PECULIARITIES OF CALCULATING STATIONARY HEATING OF WINDINGS OPERATING IN COMPLEX FORCED CONTROL SYSTEMS

Authors

DOI:

https://doi.org/10.20998/2074-272X.2019.5.02

Keywords:

electromagnets, thermal field, forced control, switching devices, Maple computing environment, computer simulation

Abstract

General description of the research topic. A technique and an algorithm for calculating the thermal field of electromagnets operating in complex forced systems proposed by authors are considered. The widespread use of such devices in electromechanical switching devices allows not only to increase their speed but also significantly reduce the size, mass and energy losses, which indicates the relevance of this topic. The mathematical model of heating the windings of forced electromagnets proposed by the authors is a system of 1D differential equations of stationary heat transfer in a cylindrical coordinate system, supplemented by equations of electrical and magnetic circuits. This model allows to take into account the ripple of the currents in the windings and the losses in the magnetic core due to these ripples, contains certain signs of scientific novelty and represents the goal of the paper. The algorithm developed by the authors for calculating the thermal field of electromagnets operating in forced control systems is a complex iterative cycle. Its implementation is greatly simplified by using the Maple computing environment which allows to realize complicated and cumbersome mathematical transformations, automates the process of computations, and obtain results of numerical simulation in a convenient tabular and/or graphic form, which indicates the practical significance of this works. The results of comparison of computation results with experimental data presented in the paper indicate the adequacy of the model and algorithm proposed.

References

Klymenko B.V. Forced electromagnetic systems.Moscow, Enegroatomizdat Publ., 1989. 160 p. (Rus).

Zalessky A.M., Kukekov G.A. Thermal calculations of electrical apparatus.Leningrad, Energy Publ., 1967. 378 p. (Rus).

Loginov V.S. Approximate methods for thermal calculation of the active elements of electrophysical installations.Moscow, Physmatlit Publ., 2009. 272 p. (Rus).

Chunihin A.A. Electrical apparatus. General course.Moscow, Energoatomizdat Publ., 1988. 720 p. (Rus).

Akimov E.G., Belkin G.S., Godzhello A.G. Fundamentals of the theory of electrical apparatus. Textbook. Ed. P.A. Kurbatov. 5th Edition.St. Petersburg, Lan Publ., 2015. 588 p. (Rus).

Kuznetsov R.S. Apparatus for the distribution of electrical energy for voltages up to 1000 V.Moscow, Energy Publ., 1970. 544 p. (Rus).

Taev I.S. Electrical control apparatus.Moscow, High school Publ., 1969. 444 p. (Rus).

Alexandrov G.N., Borisov V.V., Kaplan G.S. Theory of electrical apparatus: Textbook for Universities. Ed. Prof. G.N. Alexandrov. 2nd Edition.St. Petersburg, Publishing House of SPbTU, 2000. 540 p. (Rus).

Pekker I.I., Nikitenko A.G. Calculation of electromagnetic mechanisms on computers.Moscow, Energy Publ., 1967. 168 p. (Rus).

Petrov G.N. On the heating of current-flowing coils. Bulletin of Electrical Engineering Industry, 1930, no.2 (Rus).

Jakob M. Influence of non-uniform development of heat upon the temperature distribution in electrical coils and similar heat sources of simple form. Trans. ASME, 1943, vol.65, pp. 593-605.

Liubchik M.A. Calculation and design of DC and AC electromagnets of direct and alternating current.Moscow, GEI Publ., 1959. 227 p. (Rus).

Mikheev M.A., Mikheeva I.M. Heat transfer basics. 2nd Edition. Moscow, Energy Publ., 1977. 344 p. (Rus).

Holman J.P. Heat Transfer. McGraw-Hill, NY, 2002. 665 p.

Lykov A.V. Heat conductivity theory. Moscow, High school Publ., 1967. 600 p. (Rus).

Baіda Ye.І., Clemens M., Klymenko B.V., Korol O.G., Pustovoіtov P.Ye., Application of the computing environment maple to the calculation of the dynamics of the electromagnets in the complicated systems of forced control. Electrical Engineering & Electromechanics, 2019, no.3, pp. 18-23. doі: 10.20998/2074-272X.2019.3.03.

Korol O.G., Klymenko B.V., Eresko O.V. Investigations of transients in the forced control device of the vacuum contactor monostable electromagnet. Bulletin of NTU «KhPI». Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, 2018, no.32(1308), pp. 34-40 (Ukr). doi: 10.20998/2079-3944.2018.32.06.

Downloads

Published

2019-10-28

How to Cite

Baida, E. I., Clemens, M., Klymenko, B. V., Korol, O. G., Pantelyat, M. G., & Pustovoitov, P. Y. (2019). PECULIARITIES OF CALCULATING STATIONARY HEATING OF WINDINGS OPERATING IN COMPLEX FORCED CONTROL SYSTEMS. Electrical Engineering & Electromechanics, (5), 12–19. https://doi.org/10.20998/2074-272X.2019.5.02

Issue

Section

Electrical Machines and Apparatus