METHOD AND SYSTEM FOR MEASURING IMBALANCES IN AN ELECTRICAL GRID
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United States of America Patent
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Dec 4, 2015
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Dec 11, 2014
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The invention relates to a method and a system for measuring imbalances in an electrical grid. The method comprises the steps of obtaining effective values and arguments of the phase voltages and currents at the fundamental frequency; calculating the effective value and the argument of the positive sequence voltages and the effective values of the negative sequence voltages; determining the active and reactive powers of each of the phases at the fundamental frequency; and calculating the value of the imbalance power vector according to the following equation:
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