The influence of nonlinear load on the autonomous electrical network at parallel work of the active power filter
Keywords:active power filter, pq-theory power, synchronous generator, electrical energy quality, non-linear load
Purpose. The purpose of the article is to investigate the modes of operation of a three-phase active power filter in the composition of an autonomous electrical network when connected to a network of three-phase nonlinear load of different spectral character.
Methodology. For the research, the provisions of the pq-theory of power, the theory of electrical circuits, the theory of automatic control, mathematical modeling in the Matlab package were used.
Findings. The graphs and spectral composition of the mains voltage and load current have been obtained, which makes it possible to evaluate the effectiveness of using a power active filter in the filtration mode as part of an autonomous electrical network, which is a synchronous generator.
Originality. The efficiency of the parallel operation of a power active filter in the filtration mode with a synchronous generator at an abruptly variable nonlinear load is proved.
Practical value. The use of the proposed technique will make it possible to create a three-phase power active filter for its use in autonomous electrical networks, represented by a synchronous generator with automatic regulation of the excitation voltage.
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