Method and apparatus for harmonic distortion correction

Details Method and apparatus for harmonic distortion correction Method and apparatus for harmonic distortion correction

1992-11-16

1994-12-27

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 39, 363 95, H02M 112

Patent

active

053770927

ABSTRACT:
There is described a method and apparatus for substantially cancelling harmonic distortion from the output voltage signal of a power supply. The system samples the output of the power supply and detects the harmonic distortion within the output signal. After the harmonic distortion is detected, the amplitude of the real and imaginary components of the harmonic distortion are determined. The amplitude components are applied to a PI compensator to generate the harmonic distortion correction signal necessary to substantially cancel harmonic distortion from the output voltage signal. The harmonic distortion correction signal is then applied to the power supply.

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