RESONANT ELECTROMAGNETIC PROCESSES AT UNSTABLE OPERATION OF SLIDING CURRENT COLLECTOR UNITS OF TURBOGENERATOR

Igor Plokhov, Igor Savraev, Alexander Ilyin, Oksana Kozyreva, Alexander Dementiev

Abstract


The article is devoted to study of the resonance electromagnetic oscillations arising during unstable operation of the sliding current collection unit of turbo-generators. Mathematical modeling of these processes is carried out. It has been established that it is these processes that are the main cause of increased sparking and “ring fire” or “breakdown of commutation” on contact rings.


Keywords


sliding current collector units, resonance, mathematical model, computer simulation

Full Text:

PDF

References


Mechanics of sliding contact / V.I.Nellin, N.Y.Bogatyrev, L.V.Lozhkin et al. – M.: Transport. 1966. 255 p. (in Russian).

Samorodov Y. N. Paradoxical properties of sliding contact in BCA. – M.: NTF “Energoprogress”, 2013.56 p. (in Russian).

Ilyin, L., Plokhov I., Kozyreva, O., and etc. Synergetic model of electro-friction interaction. Environment. Technology. Resources. Rezekne, Latvia. Proceedings of the 12th International Scientific and Practical Conference, June 20–22, 2019. Volume III. P. 208–213, http://dx.doi.org/10.17770/etr2019vol3.4072

Typical instructions for the operation and repair of the slip ring assembly and brush apparatus of turbine generators with a capacity of 63 MW and above. RD 153-34.0-45.510-98. M.: SPO ORGRES, 2000. (in Russian).

Braude L. I., Borozinets B. V., Maslov V. V. Operational control of serviceability of brush-contact devices of turbogenerators. – Electric power stations, 1998, No. 1. (in Russian).

Oksana Kozyreva, Igor Plokhov, Nikita Kotkov, and etc. Experimental investigations of effect of LC-circuits on sparking and thermal state of sliding electric contact unit. Environment. Technology. Resources, Rezekne, Latvia, Proceedings of the 11th International Scientific and Practical Conference. Volume III, 2017. P.150–153, http://dx.doi.org/10.17770/etr2017vol3.2575

Oksana Kozyreva, Igor Plokhov, Igor Savraev, and etc. Reducing sparking in the transient layer of the sliding electrical contact unit. 19th International Scientific Conference on Electric Power Engineering, Brno, Czech Republic, 16–18 May 2018. P.223–227, https://dx.doi.org/10.1109/EPE.2018.8395969

Popov I. N., Zrazhevsky S. M., Kalmykov A.V. On condition monitoring and tuning of brush-contact devices of turbogenerators. Electronic publication on the website “Electric networks”: https://leg.co.ua/arhiv/generaciya/o-kontrole-sostoyaniya-i-nastroyke-schetochno-kontaktnyh-apparatov-turbogeneratorov.html. (in Russian).

Theory of systems with variable structure // Emelyanov S. V., Utkin V. I., Taran V. A., et al. Ed. Emelyanova S. V. – M.: Nauka. 1970. 592 p. (in Russian).

Haken G. Synergetrics. M.: World. 1980. 400 p. (in Russian).

Haken G. Synergetrics Hierarchy of instabilities in self-regulating systems. M.: World. 1985. 419 p. (in Russian).

Fuller B.R. Sinergetics. N.Y.: MacMillan. 1982. 350 p.

Device for reducing spark formation in the node of a sliding current collector / Plokhov I. V., Ilyin A.V., Isakov A. N., Kozyreva O. I. Patent for utility model No. 132630, publ.: 2013.09.20. (in Russian).

Device for reducing sparking in the sliding current collector assembly / Kotkov N. A., Plokhov I. V., Kozyreva O. I., Ilyin A.V., Savraev I. E. Patent for invention No. 2685695, publ.: 23.04.2019. (in Russian).




DOI: https://doi.org/10.17770/etr2021vol3.6530

Refbacks

  • There are currently no refbacks.


SCImago Journal & Country Rank