RCData
CellData
ExampleData
StackData
Parameter records for transient battery models
Parameter records for transient battery models
The user can easily build up a collection of different battery types by creating individual parameter records extending from the base record CellData.
Do not forget to add the annotation(defaultComponentPrefixes="parameter"); in each individual parameter record.
Record RCData is used in record CellData.
Extends from Modelica.Electrical.Batteries.Icons.TransientRecordsPackage (Icon for package containing records with transient data).
| Name | Description |
|---|---|
| RCData
|
Parameters of RC-elements |
| CellData
|
Parameters of a transient battery cell |
| ExampleData
|
Example parameters of a transient battery cell |
| StackData
|
Parameters for transient stacks including degradation |
Modelica.Electrical.Batteries.ParameterRecords.TransientData.RCDataParameters of RC-elements
Parameters for RC-elements of battery models
Capacitance C can be calculated from time constant T by C = T/R.
Extends from Modelica.Electrical.Batteries.Icons.TransientCellRecord (Indicates transient cell data).
| Name | Description |
|---|---|
| R | Resistance of RC-element [Ohm] |
| T_ref | Reference temperature [K] |
| alpha | Temperature coefficient of resistance at T_ref [1/K] |
| C | Capacitance of RC-element (=T/R) [F] |
Modelica.Electrical.Batteries.ParameterRecords.TransientData.CellDataParameters of a transient battery cell
Collects parameters of battery cells:
rcData for battery models comprising RC-elements
If useLinearSOCDependency=true, the OCV versus SOC table is built up internally from OCVmax, OCVmin, SOCmax, SOCmin.
Otherwise, the OCV versus SOC table has to be specified: 1st column = SOC values in ascending order, 2nd column = corresponding OCV values with respect to OCVmax.
The size of the array rcData has to be defined as parameter nRC.
The sum of the resistances rcData.R must not exceed the total inner resistance Ri.
Extends from Modelica.Electrical.Batteries.ParameterRecords.CellData (Parameters of a battery cell), Modelica.Electrical.Batteries.Icons.TransientCellRecord (Indicates transient cell data).
| Name | Description |
|---|---|
| Qnom | Nominal (maximum) charge [C] |
| Ri | Total inner resistance (= OCVmax/Isc) [Ohm] |
| T_ref | Reference temperature [K] |
| alpha | Temperature coefficient of resistance at T_ref [1/K] |
| Idis | Self-discharge current at SOC = SOCmax [A] |
| R0 | Inner resistance without parallel C [Ohm] |
| OCV versus SOC | |
| useLinearSOCDependency | Use a linear SOC dependent OCV, otherwise table based |
| OCVmax | OCV at SOC = SOCmax [V] |
| OCVmin | OCV at SOC = SOCmin [V] |
| SOCmax | Maximum state of charge |
| SOCmin | Minimum state of charge |
| OCV_SOC[:, 2] | OCV/OCVmax versus SOC table |
| smoothness | Smoothness of table interpolation |
| RC-elements | |
| nRC | Number of RC-elements |
| rcData[nRC] | Parameters of RC-elements |
Modelica.Electrical.Batteries.ParameterRecords.TransientData.ExampleDataExample parameters of a transient battery cell
This is an example for an OCV versus SOC characteristic
Extends from Modelica.Electrical.Batteries.ParameterRecords.TransientData.CellData (Parameters of a transient battery cell).
| Name | Description |
|---|---|
| Qnom | Nominal (maximum) charge [C] |
| Ri | Total inner resistance (= OCVmax/Isc) [Ohm] |
| T_ref | Reference temperature [K] |
| alpha | Temperature coefficient of resistance at T_ref [1/K] |
| Idis | Self-discharge current at SOC = SOCmax [A] |
| R0 | Inner resistance without parallel C [Ohm] |
| OCV versus SOC | |
| useLinearSOCDependency | Use a linear SOC dependent OCV, otherwise table based |
| OCVmax | OCV at SOC = SOCmax [V] |
| OCVmin | OCV at SOC = SOCmin [V] |
| SOCmax | Maximum state of charge |
| SOCmin | Minimum state of charge |
| OCV_SOC[:, 2] | OCV/OCVmax versus SOC table |
| smoothness | Smoothness of table interpolation |
| RC-elements | |
| nRC | Number of RC-elements |
| rcData[nRC] | Parameters of RC-elements |
Modelica.Electrical.Batteries.ParameterRecords.TransientData.StackDataParameters for transient stacks including degradation
Extends from Modelica.Electrical.Batteries.BaseClasses.BaseStackData (Parameters for stacks including degradation), Modelica.Electrical.Batteries.Icons.TransientStackRecord (Indicates transient stack data).
| Name | Description |
|---|---|
| Ns | Number of series connected cells |
| Np | Number of parallel connected cells |
| kDegraded[:, 2] | Indices of degraded cells [series index, parallel index] |