Analysis of the influence of methods for controlling power unit with a pressurized water reactor for axial offset

Authors

DOI:

https://doi.org/10.15587/1729-4061.2014.23389

Keywords:

automated control system, program control, axial offset, maneuverable mode, VVER-1000

Abstract

The paper deals with analyzing the influence of the methods for controlling power unit with the VVER-1000 power unit in a maneuverable mode on a quantitative measure of stability, namely on the size of axial offset. Automated systems for controlling power units with the VVER-1000 reactor in maneuvering with such control programs as: with a constant average temperature of the coolant in the first loop, with a constant pressure in the second loop, with a sliding pressure in the second loop, with a constant water temperature at the input to AKZ of the reactor, were described. Also, the graphs of the reactor axial offset variations in a maneuverable mode from 100% to 80 % and vice versa were made and presented. It was found that in stationary automated control systems of power units with the VVER-1000 reactor, the axial offset is unstable and may lead to a decrease in stability and reliability of the reactor. The improved automated control systems allow maintaining sufficiently the axial offset constants and the necessary parameters of the control program on the whole range of power unit maneuvering.

Author Biographies

Максим Витальевич Максимов, Odessa National Polytechnic University Shevchenko Ave 1, Odessa, Ukraine, 65044

Doctor of Technical Sciences, Professor, Head of Department

Department of automation of processes of heat power

Тимур Витальевич Фощ, Odessa National Polytechnic University Prospect Shevchenko, 1a. Odessa, Ukraine, 65044

Postgraduate

Department of automation of heat power processes

Марк Витальевич Никольский, Odessa National Polytechnic University Prospect Shevchenko, 1a. Odessa, Ukraine, 65044

Postgraduate

Department of automation of heat power processes

References

  1. Averyanova, S. P. Integral and axial xenon oscillations superposition and VVER-1000 core energy-release stability [Text] / S. P. Averyanova, A. A. Dubov, P. E. Filimonov // Atomic Energy – 2011. – Vol. 111, Issue 1. – P. 8–14.
  2. Korennoi, A. A. Control of the axial distribution of the energy-release field in the VVÉR-1000 core during transient processes [Text] / A. A. Korennoi, S. N. Titov, V. A. Litus, O. V. Nedelin // Atomic Energy – 2011. – Vol. 88, Issue 4. – P. 257–262.
  3. Maksimov, M. V. Principles of controlling fuel-element cladding lifetime in variable VVER-1000 loading regimes [Text] / S. N. Pelykh, M. V. Maksimov, R. L. Gontar // Atomic Energy – 2012. – Iss. 4(112). – P. 241–249.
  4. Pelykh, S. N. Cladding rupture life control methods for a power-cycling WWER-1000 nuclear unit [Text] / S. N. Pelykh, M. V. Maksimov // Nuclear Engineering and Design. – 2011. – Vol. 241, № 8. – P. 2956–2963.
  5. Dall'Osso, A. A neutron balance approach in flux shape control [Text] / A. Dall'Osso // Annals of Nuclear Energy – 2011. – Vol. 8, Iss. 2-3, P. 302-306.
  6. Пелых, С. Н. Способ стабилизации аксиального распределения нейтронного поля при маневрировании мощностью ВВЭР-1000 [Текст] / С. Н. Пелых, M. В. Maксимов, Т. А. Цисельская, В. Е. Баскаков // Ядер. и радиац. безопасность. – 2011. – № 1 (49). – С. 27–32
  7. Shimazu, Y. Application of three axial offsets trajectory method for load follow operation control in PWRs [Text] / Y. Shimazu // Journal of Nuclear Science and Technology – 2001. – Vol. 38, Iss. 10, P. 809-818.
  8. Иванов, В. А. Эксплуатация АЭС [Текст] / В. А. Иванов. — СПб.: Энергоатомиздат, 1994. — с. 201 - 215.
  9. Maksimov, М. V. A model of a power unit with VVER-1000 as an object of power control [Text] / M. V. Maksimov, K. V. Beglov, Т. А. Tsiselskaya // Пр. Одес. політехн. ун-ту. - Одеса, 2012. - Вип. 1(38). - С. 99-106.
  10. Тодорцев, Ю. К. Анализ методов управления мощностью энергоблока c водо-водяным реактором при маневрировании [Текст] / Ю. К. Тодорцев, Т. В. Фощ, М. В. Никольский // Восточно-Европейский журнал передовых технологий – 2013. – Vol. 6, Iss. 8(66), P. 3-10.
  11. Цисельская, Т. А. Усовершенствованная АСР енергоблоком реактора [Текст] / О. Б. Максимова, Т. А. Цисельская // тез. доп. 10-та між нар. наук.–практ. конф. по атом. Енергетиці, Севастополь, 2002. – С. 33 – 40.
  12. Averyanova, S. P., Dubov, A. A., Filimonov, P. E. (2011). Integral and axial xenon oscillations superposition and VVER-1000 core energy-release stability. Atomic Energy, Vol. 111, Issue 1, 8–14.
  13. Korennoi, A. A., Titov, S. N., Litus, V. A., Nedelin, O. V. (2011). Control of the axial distribution of the energy-release field in the VVÉR-1000 core during transient processes. Atomic Energy, Vol. 88, Issue 4, 257–262.
  14. Pelykh S. N., Maksimov M. V., Gontar R. L. (2012). Principles of controlling fuel-element cladding lifetime in variable VVER-1000 loading regimes. Atomic Energy, Issue 4 (112), 241–249.
  15. Pelykh, S. N. (2011). Cladding rupture life control methods for a power-cycling WWER-1000 nuclear unit. Nuclear Engineering and Design, Vol. 241, Issue 8, 2956–2963.
  16. Dall'Osso, A. (2011). A neutron balance approach in flux shape control. Annals of Nuclear Energy, Vol. 8, Issue 2-3, 302–306.
  17. Pelykh, S.N. (2011). A method for stabilizing the axial distribution of the neutron field in maneuvering power of the VVER-1000. Nuclear and Radiological Security, Vol. 1, Issue 49, 27–32.
  18. Shimazu, Y. (2001). Application of three axial offsets trajectory method for load follow operation control in PWRs. Journal of Nuclear Science and Technology, Vol. 38, Issue 10, 809-818.
  19. Ivanov, V. A. (1994). Exploitation of NPP. Energy atom publisher, 43—50, 201—215.
  20. Maksimov, М. V. (2012). A model of a power unit with VVER-1000 as an object of power control. Works of the Odessa Polytechnic University, Issue 1 (38), 99–106.
  21. Todortsev, Y. (2013). Analysis of methods for controlling power unit with a pressurized water reactor in maneuvering. Eastern-european journal of enterprise technologies, Vol. 6, Issue 8 (66), 3–10.
  22. Tsiselskaya, Т. А. (2002). An improved ACS power reactor. Abstracts of 10th international scientific and practical conference of nuclear energy, 33–40.

Downloads

Published

2014-04-18

How to Cite

Максимов, М. В., Фощ, Т. В., & Никольский, М. В. (2014). Analysis of the influence of methods for controlling power unit with a pressurized water reactor for axial offset. Eastern-European Journal of Enterprise Technologies, 2(8(68), 19–27. https://doi.org/10.15587/1729-4061.2014.23389

Issue

Vol. 2 No. 8(68) (2014): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

License

Copyright (c) 2014 Максим Витальевич Максимов, Тимур Витальевич Фощ, Марк Витальевич Никольский

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.