Package Modelica.​Electrical.​Analog.​Sources
Time-dependent and controlled voltage and current sources

Information

This package contains time-dependent and controlled voltage and current sources. Most of the sources use the behavior modeled in the Modelica.Blocks.Sources package. All sources are ideal in the sense that no internal resistances are included.

Extends from Modelica.​Icons.​SourcesPackage (Icon for packages containing sources).

Package Contents

Model Modelica.​Electrical.​Analog.​Sources.​SignalVoltage
Generic voltage source using the input signal as source voltage

Information

The signal voltage source is a parameterless converter of real valued signals into a the source voltage. No further effects are modeled. The real valued signal has to be provided by components of the blocks library. It can be regarded as the "Opposite" of a voltage sensor.

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ConstantVoltage
Source for constant voltage

Information

The ConstantVoltage source is a simple source for an ideal constant voltage which is provided by a parameter. There is no internal resistance modeled. If it is used instead of a battery model it is not very realistic: This battery will never be unloaded.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​OnePort (Component with two electrical pins p and n and current i from p to n).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​StepVoltage
Step voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​RampVoltage
Ramp voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SineVoltage
Sine voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​CosineVoltage
Cosine voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ExpSineVoltage
Exponentially damped sine voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ExponentialsVoltage
Rising and falling exponential voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​PulseVoltage
Pulse voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SawToothVoltage
Saw tooth voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​TrapezoidVoltage
Trapezoidal voltage source

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​TableVoltage
Voltage source by linear interpolation in a table

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

This block generates a voltage source by linear interpolation in a table. The time points and voltage values are stored in a matrix table[i,j], where the first column table[:,1] contains the time points and the second column contains the voltage to be interpolated. The table interpolation has the following properties:

• The time points need to be monotonically increasing.
• Discontinuities are allowed, by providing the same time point twice in the table.
• Values outside of the table range, are computed by extrapolation through the last or first two points of the table.
• If the table has only one row, no interpolation is performed and the voltage value is just returned independently of the actual time instant, i.e., this is a constant voltage source.
• Via parameters startTime and offset the curve defined by the table can be shifted both in time and in the voltage.
• The table is implemented in a numerically sound way by generating time events at interval boundaries. This generates continuously differentiable values for the integrator.

Example:

   table = [0  0
            1  0
            1  1
            2  4
            3  9
            4 16]
If, e.g., time = 1.0, the voltage v =  0.0 (before event), 1.0 (after event)
    e.g., time = 1.5, the voltage v =  2.5,
    e.g., time = 2.0, the voltage v =  4.0,
    e.g., time = 5.0, the voltage v = 23.0 (i.e., extrapolation). 

Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​VoltageSource (Interface for voltage sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SignalCurrent
Generic current source using the input signal as source current

Information

The signal current source is a parameterless converter of real valued signals into a the source current. No further effects are modeled. The real valued signal has to be provided by components of the blocks library. It can be regarded as the "Opposite" of a current sensor.

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ConstantCurrent
Source for constant current

Information

The ConstantCurrent source is a simple source for an ideal constant current which is provided by a parameter. There is no internal resistance modeled. No further effects are modeled. Especially, the current flow will never end.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​OnePort (Component with two electrical pins p and n and current i from p to n).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​StepCurrent
Step current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​RampCurrent
Ramp current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SineCurrent
Sine current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​CosineCurrent
Cosine current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ExpSineCurrent
Exponentially damped sine current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​ExponentialsCurrent
Rising and falling exponential current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​PulseCurrent
Pulse current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SawToothCurrent
Saw tooth current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​TrapezoidCurrent
Trapezoidal current source

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​TableCurrent
Current source by linear interpolation in a table

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

This block generates a current source by linear interpolation in a table. The time points and current values are stored in a matrix table[i,j], where the first column table[:,1] contains the time points and the second column contains the current to be interpolated. The table interpolation has the following properties:

• The time points need to be monotonically increasing.
• Discontinuities are allowed, by providing the same time point twice in the table.
• Values outside of the table range, are computed by extrapolation through the last or first two points of the table.
• If the table has only one row, no interpolation is performed and the current value is just returned independently of the actual time instant, i.e., this is a constant current source.
• Via parameters startTime and offset the curve defined by the table can be shifted both in time and in the current.
• The table is implemented in a numerically sound way by generating time events at interval boundaries. This generates continuously differentiable values for the integrator.

Example:

   table = [0  0
            1  0
            1  1
            2  4
            3  9
            4 16]
If, e.g., time = 1.0, the current i =  0.0 (before event), 1.0 (after event)
    e.g., time = 1.5, the current i =  2.5,
    e.g., time = 2.0, the current i =  4.0,
    e.g., time = 5.0, the current i = 23.0 (i.e., extrapolation). 

Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Extends from Modelica.​Electrical.​Analog.​Interfaces.​CurrentSource (Interface for current sources).

Parameters

Connectors

Model Modelica.​Electrical.​Analog.​Sources.​SupplyVoltage
Supply voltage (positive and negative)

Information

This is a simple model of a constant supply voltage with positive and negative supply, the potential between positive and negative supply is accessible.

Parameters

Connectors