.Modelica.Electrical.Machines.BasicMachines.DCMachines.DC_ElectricalExcited

Information

Model of a DC Machine with electrical shunt or separate excitation.
Armature resistance and inductance are modeled directly after the armature pins, then using a AirGapDC model.
The machine models take the following loss effects into account:

No saturation is modelled.
Shunt or separate excitation is defined by the user's external circuit.
Default values for machine's parameters (a realistic example) are:

stator's moment of inertia 0.29 kg.m2
rotor's moment of inertia 0.15 kg.m2
nominal armature voltage 100 V
nominal armature current 100 A
nominal torque 63.66 Nm
nominal speed 1425 rpm
nominal mechanical output 9.5 kW
efficiency 95.0 % only armature
efficiency 94.06 % including excitation
armature resistance 0.05 Ohm at reference temperature
reference temperature TaRef 20 °C
temperature coefficient alpha20a 0 1/K
armature inductance 0.0015 H
nominal excitation voltage 100 V
nominal excitation current 1 A
excitation resistance 100 Ohm at reference temperature
reference temperature TeRef 20 °C
temperature coefficient alpha20e 0 1/K
excitation inductance 1 H
stray part of excitation inductance 0
armature nominal temperature TaNominal 20 °C
armature operational temperature TaOperational 20 °C
(shunt) excitation operational temperature TeOperational 20 °C
Armature resistance resp. inductance include resistance resp. inductance of commutating pole winding and compensation winding, if present.
Armature current does not cover excitation current of a shunt excitation; in this case total current drawn from the grid = armature current + excitation current.
Generated at 2020-06-05T07:38:22Z by OpenModelica 1.16.0~dev-420-gc007a39