 Damper Cage - MapleSim Help

Damper Cage

Damper Cage  Description The Damper Cage component models an asymmetrical damper cage in two axes. Equations ${R}_{{\mathrm{rd}}_{\mathrm{actual}}}={R}_{\mathrm{rd}}\left(1+\mathrm{\alpha }\left({T}_{\mathrm{hp}}-{T}_{\mathrm{ref}}\right)\right)$ ${R}_{{\mathrm{rq}}_{\mathrm{actual}}}={R}_{\mathrm{rq}}\left(1+\mathrm{\alpha }\left({T}_{\mathrm{hp}}-{T}_{\mathrm{ref}}\right)\right)$ ${v}_{{\mathrm{SP}}_{{r}_{1}}}={R}_{{\mathrm{rd}}_{\mathrm{actual}}}{i}_{{\mathrm{SP}}_{{r}_{1}}}+{L}_{r\sigma d}\stackrel{.}{{i}_{{\mathrm{SP}}_{{r}_{1}}}}$ ${v}_{{\mathrm{SP}}_{{r}_{2}}}={R}_{{\mathrm{rq}}_{\mathrm{actual}}}{i}_{{\mathrm{SP}}_{{r}_{2}}}+{L}_{r\sigma q}\stackrel{.}{{i}_{{\mathrm{SP}}_{{r}_{2}}}}$ $\frac{2}{3}\mathrm{LossPower}={\mathrm{Rr}}_{{d}_{\mathrm{actual}}}{i}_{{\mathrm{SP}}_{{r}_{1}}}^{2}+{R}_{{\mathrm{rq}}_{\mathrm{actual}}}{i}_{{\mathrm{SP}}_{{r}_{2}}}^{2}$ ${T}_{\mathrm{hp}}=\left\{\begin{array}{cc}{T}_{\mathrm{heatPort}}& \mathrm{Use Heat Port}\\ T& \mathrm{otherwise}\end{array}$ Variables

 Name Units Description Modelica ID $\mathrm{LossPower}$ $W$ Loss power leaving component via HeatPort LossPower ${T}_{\mathrm{hp}}$ $K$ Temperature of HeatPort T_heatPort ${R}_{{\mathrm{rd}}_{\mathrm{actual}}}$ $\mathrm{\Omega }$ Actual resistance resistance in d-axis Rrd_actual ${R}_{{\mathrm{rq}}_{\mathrm{actual}}}$ $\mathrm{\Omega }$ Actual resistance resistance in q-axis Rrq_actual Connections

 Name Description Modelica ID $i$ Currents out from damper i ${\mathrm{SP}}_{r}$ Rotor space phasor spacePhasor_r $\mathrm{lossPower}$ Damper losses lossPower $\mathrm{Heat Port}$ heatPort Parameters

 Name Default Units Description Modelica ID ${L}_{r\sigma d}$ $H$ Stray inductance in d-axis per phase translated to stator Lrsigmad ${L}_{r\sigma q}$ $H$ Stray inductance in q-axis per phase translated to stator Lrsigmaq ${R}_{\mathrm{rd}}$ $\mathrm{\Omega }$ Resistance in d-axis per phase translated to stator at ${T}_{\mathrm{ref}}$ Rrd ${R}_{\mathrm{rq}}$ $\mathrm{\Omega }$ Warm resistance in q-axis per phase translated to stator Rrq $\mathrm{\alpha }$ $0$ $\frac{1}{K}$ Temperature coefficient of both resistances in d- and q-axis at ${T}_{\mathrm{ref}}$ alpha Use Heat Port $\mathrm{false}$ True (checked) means heat port is enabled useHeatPort $T$ ${T}_{\mathrm{ref}}$ $K$ Fixed device temperature if Use Heat Port is false T ${T}_{\mathrm{ref}}$ $293.15$ $K$ Reference temperature of both resistances in d- and q-axis T_ref Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.