Generation of highly accurate and highly dynamic direct currents from a rectifier group and an active filter which is connected in parallel with the load for smoothing purposes

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United States of America Patent

PATENT NO 8537576
APP PUB NO 20100264898A1
SERIAL NO

12808021

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Abstract

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A power supply for generating temporally specifiable, open- and closed-loop controlled current paths includes a first controllable rectifier group that includes at least one rectifier having a smoothing inductor at an output. An active filter is connected in parallel to a load, the active filter including a second rectifier group with at least one rectifier and a pulse bridge connected to an output thereof. A second-order low pass filter has a clock inductor, a capacitor, and an RC damping, the clock inductor being connected located at an output of the pulse bridge. A voltage of the at least one rectifier of the first controllable rectifier group and a voltage of the active filter in an open and closed loop is controlled, a first controlled system controlling a current of the at least one rectifier of the first controllable rectifier group of the power supply system in open and closed loop via a first controller by an output-side open- and closed-loop controlled variable, and a second controlled system of a second controller for a load current and a subordinate controller for a load voltage controlling the active filter in open and closed loop using a feedforward control variable.

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Patent Owner(s)

Patent OwnerAddress
GSI HELMHOLTZZENTRUM FUER SCHWERIONENFORSCHUNG GMBHPLANCKSTRASSE 1 DARMSTADT 64291

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ramakers, Heinz Ober-Ramstadt, DE 1 2
Welker, Horst Griesheim, DE 1 2

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