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

STRUCTURES OF SINGLE-PHASE CONVERTORS UNITS FOR COMBINED ELECTRICAL SUPPLY SYSTEMS WITH PHOTOELECTRIC SOLAR PANELS

Author
A.A. Shavelkin
Kiev National University of Technology and Design,
str. Nemyrovych-Danchenka, 2, Kyiv, 01011, Ukraine,
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Abstract

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

References

1. Sung-Hun Ko, Seong-Ryong Lee, Hooman Dehbonei, Nayar C.V. A Grid-Connected Photovoltaic System with Direct Coupled Power Quality Control. IEEE Transactions.  2006.  Рр. 5203-5208.

2. Tsao-Tsung Ma. Power Quality Enhancement in Micro-grids Using Multifunctional DG Inverters. Proc. of the International MultiConference of Engineers and Computer Scientists. Hong Kong, March 14-16 2012. Vol. II. Pp. 996-1001.

3. K Rama Chakravarthi I. Design & Simulation of 11-level Cascaded H-bridge Grid-tied Inverter for the application of Solar Panels. International Journal of Science Engineering and Advance Technology. 2014. Vol. 2. Issue 1. Pр. 15-21. URL: www.ijseat.com (Accessed 23.05.2017)

4. Prakash Kumar Dewangan, Nagdeve U.T. Review Of An Inverter For Grid Connected Photovoltaic (PV) Generation System. International journal of scientific & technology research. 2014. Vol. 3. Pр. 240-245.

URL: www.ijstr.org (Accessed 23.05.2017)

5. Shavelkin A.A. Single-phase multilevel converter for combined power supply systems with photovoltaic solar cells. Visnyk Kyivskoho natsionalnoho universytetu tekhnolohii i dyzainu. 2017. No 2 (108). Pp. 89-98. (Rus)

6. Shavolkin O.O. Power Electronics: teach. manual. Kyiv: Kyivskyi natsionalnyi universytet tekhnolohii i dyzainu, 2017. 396 p. (Ukr)

7. SEMIKRON IGBT modules. URL: https://www.semikron.com/products/product-classes/igbtmodules.html (Accessed 14.04.2017)

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