System for correcting power factor and harmonics present on...

Details System for correcting power factor and harmonics present on... System for correcting power factor and harmonics present on...

2006-07-18

2006-07-18

Riley, Shawn (Department: 2838)

Electrical transmission or interconnection systems

With harmonic filter or neutralizer

Reexamination Certificate

active

07078831

ABSTRACT:
An electric control system for a pulse width modulated inverter connected in parallel to an electricity distribution network for correcting or minimizing a voltage total harmonic distortion of the distribution network includes a sampler of the voltage of the electricity distribution network for obtaining samplings of the distribution network. The sampler preferably is an analog-to-digital converter. The system also includes a phase locked loop circuit that supplies a phase value of a period under examination, and a storage system for coupling the various samplings with the phase value obtained by the phase locked loop circuit.

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