modelPiModelComplex
Extends from TransiEnt.Components.Electrical.Grid.Base.PartialTwoPortAdmittanceComplex (Base Class of two port models with admittance parameters for lines and transformers).
Information
1. Purpose of model
Advanced line model using two-port equation. Computes losses and voltage drop dependent of 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 with concentrated elements. Active- and reactive power (losses) are regarded. Electrical Pi-network.
3. Limits of validity
Quasi-stationary model, model of line with concentrated elements, limited by the wavelength of the 50 Hz oscillation
4. Interfaces
Two ComplexPowerPort for each terminal of the transmission line
Boolean input for switching
5. Nomenclature
U is uses for voltages
P is used for active powers
S is used for apparent powers
I is used for electric currents
Q is used for reactive powers
6. Governing Equations
Two-Port Equations
7. Remarks for Usage
Use these model in normal cases
Parameters for the type of line are divided in the three voltage levels
8. Validation
(no remarks)
9. References
[1] M. Schaefer, KIT, URL: https://www.zml.kit.edu/downloads/Elektrische_Energieuebertragung_Leseprobe_Kapitel_2.pdf, 2018
10. Version History
Model created by Jan-Peter Heckel (jan.heckel@tuhh.de) in March 2018
Model made more modular by Jan-Peter Heckel (jan.heckel@tuhh.de) in May 2019
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Resistance | R | r*l | |
| SI.Reactance | X | x*l | |
| SI.Capacitance | C | c*l | |
| Modelica.Units.SI.Susceptance | B | 2*Modelica.Constants.pi*simCenter.f_n*C | |
| Fundamental Definitions | |||
| Boolean | activateSwitch (from PartialTwoPortAdmittanceComplex) | false | |
| Integer | ChooseVoltageLevel | 1 | Choose Voltage Level |
| Real | p | 1 | Number of parallel lines |
| cable properties | |||
| TransiEnt.Basics.Units.SpecificResistance | r_custom | 0.06e-3 | Resistance load per unit length |
| TransiEnt.Basics.Units.SpecificReactance | x_custom | 0.301e-3 | Reactance load per unit length |
| TransiEnt.Basics.Units.SpecificCapacitance | c_custom | 0.0125e-9 | Capacitance load per unit length |
| SI.Current | i_r_custom | 1290 | Rated current |
| TransiEnt.Components.Electrical.Grid.Characteristics.LVCabletypes | LVCableType | TransiEnt.Components.Electrical.Grid.Characteristics.LVCabletypes.K1 | Type of low voltage cable |
| TransiEnt.Components.Electrical.Grid.Characteristics.MVCabletypes | MVCableType | TransiEnt.Components.Electrical.Grid.Characteristics.MVCabletypes.L1 | Type of Medium voltage cable |
| TransiEnt.Components.Electrical.Grid.Characteristics.HVCabletypes | HVCableType | TransiEnt.Components.Electrical.Grid.Characteristics.HVCabletypes.L1 | Type of high voltage cable |
| SI.Length | l | 1 | Cable Length |