This demo animates the motion of
the space vectorf under balanced sinusoidal conditions,
appearing as constant amplitude vectors rotating at the excitation frequencyω_{s}. The
magnitude can be adjusted by sliding point F
along the α axis. The components depend on the choice of reference frame. In the stationary
αβ frame, the components
are time varying representing two-phase sinusoidal signals at frequencyω_{s}.
In the rotating synchronous dq frame, the dq
components are constants whose values depend on the
orientation of the space vector with respect to the dq
axes. The time derivative df/dt
of the space vector in the synchronous frame can be represented by the velocity
vector v_{f}
of the terminus of the space vector f ; this vectoris perpendicular to
f and has an amplitude
of |v_{f}|_{
}= ω_{s }|f|.