Features of excitation of a linear electromechanical converter of induction type from an AC source
Keywords:linear electromechanical induction-type converter, mathematical model, high-speed and shock-power operation mode, alternating current source, maximum speed, electrodynamic force impulse
Purpose. The purpose of the article is to establish the basic laws of operation of induction-type linear electromechanical converter (LEMС) during operation in high-speed and shock-power modes and excitation from an AC source of increased frequency. Methodology. With the help of a mathematical model, the regularities of the course of processes in a LEMС, excited from an AC source, were established when working with shock-power and high-speed modes. The solutions of the equations of the mathematical model, which describe interrelated electrical, magnetic, mechanical and thermal processes, are presented in a recurrent form. Results. It was found that when the LEMC operates in the shock-power mode, the maximum value of the current in the inductor winding occurs in the first half-period, and in the inhibited armature winding in the second half-period. The electrodynamic force changes at twice the frequency, taking on both positive and negative values. Since the positive values exceed the negative ones, the magnitude of the impulse of the electrodynamic force increases with each period of the force. Depending on the initial voltage phase, the relative change in the magnitude of the force impulse is 1.5 %. It was found that when the LEMC operates in high-speed mode, the current in the inductor winding in the first half-period has the greatest value, but after several periods it takes on a steady state. The temperature rise of the inductor winding increases with the time of connection to the AC source, and the temperature rise of the armature winding has the nature of saturation. The electrodynamic force has an oscillatory character with strong damping and a significant predominance of the positive component. Depending on the initial phase of the voltage, the relative change in the maximum speed of the armature winding is 2.5 %. Originality. For the first time, a mathematical model of the LEMC, excited from an AC source, was developed, the solutions of the equations of which describe the interrelated electrical, magnetic, mechanical and thermal processes. For the first time, the regularities of the course of processes in LEMC were established when working with shock-power and high-speed modes. Practical value. The characteristics of LEMC are obtained, which determine the efficiency of work in shock-power and high-speed modes. It is shown that the initial voltage phase has no significant effect on the power, high-speed thermal performance of the converter excited from an alternating current source.
Guangcheng F., Wang Y., Xu Q., Xinyi N., Yan Z. Design and analysis of a novel three-coil reconnection electromagnetic launcher. IEEE Transactions on Plasma Science, 2019, vol. 47, no. 1, pp. 814-820. doi: https://doi.org/10.1109/tps.2018.2874287.
Go B.-S., Le D.-V., Song M.-G., Park M., Yu I.-K. Design and electromagnetic analysis of an induction-type coilgun system with a pulse power module. IEEE Transactions on Plasma Science, 2019, vol. 47, no. 1, pp. 971-976. doi: https://doi.org/10.1109/tps.2018.2874955.
Angquist L., Baudoin A., Norrga S., Nee S., Modeer T. Low-cost ultra-fast DC circuit-breaker: Power electronics integrated with mechanical switchgear. 2018 IEEE International Conference on Industrial Technology (ICIT), 2018, Lyon, pp. 1708-1713. doi: https://doi.org/10.1109/icit.2018.8352439.
Vilchis-Rodriguez D.S., Shuttleworth R., Barnes M. Modelling thomson coils with axis-symmetric problems: practical accuracy considerations. IEEE Transactions on Energy Conversion, 2017, vol. 32, no. 2, pp. 629-639. doi: https://doi.org/10.1109/tec.2017.2651979.
Kondratiuk M., Ambroziak L. Concept of the magnetic launcher for medium class unmanned aerial vehicles designed on the basis of numerical calculations. Journal of Theoretical and Applied Mechanics, 2016, vol. 54, iss. 1, pp. 163-177. doi: https://doi.org/10.15632/jtam-pl.54.1.163.
Liu X., Yu X., Ban R., Li Z. Analysis of the capacitor-aided meat grinder circuits for an inductive pulsed power supply. IEEE Transactions on Plasma Science, 2017, vol. 45, no. 7, pp. 1339-1346. doi: https://doi.org/10.1109/tps.2017.2705179.
Gorodzha K.A., Podoltsev O.D., Troshchinsky B.A. Electromagnetic processes in pulse electrodynamic emitter for exciting elastic oscillations in concrete structures. Technical Electrodynamics, 2019, no. 3, pp. 23-28. doi: https://doi.org/10.15407/techned2019.03.023.
Yadong Z., Ying W., Jiangjun R. Capacitor-driven coil-gun scaling relationships. IEEE Transactions on Plasma Science, 2011, vol. 39, no. 1, pp. 220-224. doi: https://doi.org/10.1109/tps.2010.2052266.
Bolyukh V.F., Shchukin I.S. Lineinye induktsionno-dinamicheskie preobrazovateli [Linear induction-dynamic converters]. Saarbrucken, Germany, LAP Lambert Academic Publ., 2014. 496 p. (Rus).
Driga M.D., Weldon W.F., Woodson H.H. Electromagnetic induction launchers. IEEE Transaction on Magnetics, 1986, vol. 22, no. 6, pp. 1453-1458. doi: https://doi.org/10.1109/tmag.1986.1064639.
Balikci A., Zabar Z., Birenbaum L., Czarkowski D. Improved performance of linear induction launchers. IEEE Transactions on Magnetics, 2005, vol. 41, no. 1, pp. 171-175. doi: https://doi.org/10.1109/tmag.2004.839283.
Bolyukh V.F., Kocherga A.I., Schukin I.S. Investigation of a linear pulse-induction electromechanical converter with different inductor power supply circuits. Electrical Engineering & Electromechanics, 2018, no.1, pp. 21-28. doi: https://doi.org/10.20998/2074-272x.2018.1.03.
Bolyukh V.F., Katkov I.I. Influence of the Form of Pulse of Excitation on the Speed and Power Parameters of the Linear Pulse Electromechanical Converter of the Induction Type. Volume 2B: Advanced Manufacturing, Nov. 2019, 8 p. doi: https://doi.org/10.1115/imece2019-10388.
Bolyukh V.F. Effect of electric conducting element on indicators of linear pulse electromechanical converter induction type. Technical Electrodynamics, 2020, no. 3, pp. 22-29. doi: https://doi.org/10.15407/techned2020.03.022.
Bolyukh V.F., Oleksenko S.V., Schukin I.S. Efficiency of linear pulse electromechanical converters designed to create impact loads and high speeds. Electrical Engineering & Electromechanics, 2015, no. 3, pp. 31-40. doi: https://doi.org/10.20998/2074-272X.2015.3.05.
Bolyukh V.F., Shchukin I.S. The thermal state of an electromechanical induction converter with impact action in the cyclic operation mode, Russian Electrical Engineering, 2012, vol. 83, no. 10, pp. 571-576. doi: https://doi.org/10.3103/S1068371212100045.
How to Cite
Copyright (c) 2021 V.F. Bolyukh, Yu.V. Kashansky, I.S. Schukin
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.