The electrical connectors of ObjectStab models are modelled by the voltages and
currents in phasor representation:

I =   ia + j ib
V = 1+va + j vb

The constant one has been introduced in order to help the initial value solver.
Two connected Pins results in the following equations:

Pin1.va = Pin2.va
Pin1.vb = Pin2.vb
Pin1.ia + Pin2.ia = 0
Pin1.ib + Pin2.ib = 0

By definition, currents are considered positive when injected into a component.

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