter participation factor. This field is currently only for support of other load flow formats, and is not used by Simulator.

Voltage

The DC Voltage magnitude at the DC side of the converter.

 

Solved Parameters

Firing Angle

The firing angle of the converter, as determined during the load flow solution.

DC Current

The calculated DC current at the converter DC terminal.

MW, MVAR

The real and reactive power delivered to (or absorbed from) the AC system by the converter.