Components for quasi static machine models
Extends from Modelica.Icons.Package (Icon for standard packages).
Name | Description |
---|---|
SymmetricMultiPhaseWinding | Symmetric winding model coupling electrical and magnetic domain |
QuasiStaticAnalogWinding | Quasi static single phase winding neglecting induced voltage |
RotorSaliencyAirGap | Air gap model with rotor saliency |
SymmetricMultiPhaseCageWinding | Symmetrical rotor cage |
SaliencyCageWinding | Rotor cage with saliency in d- and q-axis |
PermanentMagnet | Permanent magnet model without intrinsic reluctance, represented by magnetic potential difference |
Symmetric winding model coupling electrical and magnetic domain
The symmetrical multi phase winding consists of a symmetrical winding resistor, a stray reluctance, a symmetrical multi phase electromagnetic coupling and a core loss model including heat port.
QuasiStionaryAnalogWinding, Magnetic.FundamentalWave.BasicMachines.Components.SinglePhaseWinding, Magnetic.FundamentalWave.BasicMachines.Components.SymmetricMultiPhaseWinding
Name | Description |
---|---|
m | Number of phases |
useHeatPort | Enable / disable (=fixed temperatures) thermal port |
RRef | Winding resistance per phase at TRef [Ohm] |
TRef | Reference temperature of winding [K] |
alpha20 | Temperature coefficient of winding at 20 degC [1/K] |
TOperational | Operational temperature of winding [K] |
Lsigma | Winding stray inductance per phase [H] |
effectiveTurns | Effective number of turns per phase |
GcRef | Electrical reference core loss reluctance [S] |
Name | Description |
---|---|
plug_p | Positive plug |
plug_n | Negative plug |
port_n | Negative complex magnetic port |
port_p | Positive complex magnetic port |
heatPortWinding[m] | Heat ports of winding resistors |
heatPortCore | Heat ports of winding resistor |
Quasi static single phase winding neglecting induced voltage
The single phase winding consists of a resistor, and a single phase electromagnetic coupling.
SymmetricMultiPhaseWinding, Magnetic.FundamentalWave.BasicMachines.Components.SinglePhaseWinding, Magnetic.FundamentalWave.BasicMachines.Components.SymmetricMultiPhaseWinding
Name | Description |
---|---|
useHeatPort | Enable / disable (=fixed temperatures) thermal port |
RRef | Winding resistance per phase at TRef [Ohm] |
TRef | Reference temperature of winding [K] |
alpha20 | Temperature coefficient of winding at 20 degC [1/K] |
TOperational | Operational temperature of winding [K] |
effectiveTurns | Effective number of turns per phase |
Name | Description |
---|---|
pin_p | Positive pin |
pin_n | Negative pin |
port_n | Negative complex magnetic port |
port_p | Positive complex magnetic port |
heatPortWinding | Heat ports of winding resistor |
Air gap model with rotor saliency
This salient air gap model can be used for machines with uniform airgaps and for machines with rotor saliencies. The air gap model is not symmetrical towards stator and rotor since it is assumed the saliency always refers to the rotor. The saliency of the air gap is represented by a main field inductance in the d- and q-axis.
For the mechanical interaction of the air gap model with the stator and the rotor it is equipped with to rotational connectors. The torques acting on both connectors have the same absolute values but different signs. The stator and the rotor reference angles, and are related by where is the electrical angle between stator and rotor.
The air gap model has two magnetic stator and two magnetic rotor ports. The magnetic potential difference and the magnetic flux of the stator and rotor are equal complex quantities, respectively, but the reference angles are different; see Concept. The d and q axis components with respect to the rotor fixed reference frame (superscript r) are determined from the stator (superscript s) and rotor (superscript r) reference quantities, by
.
