The SignalPower source component applies a power phasor of variable rms and phase into the phasor-based electrical circuit. Hence, these values are specified by input signals.
Attention!!!
To ensure that the phasor domain-based model works in a
quasi-stationary mode, both rms value and phase angle may alter
only very slowly in comparison with both the nominal frequency
f=ω/(2π) and the dominant time constant of the phasor
domain-based model.