Voltage supply quality improvement method e.g. for automated processes

The invention relates to a method and a device for improving the quality of voltage of a secondary supply unit (16) by means of a compensation device (2) with a pulsed converter (4). Said pulsed converter is serial-linked into a transmission line (12) by means of a coupling transformer (10). Accordi...

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Bibliographic Details
Main Authors WEINHOLD, MICHAEL.., 91056 ERLANGEN, DE, ZUROWSKI, RAINER., 91301 FORCHHEIM, DE, VOSS, LEON, 91054 ERLANGEN, DE
Format Patent
LanguageEnglish
German
Published 22.10.1998
Edition6
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONTROLLING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:The invention relates to a method and a device for improving the quality of voltage of a secondary supply unit (16) by means of a compensation device (2) with a pulsed converter (4). Said pulsed converter is serial-linked into a transmission line (12) by means of a coupling transformer (10). According to the invention, positive- and negative-sequence deviations (uD,1+/-) are determined and are used to produce a basic transmission ratio space vector (üb). This space vector (b) is then used to generate control signals (S nu ) for the pulsed converter (4), using the intermediate circuit voltage (Vdc) of said pulsed converter (4), so that a compensator voltage (uK) can be serial-linked into the transmission line (12). The invention hereby provides a means of generating a supply voltage (uN) of an ideal supply system (14) from a distorted supply voltage (uN) for a secondary supply unit (16).
Bibliography:Application Number: DE19971037590