modelOverExcitationLimiterSummation
Over Excitation Limiter acting on the summation point of voltage regulator
Extends from TransiEnt.Basics.Icons.Controller (Icon for controller).
Information
1. Purpose of model
Overexcitation Limiter action on summation point of voltage regulator
2. Level of detail, physical effects considered, and physical insight
L2E only transfer functions with PT1-elements
3. Limits of validity
(only OEL)
4. Interfaces
real input (Vf- field voltage) and output (limiting voltage for voltage regulator)
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
use in excitation systems
8. Validation
(no validation or testing necessary)
9. References
[1] T. Van Cutsem, “Excitation systems and automatic voltage regulators&rdquo, lecture material “Power system dynamics, control and stability”, 2018
10. Version History
Created by Zahra Nadia Faili (zahra.faili@nithh.de), Aug 2019
Revised and added to the TransiEnt Library by Jan-Peter Heckel (jan.heckel@tuhh.de), Dec 2019
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Voltage | v_n | simCenter.v_n | |
| Modelica.Units.SI.Voltage | VfLimit | 1.1*v_n | |
| Real | L1 | -20 | lower bound of OEL timer |
| Real | L2 | 5 | upper bound of OEL timer |
| Real | L3 | 1 | upper limit of integrator |
| Real | K2 | -1 | reset constant of OEL |
| Real | K1 | 2 | |
| Real | K3 | 4 | feedback gain of OEL |
| Real | D | 2 | normal condition |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealOutput | Voel | ||
| Modelica.Blocks.Interfaces.RealInput | Vf |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter | ||
| Modelica.Blocks.Logical.Switch | switchingTime | ||
| Modelica.Blocks.Math.Feedback | Feedback | ||
| Modelica.Blocks.Sources.RealExpression | realExpression1 | ||
| Modelica.Blocks.Logical.GreaterEqualThreshold | greaterEqualThresholdDown | ||
| Modelica.Blocks.Sources.RealExpression | realExpression | ||
| Modelica.Blocks.Continuous.LimIntegrator | limIntegrator | ||
| Modelica.Blocks.Continuous.LimIntegrator | limIntegrator1 | ||
| Modelica.Blocks.Math.Gain | gain | ||
| TransiEnt.Basics.Blocks.UserDefinedFunction | OELBlock |