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ArticleName Equipment to improve energy efficiency of power supply systems in mineral mining industry
DOI 10.17580/gzh.2019.05.16
ArticleAuthor Nos O. V., Dybko M. A.

Novosibirsk State Technical University, Novosibirsk, Russia:

O. V. Nos, Associate Professor, Doctor of Engineering Sciences,
M. A. Dybko, Deputy Head of Chair, Candidate of Engineering Sciences


The article gives a brief review of basic methods to improve energy efficiency of three-phase supply systems in mineral mining industry by means of introduction of passive correcting circuits and active power filters. Fro the comparative analysis, such approach allows eliminating the amplitude–phase asymmetry, removing high frequencies from harmonic compositions of currents and voltages, compensating wattless power, damping resonant events, etc. Furthermore, the converter installations of active filtration are advantageous for low intrinsic loss, modest requirements imposed on quality of electric energy and automatic adjustment to variable operating modes of electrical facilities and distribution mains configuration, which totally removes any application constraints. Based on the new approach to mathematic description of electric energy flux using 4D hypercomplex spaces, the authors present the results of synthesizing active filtration algorithms such that the threephase power supply systems with arbitrary nonlinear load abide to the sinusoidal law of change in current consumption from distribution mains combined with the unit or leading power factor at the simultaneous adherence to the condition of symmetry of instantaneous magnitudes. Implementation of the developed regulating structures need no high-power firmware since the remedial actions are formulated using less number of mathematical operations than in conventional compensation techniques and without any coordinate transformations.
The study has been supported by the Russian Science Foundation, Project No. 17–79–10235.

keywords Mineral mining industry, power supply, energy efficiency, active and passive force filters, instantaneous inactive power compensation.

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