VSCF system with reduced DC link ripple

Details VSCF system with reduced DC link ripple VSCF system with reduced DC link ripple

1991-11-27

1993-06-08

Voeltz, Emanuel T.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 40, 363 45, 307105, H02M 114

Patent

active

052185206

ABSTRACT:
A circuit in a power system for suppressing an AC ripple superimposed on a bus signal on a bus includes a first circuit for producing first and second signals having a frequency substantially equal to the AC ripple frequency wherein the second signal is a phase quadrature of the first signal, a second circuit for combining these signals with a signal representing the bus signal having the AC ripple superimposed thereon so as to derive a control signal having substantially the same frequency and phase as the AC ripple, and a third circuit responsive to this control signal so as to substantially suppress the AC ripple on the bus.

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