modelDamperCage
Squirrel Cage
Extends from Modelica.Electrical.Analog.Interfaces.ConditionalHeatPort (Partial model to include a conditional HeatPort in order to describe the power loss via a thermal network).
Information
Model of an asymmetrical damper cage in two axis.
The damper cage has an optional (conditional) HeatPort, which can be enabled or disabled by the Boolean parameter useHeatPort. Temperatures of both axis are the same, both losses are added. Material properties alpha can be set differently for both d- and q-axis, although reference temperature for both resistances is the same.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Inductance | Lrsigmad | Stray inductance in d-axis per phase translated to stator | |
| SI.Inductance | Lrsigmaq | Stray inductance in q-axis per phase translated to stator | |
| SI.Resistance | Rrd | Resistance in d-axis per phase translated to stator at T_ref | |
| SI.Resistance | Rrq | Resistance in q-axis per phase translated to stator at T_ref | |
| SI.Temperature | T_ref | 293.15 | Reference temperature of both resistances in d- and q-axis |
| SI.LinearTemperatureCoefficient | alpha | 0 | Temperature coefficient of both resistances in d- and q-axis at T_ref |
| Boolean | useHeatPort (from ConditionalHeatPort) | false | = true, if heatPort is enabled |
| SI.Temperature | T (from ConditionalHeatPort) | 293.15 | Fixed device temperature if useHeatPort = false |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | heatPort (from ConditionalHeatPort) | Conditional heat port | |
| Modelica.Blocks.Interfaces.RealOutput[2] | i | -spacePhasor_r.i_ | Currents out from damper |
| Modelica.Blocks.Interfaces.RealOutput | lossPower | LossPower | Damper losses |
| Machines.Interfaces.SpacePhasor | spacePhasor_r |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Power | LossPower (from ConditionalHeatPort) | Loss power leaving component via heatPort | |
| SI.Temperature | T_heatPort (from ConditionalHeatPort) | Temperature of heatPort | |
| SI.Resistance | Rrd_actual | Actual resistance = Rrd*(1 + alpha*(T_heatPort - T_ref)) | |
| SI.Resistance | Rrq_actual | Actual resistance = Rrq*(1 + alpha*(T_heatPort - T_ref)) |