Normalization of double-circuit overhead line magnetic field inside Khrushchev building
Keywords:magnetic field, overhead line, grid shield, reference level, quantity of metal
This paper deals with the mitigation of 110 kV double-circuit overhead line magnetic field inside five-story Khrushchev buildings. We show that the magnetic field can exceed the reference level 0.5 μT in 90 % part of living space. To mitigate the magnetic field, we propose the inverted L-shaped grid shield with conductors on the wall and in the attic of the building. Using the analytical model of the grid shield and the numerical simulation, we determine the parameters of the L-shaped grid shield which provides the magnetic field normalization in 97 % part of living space. Further improvement of the grid shield profile, in particular, the placement of some conductors in the basement, allows to reduce the quantity of metal of the shield by 15 % while maintaining the shielding efficiency. Also we consider the magnetic field normalization for the overhead line with a rated current of 500 A. In this case, the quantity of metal of the grid shield increases 2.74 times.
Reid S. Khrushchev Modern: Agency and modernization in the Soviet home. Cahiers du monde russe, 2006, no. 47, iss. 1, pp. 227-268. doi: https://doi.org/10.4000/monderusse.3800.
Decree of the Cabinet of Ministries of Ukraine dated March 4, 1997 No. 209 «About the statement of Rules of protection of electric networks», Edition on April 5, 2017. (Ukr).
Electrical installation regulations. Kharkiv, Fort Publ., 2017. 760 p. (Ukr).
Rozov V.Yu., Reutskyi S.Yu., Pelevin D.Ye., Pyliugina O.Yu. The magnetic field of power transmission lines and the methods of its mitigation to a safe level. Technical Electrodynamics, 2013, no. 2, pp. 3-9. (Rus).
Pelevin D.Ye. The methods of reducing of the magnetic fields of overhead power lines outside security zones. Technical Electrodynamics, 2014, no. 5, pp. 14-16. (Rus).
Krasnozhon A.V., Buinyi R.O., Dihtyaruk I.V., Kvytsynskyi A.O. The investigation of distribution of the magnetic flux density of operating two-circuit power line 110 kV «ChTPP-Chernihiv-330» in the residential area and methods of its decreasing to a safe level. Electrical Engineering & Electromechanics, 2020, no. 6, pp. 55-62. doi: https://doi.org/10.20998/2074-272X.2020.6.08.
Pelevin D.Ye. Screening magnetic fields of the power frequency by the walls of houses. Electrical Engineering & Electromechanics, 2015, no. 4, pp. 53-55. (Rus). doi: https://doi.org/10.20998/2074-272X.2015.4.10.
Rozov V., Grinchenko V. Simulation and analysis of power frequency electromagnetic field in buildings closed to overhead lines. Proc. 2017 IEEE First Ukraine Conference on Electrical and Computer Engineering, Kyiv, Ukraine, pp. 500-503. doi: https://doi.org/10.1109/UKRCON.2017.8100538.
Cardelli E., Faba A., Pirani A. Nonferromagnetic open shields at industrial frequency rate. IEEE Transactions on Magnetics, 2010, vol. 46, no. 3, pp. 889-898. doi: https://doi.org/10.1109/TMAG.2009.2031110.
Bavastro D., Canova A., Freschi F., Giaccone L., Manca M. Magnetic field mitigation at power frequency: Design principles and case studies. IEEE Transactions on Industry Applications, 2015, vol. 51, no. 3, pp. 2009-2016. doi: https://doi.org/10.1109/TIA.2014.2369813.
Cruz P., et al. Magnetic field mitigation in power lines with passive and active loops. Proc. CIGRE Session, 2002, no. 36-107.
Budnik K., Machczynski W. Power line magnetic field mitigation using a passive loop conductor. Poznan University of Technology Academic Journals. Electrical Engineering, 2013, vol. 73, pp. 137-145.
Canova A., del-Pino-Lopez J.C., Giaccone L., Manca M. Active shielding system for ELF magnetic fields. IEEE Transactions on Magnetics, 2015, vol. 51, iss. 3. doi: https://doi.org/10.1109/TMAG.2014.2354515.
Kuznetsov B.I., Nikitina T.B., Bovdui I.V. High voltage power lines magnetic field system of active shielding with compensation coil different spatial arrangement. Electrical Engineering & Electromechanics, 2019, no. 4, pp. 17-25. doi: https://doi.org/10.20998/2074-272X.2019.4.03.
Grinchenko V., Pyrohova U. Mitigation of overhead line magnetic field by U-shaped grid shield. Proc. 2019 IEEE Second Ukraine Conference on Electrical and Computer Engineering, Lviv, Ukraine, pp. 345-348. doi: https://doi.org/10.1109/UKRCON.2019.8879834.
Grinchenko V.S., Chunikhin K.V. Magnetic field normalization in residential building located near overhead line by grid shield. Electrical Engineering & Electromechanics, 2020, no. 5, pp. 38-43. doi: https://doi.org/10.20998/2074-272X.2020.5.06.
Koporovskii G.I., et al. Typical project 111-96-3. Residential buildings series 96. Kyiv, KyivZNIIEP Publ. (Rus).
SOU-N ЕЕ 20.179:2008. Calculation of electric and magnetic fields of power lines. Method (with changes). Kyiv, Minenergovugillja Ukrainy Publ., 2016. 37 p. (Ukr).
Grinchenko V.S. Development of a semi-analytical model of a grid shield for the magnetic field mitigation of overhead lines. Proc. VII All-Ukrainian Scientific Conf. of Young Scientists «Information Technologies – 2020», pp. 149-151. (Ukr).
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