8.15 Phase Lock Loop
The phase lock loop module generates the ux angle (θ) and stator frequency (ω
out
). The ux Q-
axis term is generated by the motor ux D-Q transformation (λ
qs
). The phase lock loop module
is evaluated at 1/5 of the inner current loop update rate.
Motor terminal voltage feedback is integrated to provide a true ux feedback in volt-sec units.
The PLL uses this to provide a ux vector phase reference for all internal motor control.
Advanced Operating Functions
8.15 Phase Lock Loop
NXGPro+ Control Manual
Operating Manual, A5E50491925A 255
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