This approximation of a three-phase synchronous machine using
phasor domain for the electrical subsystem is based on the
behaviour of the steady-state equivalent circuit of such a machine.
This behaviour is defined by appropriate equations. The machine is
an extension of the partial Interface package model
PartialBasicElectricMachine3phPwr_wBalance of an electric
three-phase machine including both the current balances and the
power calculation.
The model has two electrical connectors of type ComplexPlug (which
correspond to six connectors of type ComplexPin) and one mechanical
rotational flange. The stator is assumed to be fixed in the
housing.
The electrical submodel has three phases if the default value of
the 'number of phases'-parameter m is used. In order to
model a system with different number of phases, the 'number of
phases'-parameter has to be changed in all appearing multi-phase
components and connectors.
Each phase consists of a constant inductance (stator's
self-inductance) and an electromagnetic force (emf) realising the
effect of the rotor current on the stator via the mutual
inductance. All inductances are assumed to be ideal (electrically
linear, no saturation).
The mechanical submodel contains a shaft which is fixed to the
rotor.
Using this model, one can carry out steady-state or
quasi-stationary investigations of the electrical subsystem. The
mechanical subsystem may show transient behaviour which must be
sufficiently slow.
Attention!!!
To ensure that the phasor domain-based model works in a
quasi-stationary mode, the torque angle δ (also called
rotor displacement angle) may alter only very slowly in comparison
with both the nominal frequency f=ω/(2π) and the dominant
time constant of the electrical subsystem.