The d and q axis magnetic potential difference components and flux components are related with the flux by:
Magnetic.FundamentalWave.BasicMachines.Components.RotorSaliencyAirGap
Name | Description |
---|---|
p | Number of pole pairs |
L0 | Salient inductance of a single unchorded coil w.r.t. the fundamental wave |
Name | Description |
---|---|
port_sp | Positive complex magnetic stator port |
port_sn | Negative complex magnetic stator port |
port_rp | Positive complex magnetic rotor port |
port_rn | Negative complex magnetic rotor port |
flange_a | Flange of the rotor |
support | Support at which the reaction torque is acting |
Symmetrical rotor cage
The symmetric rotor cage model of this library does not consist of rotor bars and end rings. Instead the symmetric cage is modeled by an equivalent symmetrical winding. The rotor cage model consists of phases. If the cage is modeled by equivalent stator winding parameters, the number of effective turns, , has to be chosen equivalent to the effective number of stator turns.
SaliencyCageWinding, Magnetic.FundamentalWave.BasicMachines.Components.SymmetricMultiPhaseCageWinding Magnetic.FundamentalWave.BasicMachines.Components.RotorSaliencyAirGap
Extends from Modelica.Magnetic.QuasiStatic.FundamentalWave.Interfaces.PartialTwoPortExtended (Partial two port for graphical programming with additional variables).
Name | Description |
---|---|
m | Number of phases |
useHeatPort | Enable / disable (=fixed temperatures) thermal port |
RRef | Winding resistance per phase at TRef [Ohm] |
TRef | Reference temperature of winding [K] |
alpha20 | Temperature coefficient of winding at 20 degC [1/K] |
TOperational | Operational temperature of winding [K] |
Lsigma | Cage stray inductance [H] |
effectiveTurns | Effective number of turns |
Name | Description |
---|---|
port_p | Positive quasi static magnetic port |
port_n | Negative quasi static magnetic port |
heatPortWinding | Heat ports of winding resistor |
Rotor cage with saliency in d- and q-axis
The salient cage model is a two axis model with two phases. The electromagnetic coupling therefore is also two phase coupling model. The angles of the two orientations are 0 and . This way an asymmetrical rotor cage with different resistances and stray inductances in d- and q-axis can be modeled.
SymmetricMultiPhaseWinding, Magnetic.FundamentalWave.BasicMachines.Components.SymmetricMultiPhaseCageWinding Magnetic.FundamentalWave.BasicMachines.Components.RotorSaliencyAirGap
Extends from Modelica.Magnetic.QuasiStatic.FundamentalWave.Interfaces.PartialTwoPortExtended (Partial two port for graphical programming with additional variables).
Name | Description |
---|---|
useHeatPort | Enable / disable (=fixed temperatures) thermal port |
RRef | Salient cage resistance |
TRef | Reference temperature of winding [K] |
alpha20 | Temperature coefficient of winding at 20 degC [1/K] |
TOperational | Operational temperature of winding [K] |
Lsigma | Salient cage stray inductance |
effectiveTurns | Effective number of turns |
Name | Description |
---|---|
port_p | Positive quasi static magnetic port |
port_n | Negative quasi static magnetic port |
i[2] | Cage currents |
lossPower | Damper losses [W] |
heatPortWinding | Heat ports of winding resistor |
Permanent magnet model without intrinsic reluctance, represented by magnetic potential difference
Permanent magnet model with magnetic, mechanical and thermal connector including losses. The PM model is source of constant magnetic potential difference. The PM loss is calculated by PermanentMagnetLosses.
Extends from FundamentalWave.Losses.PermanentMagnetLosses (Model of permanent magnet losses dependent on current and speed), Modelica.Magnetic.QuasiStatic.FundamentalWave.Interfaces.PartialTwoPort (Partial two port for graphical programming).
Name | Description |
---|---|
m | Number of phases |
permanentMagnetLossParameters | Permanent magnet loss parameters |
useHeatPort | =true, if heatPort is enabled |
V_m | Complex magnetic potential difference w.r.t. the rotor fixed reference frame |
Name | Description |
---|---|
flange | Shaft end |
support | Housing and support |
heatPort | Optional port to which dissipated losses are transported in form of heat |
port_p | Positive quasi static magnetic port |
port_n | Negative quasi static magnetic port |