modelLumpedGridDynamicModel

Electric grid dynamic model considering self regulating effect, primary balancing provision and time constant of rotating masses

Extends from TransiEnt.Basics.Icons.ElectricSubModel (Icon for electric sub models).

Information

1. Purpose of model

The frequency behaviour of the electric grid is modeled when a power imbalance (delta_P_Z) is introduced. Considered effects are rotating masses of generators (time constant), self regulating effects and primary balancing control. The purpose is to invert this model such that a measured frequency is the input and the underlying power imbalances can be simulated.

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

(no remarks)

3. Limits of validity

(no remarks)

4. Interfaces

(no remarks)

5. Nomenclature

(no remarks)

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

Model created by Pascal Dubucq (dubucq@tuhh.de) on 01.10.2014

Parameters

Type	Name	Default
Real	Delta_P_pr_dot_max	0.02/30
Real	Delta_P_pr_max	0.2
Real	delta_P_pr	0.2
Real	T_AN	10
Real	f_0_star	50
Real	P_0	1
Real	k_pf	1.5

Connectors

Type	Name	Default	Description
TransiEnt.Basics.Interfaces.Electrical.ElectricPowerIn	delta_P_Z		Input for power difference
TransiEnt.Basics.Interfaces.General.FrequencyOut	f		Output for frequency

Components

Type	Name	Default	Description
Modelica.Blocks.Math.Gain	Delta_P_V_is
Modelica.Blocks.Math.MultiSum	multiSum
Modelica.Blocks.Math.Feedback	feedback
Modelica.Blocks.Nonlinear.Limiter	Delta_P_pr_is
TransiEnt.Basics.Blocks.VariableSlewRateLimiter	slewRateLimiter
Modelica.Blocks.Continuous.Integrator	f_star
Modelica.Blocks.Sources.Constant	f_0_Const
Modelica.Blocks.Math.Gain	Dimf
Modelica.Blocks.Math.MultiSum	P_V
Modelica.Blocks.Math.Gain	delta_pr
Modelica.Blocks.Math.MultiSum	P_T
Modelica.Blocks.Sources.Constant	P_0_Const
Modelica.Blocks.Math.Feedback	feedback1
Modelica.Blocks.Sources.Constant	f_02