FIELD: measuring technology.
SUBSTANCE: invention relates to measuring technology, namely, to the assessment of the quality of electrical energy (QEE) in industrial power supply systems. The claimed method for analyzing the quality of electrical energy in a three-phase industrial power supply system contains stages in which: a set of electrical quantities is measured, a spatial vector is formed based on an instantaneous three-dimensional transformation of a set of measured electrical quantities, the current set of complex instantaneous values of the spatial vector is normalized in a given sliding window, an output signal characterizing the results of the analysis of the QEE in a three-phase industrial power supply system, they are formed on the basis of selective control on an alternative basis, for which a discrete signal is used, obtained by comparing the current generalized parameter of the QEE, determined by the results of simulation modeling of the industrial power supply system, taking into account the operating modes of the industrial consumer’s electric receivers.
EFFECT: development of a method for analyzing QEE in a three-phase system that implements selective control.
1 cl, 2 dwg
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