METHOD AND AREA ELECTRIC POWER SYSTEM DETECTING ISLANDING BY EMPLOYING CONTROLLED REACTIVE POWER INJECTION BY A NUMBER OF INVERTERS

An area electric power system includes a number of direct current power sources, and a number of inverters operatively associated with the number of direct current power sources. Each of the number of inverters is structured to provide real power and controlled reactive power injection to detect isl...

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Bibliographic Details
Main Authors MHASKAR UDAY, BHAVARAJU VIJAY, PRASAI ANISH, PEPLINSKI RICHARD P
Format Patent
LanguageEnglish
Published 14.03.2013
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:An area electric power system includes a number of direct current power sources, and a number of inverters operatively associated with the number of direct current power sources. Each of the number of inverters is structured to provide real power and controlled reactive power injection to detect islanding. An output is powered by the number of inverters. A number of electrical switching apparatus are structured to electrically connect the number of inverters to and electrically disconnect the number of inverters from a utility grid. A number of devices are structured to detect islanding with respect to the utility grid responsive to a number of changes of alternating current frequency or voltage of the output.
Bibliography:Application Number: US201213669638