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Reactive Power Meter for Nonsinusoidal Systems

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3 Author(s)

This paper describes a novel reactive power meter realized by electronic circuits that determine successively the terms of the equation Q = ¿n=1¿VrIrsin¿r for n significant harmonics. The harmonic contributions to the total reactive power is determined by electronic simulation of the mathematical expression that sets the orthogonal condition of two functions in a periodical interval. Partial reactive power with its sign are stored and added in a circuit to get at the end of the cycle the total reactive power. A control system permits operation in a repetitive form.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:26 ,  Issue: 3 )