modelLine_RL

Transmission line model with consideration of resistance (R) and inductive reactance (L) per unit length

Extends from TransiEnt.Basics.Icons.Model (Icon for models).

Information

1. Purpose of model

Simple model of a cable with consideration of resistance and inductive reactance per unit length. Computes losses and voltage drop depend on typical cable types and specified length.

2. Level of detail, physical effects considered, and physical insight

L3E (defined in the CodingConventions) - Quasi-Stationary model of transmission line as a concentrated element. Active- and (inductive) reactive power (losses) are regarded. Cable capacitance is neglected. When checkbox simpleModel is activated: calculation based on nominal grid voltage instead of actual voltage at power ports.

3. Limits of validity

Limited by length due to neglecting of cable capacitance, esp. at medium and high voltage. When checkbox simpleModel is activated: limited by voltage drops of about 20 % of nominal grid voltage.

4. Interfaces

Two ApparentPowerPort for each terminal.

5. Nomenclature

(no elements)

6. Governing Equations

(no equations)

7. Remarks for Usage

(no remarks)

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

Model created by Saba Al-Sader during the project IntegraNet in 2017.

Model modified by Julian Urbansky, Fraunhofer UMSICHT, in 2021.

Parameters

TypeNameDefaultDescription
TransiEnt.Components.Electrical.Grid.Characteristics.LVCabletypesCableTypeTransiEnt.Components.Electrical.Grid.Characteristics.LVCabletypes.K4type of cable
SI.Lengthl100Length of the cable
Realv_n400Nominal grid voltage
BooleansimpleModelfalseIgnore phase shift angle of connected loads

Connectors

TypeNameDefaultDescription
TransiEnt.Basics.Interfaces.Electrical.ApparentPowerPortepp_p
TransiEnt.Basics.Interfaces.Electrical.ApparentPowerPortepp_n

Components

TypeNameDefaultDescription
TransiEnt.SimCentersimCenter
SI.ApparentPowerS1sqrt(epp_p.P^2 + epp_p.Q^2)
SI.ApparentPowerS2sqrt(epp_n.P^2 + epp_n.Q^2)
SI.ActivePowerP_lossepp_n.P + epp_p.P
SI.ReactivePowerQ_lossepp_n.Q + epp_p.Q
SI.Anglephi_v