backup power supply, energy consumption, renewable energy sources, combined system, wind turbine generator, engine, diesel unit, power, block diagram, mobility, efficiency, dependence


Purpose. The objective of research is to develop a version of combined mobile system of the main and backup power supply  based on renewable and traditional energy sources for low-power consumers in regions distant from the main electricity grid; to describe the design of the proposed system; to develop a block diagram of the control and management algorithm for the system elements aimed at achieving more efficient energy supply to consumers in case of further implementation of the system,.

Methodology. To attain the research objective, the following methods have been employed: the method of analytical processing of the reviewed materials on current state of alternative energetics, on problems related to energy supply for low-power remote consumers, and on ways of solving the problems identified by means of simulating potential uninterruptible power systems; the method of system analysis of complex estimation based on modern computer technologies as for the combined mobile system of the main and backup power supply potential.

The results obtained. The expediency of development and further improvement of such combined power supply systems intended for low-power consumers with the purpose of providing the energy balance in the Dnipro region (Ukraine) has been revealed and proved. A version of the combined system based on traditional and renewable sources of power is proposed and described. The block diagram of the combined system controller algorithm is developed. The mechanism of action of the presented algorithm is determined, as well as the graphical dependences of the power factor on the speed of the wind turbine CP=f(Z), and of mechanical torque of the wind turbine on the coefficient of its speed M=f(Z) are obtained and analyzed. The results of calculation as for electric power generated by potential wind power plant W, [kWh] during the year are presented.

Scientific novelty consists in the proposed block diagram of the control and management algorithm as regards the combined backup power supply system, that allows wind turbine engines and diesel units to alternately operate on a single generating unit.

The practical value of study is further development of the system which provides guaranteed uninterruptible energy supply and distribution of electric energy intended for low-power energy consumers to satisfy their needs; increasing the efficiency, flexibility and reliability of the system and, ultimately, reducing the energy dependence of the country on the import of traditional fossil energy resources, the conversion of which leads to negative consequences for the country's ecology. The implementation of the proposed block diagram of the control and management algorithm will reduce the cost of the system and the cost of its maintenance, for example, current repairs, etc.

Author Biographies

F.P. Shkrabets, National technical university “Dnipro Polytechnic”, Dnipro, Ukraine

Sci.D, Professor, the head of the renewable sources of energy department

V.V. Berdnyk, National technical university “Dnipro Polytechnic”, Dnipro, Ukraine

Postgraduate student, renewable sources of energy department


[1] Shcrabets, F. P., Krasovskyi, P.Yu., & Berdnyk, V.V. (2017). The Systems of Backup Power Supply Based on Renewable Energy Sources for Mobile Facilities. Scientific Bulletin of National Mining University, 2017, 2, 81-86.

[2] Sandler, A.S., Sarbatov, R.S. (1966). Preobrazovateli chastoty dlya upravleniya asinkhronnymi dvigatelyami [Frequency Converters for the Control of Asynchronous Motors]. M. – L.: Energiya, 144. (in Russian)

[3] Kannan, N. & Vakeesan, D. (2016). Solar Energy for Future World: A Review. Renewable and Sustainable Energy Reviews, 62, 1092-1105.

[4] Kaldellis, J.K. (2010). Overview of Stand-Alone and Hybrid Wind Energy Systems. Woodhead Publishing Limited, 2010, 1, 27.

[5] Kaldellis, J.K. (2010). Feasibility Assessment for Stand-Alone and Hybrid Wind Energy Systems. Woodhead Publishing Limited, 102, 61.

[6] Bhuvaneswari, G. & Balasubramanian, R. (2010). Hybrid Wind-Diesel Energy System. Woodhead Publishing Limited, 1, 191-215.

[7] Philip, S. & Samuel, F. (2016). Off-grid solar photovoltaic systems for rural electrification and emissions mitigation in India. Solar Energy Materials and Solar Cells, 1, 147-156.

[8] Philip, S. & Ned, E. (2017). What are the greatest opportunities for PV to contribute to rural development? Energy Procedia, 1, 139-146.

[9] Salas, V. & Olias, E. (2006). Review of the maximum power point tracking algorithms for stand-alone photovoltaic systems. Solar Energy Materials and Solar Cells, 2, 555-1578.

[10] Salas, V. & Suponthana, W. (2015). Overview of the off-grid photovoltaic diesel batteries systems with AC loads. Applied Energy, 2, 195-216.

[11] Joydip, J. & Saha, H. (2017). A review of inverter topologies for single-phase grid-connected photovoltaic systems. Renewable and Sustainable Energy Reviews, 2, 1256-1270.

[12] Sechilariu, M. & Wang, B. (2013). Building Integrated Photovoltaic System with Energy Storage and Smart Grid Communication. IEEE Transactions on Industrial Electronics, 2, 1607-1618.

[13] Wang, B. & Locment, F. (2012). Intelligent DC microgrid with smart grid communications: Control strategy consideration and design. IEEE Transactions on Smart Grid, 2, 2148-2156.

[14] Mohandes, M. & Halawani, T. (2004). Support vector machines for wind speed prediction. Renewable Energy, 2, 939 – 947.

[15] Shefter, YA., Rozhdestvenskiy, I. (1957). Izobretatelyu o vetrodvigatelyakh i vetroustanovkakh [To the Inventor about Windmills and Wind Turbines]. M. Izdatel'stvo ministerstva sel'skogo khozyaystva, 145. (in Russian)

[16] Nacfaire, H. (2005). Wind-Diesel and Wind Autonomous Energy Systems. Elsevier applied science London and New York, 2, 200-18.

[17] Abramovich, B., Bel'skiy, A. (2012). Vybor parametrov vetrodizel'noy ustanovki dlya energoobespecheniya mineral'no-syr'yevogo kompleksa [Selection of Parameters of a Wind-Diesel Plant for Energy Supply of a Mineral-Raw Complex]. Zapiski Gornogo instituta, 195, 227-230. (in Russian)

[18] Grakhov, Yu., Matveyenko O., Solomin, Ye. (2010). Inzhenernyy metod i matematicheskoye modelirovaniye v proyektirovanii vetroenergeticheskikh ustanovok [Engineering Method and Mathematical Modeling in the Design of Wind Power Plants]. Vestnik YUUrGU, 9, 45-52. (in Russian)

[19] Kharitonov, V.P. (2006). Avtonomnyye vetroelektricheskiye ustanovki [Autonomous Wind Power Plants]. M. GNU VIESKH, 280. (in Russian)

[20] Yegorova, A.S. (1967). Spravochnik po klimatu SSSR [Handbook on the Climate of the USSR]. L. Gidrometizdat, 305. (in Russian)

[21] Krivtsov, V.S., Yakovlev, O.I., Oleinikov, O.M. (2004). Nevicherpna yenergíya [Inexhaustible Energy]. Kniga 1: Vítroyelektrogeneratori [Book 1: Wind-driven generators]. National Aerocosm. University “Kharkiv. aviat. іnstitute”, Kharkiv; Sevast. National. Tech. University, Sevastopol, 396. (in Ukrainian)



How to Cite

Shkrabets, F., & Berdnyk, V. (2018). COMBINED MOBILE POWER SYSTEM FOR THE STANDBY POWER SUPPLY OF THE LOW AND AVERAGE ELECTRICAL FACILITIES. Electrical Engineering and Power Engineering, (2), 45–54.