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DOI: https://doi.org/10.15407/techned2018.02.039


Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue No 2, 2018 (March/April)
Pages 39 – 46


A.A. Shavelkin
Kiev National University of Technology and Design,
str. Nemyrovych-Danchenka, 2, Kyiv, 01011, Ukraine,
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Schematic solutions of single-phase converter units for combined electrical supply systems with a power active filter function are considered with 24-hour operation and taking into account the voltage variation of the photovoltaic solar battery and using the improved principle of inverter current generation with a fixed carrier frequency. The selection of the power circuit parameters, of the settings of the values of the carrier frequency and the deviation of a current are justified. A variable structure of the control system with a slave circuit of inverter output current and various external regulators for day, night and autonomous operation modes is proposed. Results of modeling for the system: "network - unit with serial connection of inverters with solar batteries - load" are given. References 7, figures 5, tables 2.


Key words: combined electrical supply system, power active filter, photovoltaic solar battery, cascade circuit of a grid inverter, energy losses in switches.


Received:    06.07.2017
Accepted:    06.12.2017
Published:  01.03.2018




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