Method and apparatus for generating and injecting reactive power into an electrical AC power grid system using an inverter

In the case of a method for feeding reactive power into an AC grid system, in the case of which method at least one line (10) of the grid system has a compensation voltage (Ucomp) produced for it, which compensation voltage (Ucomp) is phase-shifted with respect to the current in the line (10) and is...

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Bibliographic Details
Main Author STEMMLER; HERBERT
Format Patent
LanguageEnglish
Published 10.10.2000
Edition7
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:In the case of a method for feeding reactive power into an AC grid system, in the case of which method at least one line (10) of the grid system has a compensation voltage (Ucomp) produced for it, which compensation voltage (Ucomp) is phase-shifted with respect to the current in the line (10) and is injected into the line (10), simplified compensation is achieved in that the compensation voltage (Ucomp) is produced from a DC voltage by means of an inverter (11), which is formed by gate turn-off power semiconductors in a bridge circuit, and in that the compensation voltage (Ucomp) is injected in series directly into the line (10).
Bibliography:Application Number: US19980126956