OVERLAPPING OF IMBALANCES OF GENERATED AND FORECAST ELECTRICITY BY SOLAR POWER PLANT AT THE EXPENSE OF THE ELECTRICITY ACCUMULATION SYSTEM

  • V. Budko 1National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Faculty of Electrical Power Engineering and Automatics 03056, 37 Peremohy Av., Kyiv, Ukraine. 2Institute of Renewable Energy of the National Academy of Sciences of Ukraine, 02094, 20A Hnata Khotkevycha St., Kyiv, Ukraine http://orcid.org/0000-0002-6219-4221
  • Y. Vainshtein National Technical University of Ukraine «Igor Sikorsky Kiev Polytechnic Institute», 03056, 37 Peremohy Av., Kyiv, Ukraine. http://orcid.org/0000-0002-7907-797X
Keywords: photovoltaic battery, solar power plant, rechargeable battery, capacity, electricity.

Abstract

Solar photovoltaics is developing rapidly, which leads to the emergence of new important engineering and scientific and applied problems, the solution of which is a key factor in the sustainable development not only of this sector of renewable energy, but also the entire power grid of Ukraine. One of such tasks is to increase the reliability of electricity generation by a photovoltaic power plant and its delivery to the network in accordance with the provided forecast for the day and separately for two hours in advance. The issue of stable generation is relevant not only for network photovoltaic power plants, but also for photovoltaic power plants that work to partially cover their own consumption, when it is important to meet the consumption schedule so as not to disrupt production processes. One of the options for solving this problem is the integration of various systems of electric energy storage into the photovoltaic power plant, including electrochemical batteries, which was investigated in this paper. Based on the analysis of real data on electricity generation during March 2020 by network photovoltaic power plants located in the Kherson region, the limits of non-compliance of the generated electricity with the stated forecast were determined. The relative values ​​of the required capacity of electrochemical batteries to ensure maximum compliance with the stated forecast. The calculation was based on the method of finding discrepancies between the approximated model and the real data, followed by the calculation of the deviation for each time point.

Graphical dependences of the relative value of the capacity of the battery system on the power of the station, as well as graphs of the rate of change of the relative value of the capacity of the system and the power of the station. Ref. 6, tab. 2, fig. 4.

Author Biographies

V. Budko, 1National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Faculty of Electrical Power Engineering and Automatics 03056, 37 Peremohy Av., Kyiv, Ukraine. 2Institute of Renewable Energy of the National Academy of Sciences of Ukraine, 02094, 20A Hnata Khotkevycha St., Kyiv, Ukraine

budko11.pngAuthor information: Head at the Department of Renewable Energy Sources of the National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Doctor of Technical Sciences
Education: National Technical University of Ukraine "Kiev Polytechnic Institute", engineer-technologist in the specialty "Technical Electrochemistry".
Research area: Processes of transformation and accumulation of energy of the Sun and wind; Improving the efficiency of autonomous and backup power supply systems based on renewable energy sources
Publications: more than 70 scientific works, 4 patents for inventions, 4 educational and methodical works

Y. Vainshtein, National Technical University of Ukraine «Igor Sikorsky Kiev Polytechnic Institute», 03056, 37 Peremohy Av., Kyiv, Ukraine.

Vainshtein.pngAuthor information:  Student of the Department of Renewable Energy Sources of the National Technical University of Ukraine "Kyiv Polytechnic Institute named after Igor Sikorsky", Doctor of Technical Sciences
Education: National Technical University of Ukraine "Kyiv Polytechnic Institute", Bachelor's degree in "Electrical Engineering, Electrical Engineering and Electromechanics"
Research area: Solar power plants, Electric energy storage systems, renewable energy sources
Publications: 6

References

1. Kontseptsiia «Zelenoho» enerhetychnoho perekhodu Ukrainy do 2050. [The concept of "Green" energy transition of Ukraine until 2050]. Ministry of Energy and Environmental Protection.-2020. esmap.org. URL: https://www.esmap.org/node/57868. [in Ukrainian].
2. István Táczi. Overview of the Energy Storage Possibilities to Support the Electrical Power System. Research Paper to assist the ERRA Licensing and Competition Committee. 2016. [in English].
3. Alexandre Oudalov, Antoine Béguin, Rachid Cherkaoui. Sizing and Optimal Operation of Battery Energy Storage System for Peak Shaving Application. Conference Paper. 2007. [in English].
4. Tsung-Ying Lee, Nanming Chen. Determination of optimal contract capacities and optimal sizes of battery energy storage systems for Timeof-Use rates industrial customers. IEEE Transactions on Energy Conversion. Energy Conversion, 1995. Vol. 20(3). Pp. 562-568. [in English].
5. Even A., Neyens J., Demouselle A. Peak shaving with batteries, 12th International Conference on Electricity Distribution, 1993. [in English].
6. Energy Storage Trends and Opportunities. ESMAP, 2017. URL: https://www.esmap.org/node/57868 [in English].

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Published
2021-12-25
How to Cite
Budko, V., & Vainshtein, Y. (2021). OVERLAPPING OF IMBALANCES OF GENERATED AND FORECAST ELECTRICITY BY SOLAR POWER PLANT AT THE EXPENSE OF THE ELECTRICITY ACCUMULATION SYSTEM. Vidnovluvana Energetika, (4(67), 25-31. https://doi.org/10.36296/1819-8058.2021.4(67).25-31