Peculiarities of the reactive power flow in the arc furnace supply circuit with improved electromagnetic compatibility
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- Category: Electrical Complexes and Systems
- Last Updated on 07 May 2019
- Published on 24 April 2019
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Authors:
A. A. Malinovskyi, Dr. Sc. (Tech.), Prof., orcid.org/0000-0001-9765-3494, State Higher Educational Institution Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.
V. H. Turkovskyi, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0003-1869-8139, State Higher Educational Institution Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. Z. Muzychak, Cand. Sc. (Tech.), orcid.org/0000-0002-6330-1076, State Higher Educational Institution Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it.
Yu. V. Turkovskyi, orcid.org/0000-0001-7657-7031, Individual entrepreneur, Lviv, Ukraine
Abstract:
Purpose. To suggest applying a converter with a characteristic of “constant current ‒ constant voltage” for supplying electrical arc furnaces.
Methodology. The MatLab Simulink software with matrix formation of electromagnetic state equations was used to obtain mode parameters for the installation. The averaged mode coordinates t for a certain interval of the furnace operation were calculated by taking into account the stochastic nature of the load based on the theory of probability.
Findings. It is demonstated that the use of the above converter allows choosing the required level of reactive power flow between the electric network and the furnace device and provides constant value of the reactive power flow due to maintaining steady current in operating modes. As a result, the voltage fluctuations are significantly reduced and phase loads are balanced. A possibility to maintain steady reactive power consumption in furnace operating modes and to influence the reactive power volume is shown.
Originality. An approach to the dynamic compensation of the reactive power of an electric arc furnace due to the device with static parameters is found.
Practical value. Applying the “constant current ‒ constant voltage” converter allows optimizing the reactive power use and its costs and improves electromagnetic compatibility of the arc furnace.
References.
1. Zhezhelenko, I. V., Shidlovsky, A. K., Pivniak, G. G., Saenko, Yu. L. and Noiberger, N. A., 2012. Electromagnetic compatibility of consumers. Moscow: Mashinostroyeniye.
2. Seker, M., Mammedov, A., Hiseyinov, R. and Kockanat, S., 2017. Power Quality Measurement and Analysis in Electric Arc Furnace for Turkish Electricity Transmission System. Elektronika ir Elektrotechnika, 23(6). DOI: 10.5755/j01.eie.23.6.19691.
3. Toma, A., Popa, G. N., Iagar, A. and Deaconu, S. I., 2010. Experimental analysis of electric parameters of a 100 t UHP electric arc furnace. In: 2010 IEEE International Conference on Industrial Technology. 14‒17 March 2010, Vina del Mar, Chile [online]. Available at: <https://www.researchgate.net/publication/251927323_Expemental_analysis_of_electric_parameters_of_a_100_t_ UHP_electric_arc_furnace> [Accessed 24 December 2017].
4. Martell-Chavez, F., Ramirez-Argaez, M., Llamas-Terres, A. and Micheloud-Vernack, O., 2013. Theoretical Estimation of Peak Arc Power to Increase Energy Efficiency in Electric Arc Furnaces. The Iron and Steel Institute of Japan International, 53, p. 743‒750.
5. Stopar, K., Kovacic, M., Kitak, P. and Pihler, J., 2014. Electric-arc-furnace productivity optimization. Materials and Technologies, 48(1), pp. 3‒7.
6. Djeghader, Y. and Labar, H., 2013. Investigation of Voltage Unbalance Problems in Electric Arc Furnace Operation Model [online]. Available at: <http: //ljs.academicdirect.org/A22/037_048.htm> [Accessed 17 January 2018].
7. Deacony, S. I., Popa, G. N. and Tihtomir, L., 2010. Comparative Study for EAF’s Reactive Energy Compensation Methods and Power Factor Improvement. WSEAS Transactions on Systems [online], 9(9), pp. 979‒988. Available at: <https://dl.acm.org/citation.cfm?id=1865391> [Accessed 11 January 2018].
8. Novitskiy, A., Konotop, I. and Westermann, D., 2013. Design of Reactive Power Compensation Devices on the Base of Dynamical Simulation of Steelmaking Process. In: International Conference on Renewable Energies and Power Quality (ICREPQ’13), Bilbao, Spain, 20‒22 March, 2013. RE&PQJ, 1(11), March 2013 [pdf], pp. 1164‒1167. Available at: <http://www.icrepq.com/icrepq’13/565-novitskiy.pdf> [Accessed 27 February 2018].
9. Samet, H. and Mojallal A., 2014. Enhancement of electric arc furnace reactive power compensation using Grey-Markov prediction method. IET Generation Transmission & Distribution, 8(9), pp. 1626‒1636.
10. Xu, D. and Yongming, Y., 2013. A novel AC electric arc furnace model and simulation for power quality study. Journal of Theoretical and Applied Information Technology, 49(3), pp. 887‒892.
11. Estrada-Villa, G. R., Cano Plata, E. A. and Ustariz-Farfan, A.J., 2014. Modeling electric arc furnace to estimate flicker levels in power systems using ATP. In: 16th International Conference on Harmonics and Quality of Power (ICHQP. 25‒28 May 2014, Bucharest, Romania [online]. Available at: <https://www.researchgate.net/publication/271481855_Modeling_electricarc_furnace_to_estimate_flicker_levels _in_power_systems_using_ATP> [Accessed 13 November 2017].
12. Sam Morello, Thomas J. Dionise and Thomas L. Mank, 2015. Installation, Startup and Performance of a Static Var Compensator for an Electric Arc Furnace Upgrade. In: 2015 IEEE Industry Applications Society Annual Meeting. DOI: 10.1109/IAS.2015.7356881.
13. Esfahani, M. T. and Vahidi, B., 2016. Electric arc furnace power quality improvement by applying a new digital and predicted-based TSC control. Turkish Journal of Electrical Engineering & Computer Sciences, 24, pp. 3724–3740.
14. Grünbaum, R., Hasler, J.-F. and Rasmussen, J., 2011. Statcom for mitigation of flicker emanating from a large EAF. In: 21st International Conference on Electricity Distribution Frankfurt, 6-9 June 2011 [pdf]. Available at: <http://www.cired.net/publications/cired2011/part1/papers/CIRED2011_0337_final.pdf> [Accessed 9 February 2018].
15. Varetsky, Y. and Gajdzica, M., 2015. Energizing arc furnace transformer in power grid involving harmonic filter installation. Przegląd Elektrotechniczny, 4, pp. 64‒69.
16. Nikolaev, A. A., 2017. Development of an improved method for selecting the power of a static thyristor compensator for an arc furnace. Power engineering of metallurgy, energy saving and electrotechnical systems. Vestnik Magnitogorsk State Technical University, 15(3), pp. 74‒92.
17. Malinovskyi, A. A., Turkovskyi, V. H., Muzychak, A. Z. and Turkovskyi, Yu. V., 2018. The Efficient Power Supply Scheme of Alternating Current Electric Arc Furnaces. In: 2018 IEEE 3rd International Conference on Intelligent Energy and Power Systems. DOI: 10.1109/IEPS.2018.8559585.
18. Seheda, M. S. and Ravlyk, N. O., 2014. Limiting of internal overvoltages in electric networks of power station auxiliaries during single-phase ground faults. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 6, рp. 116‒119.
19. Nikolaev, A. A., Tulupov, P. G. and Savinov, D. A., 2017. Statistical Analysis of Random Fluctuations of Currents in the Electric Arc Steel-making Furnace for Different Melting Techniques. In: International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 16-19 May 2017, St. Petersburg, Russia, DOI: 10.1109/ICIEAM.2017.8076206.
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