Assessment of balance reliability in local elecrtic system with alternative renewable sources of energy

: pp. 37-44
Vinnytsia National Technical University
Vinnytsia National Technical University
Vinnytsia National Technical University

The research suggests a solution of the actual problem of analyzing the instability of generation of renewable sources of energy (RSE), in particular, solar power plants (SPP). The impact of instable RSE generation on the power balance in a local electric system is shown. The law of distribution of solar power plant’s generation for a certain time interval of the day during a year is analyzed. A mathematical model of SPP generation is proposed in the form of Gaussian mixtures. The basic characteristics of probabilistic nature of solar plant’s generation are obtained. The possibility to coordinate solar plant’s generation with daily consumption graphs is assessed. The probability of covering the given loadgraph by SEP generation during acertain time interval of the day throughout the year is determined. The obtained probabilistic characteristics of the balancing process make it possible to determine the 
probability of ensuring the balance reliabilityby SPP generation in a set interval of the day.

  1. O. Kyrylenko, Y. Peterheria, T. Tereschenko, and V. Zhuikov, Intelligent systems of electric energy flows control in local objects. Kyiv, Ukraine: Media Press, 2005. (Ukrainian)
  2. P. Lezhniuk, A. Nikitorovych, O. Kovalchuk, and V. Kulyk, “Automation of distributed sources of electric energy operation in local electrical grid, based on SMART Grid concept”. In Proceedings of the Institute of Electrodynamics of NASU. Collection of scientific papers. Special Issue, pp. 136-143, 2013. (Ukrainian)
  3. C. Borges and D. Falcao, “Optimal distributed generation allocation for reliability, losses, and voltage improvement”, Int. J. Elect Power Energy Syst., vol. 28, no. 6, pp. 413–420, 2006.
  4. Q. Jiang, G. Geng, C. Guo, and Y. Cao, “An efficient implementation of automatic differentiation in interior point optimal power flow,” IEEE Trans. Power Syst., vol. 25, no. 1, pp. 147–155, Feb. 2010.
  5. Intelligent electric grids: elements and modes, O.V. Kyrylenko, Ed., Kyiv, Ukraine: Institute of Electro­dynamics of NASU, 2016. (Ukrainian)
  6. V. Popov, E. Yarmoliuk, and P. Zamkovoy, “Algorithm ofmulticriterial control of microgrids operation modes”, East-European journal of advanced technologies, no. 2, p. 61-68,2014. (Russian)
  7. O. Kyrylenko O. Pavlovskyi, A. Yandulskyi, and S. Steliuk, “Operation control of electrical station with renewable sources of energy in conditions of frequency variations in electric system”, Technical electrodynamics, no.4, pp. 52-57, 2012. (Ukrainian)
  8. O. Yandulskyi, G. Trunina, and A. Nesterko, “Optimal voltage regulation in distribution electric grid with the source of distributed generation with the account of their belonging to one owner while using the reserve of active power”, Bulletin of Kremenchuk Mykhala Ostrogradskyi National University, vol. 2, pp. 50-54, 2015. (Ukrainian)
  9. O. Rubanenko, V. Lesko, “Optimal control of EES normal modes with the account of technical state of the transformers with LTC”. In Proceedings of the Institute of Electrodynamics of National Academy of Science of Ukraine. Special issue, pp. 154-161, 2013. (Ukrainian)
  10.  O. Burykin, Y. Malohulko, “Optimization of operation mode of local elecrtical systems with renewable sources of energy”, Proceedings of DonNTU. Series "Electrical engineering and power engineering”, vol. 15, no. 2, pp. 42-46, 2013. (Ukrainian)
  11.  P. Lezhniuk, O. Kovalchuk, O. Nikitorovich, and V. Kulik, Renewable sources in distribution electric grids: Monograph. Vinnytsia, Ukraine: VNTU, 2014. (Ukrainian)
  12.  NIST Releases Report on Smart Grid Development. National Institute of Standards and Technology (USA) - Recognized Standards for Inclusion. In Smart Grid Interoperability Standards Framework, Release 1.0 (Electronic resource). bin / view / _SmartGridInterim.
  13.  S. Aivazian, V. Bukhshtaber, I. Eniukov, and L. Meshalkin, Applied Statistics: Classification and dimensionality decrease, Moscow, Russia: Finance and Statistics, 1989. (Russian)
  14. P.D. Lezhniuk, V.J. Komar, and S.V. Kravchuk, “Determination of optimal power of the reserve for provision of balance reliability of local electric system”, Bulletin of NTU "KhPI" Series: New solutions in modern technologies, Kharkiv, Ukraine: NTU "KhPI", vol. 1214, no.42, pp. 69-75, 2016. (Ukrainian)