Low cost active power line conditioner

Details Low cost active power line conditioner Low cost active power line conditioner

1993-03-12

1994-09-27

Voeltz, Emanuel T.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 40, 363 98, 307105, H02M 112, G05F 170

Patent

active

053511816

ABSTRACT:
A novel active power line conditioner is disclosed. The apparatus includes a parallel inverter, with a dc-link, coupled to an output line. The parallel inverter is controlled by a parallel inverter controller which forces the parallel inverter to act as a variable capacitor or inductor. The parallel inverter controller identifies and feeds-forward a desired phase shift value between an active power line conditioner voltage output signal and an active power line conditioner voltage input signal. Utilization of the desired phase shift value results in voltage control of the dc-link of the parallel inverter. The parallel inverter controller also produces a tuning capacitance current reference signal which reduces voltage magnitude errors of the output voltage.

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