Abstract
The major design purpose of the magnetic flux shunts is to reduce stray losses in the power transformer. Their influence on the surrounding leakage field, and thus the winding electromagnetic (EM) forces are also serious concerns, which are relevant to transformer operation safety. In this paper, the EM forces of transformer windings in the occurrence of magnetic flux shunts were studied based on the finite element method, which was validated by a double Fourier series method. The sensitivities of transformer EM forces to the shunt size and position were also investigated through parametric studies. The discussion on factors that influence the EM force should be of interest to practicing engineers in the transformer industry in winding strength calculation and magnetic shunt design.
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References
Ahn H, Lee J et al (2011) Finite element analysis of short circuit electromagnetic force in power transformer. IEEE Trans Industry Applications 47(3):1267–1272
Arand SJ, Abbaszadeh K (2004) The study of magnetic flux shunts effects on the leakage reactance of transformers via FEM. Majlesi J Electr Eng 4(3):47–52
Arivamudhan M, Vanamadevi N, Santhi S (2008) Measurement of axial leakage flux for the detection of winding deformation in transformer. In: Proceedings of 2008 IEEE region 10th conference
Cabanas MF et al (2005) A new online method based on leakage flux analysis for the early detection and location of insulating failures in power transformers. In: Proceedings of IEEE international symposium on diagnostics for electric machines, power electronics and drives
Cabanas MF et al (2009) Detection of Insulation faults on disk-type winding transformers by means of leakage flux analysis. In: Proceedings of IEEE international symposium on diagnostics for electric machines, power electronics and drives
Cabanas MF et al (2007) A new online method based on leakage flux analysis for the early detection and location of insulating failures in power transformers: application to remote condition monitoring. IEEE Trans Power Delivery 22(3):1591–1602
Chen Y et al (1999) Study on eddy current losses and shielding measures in large power transformer. IEEE Trans Magn 30(5):3068–3070
Faiz J, Ebrahimi M, Noori T (2008) Three and two dimensional finite-element computation of inrush current and short-circuit electromagnetic forces on windings of a three-phase core-type power transformer. IEEE Trans Magn 44(5):590–597
Feyzi MR, Sabahi M (2008) Finite element analyses of short circuit forces in power transformers with asymmetric conditions. In: Proceedings of IEEE international symposium on industrial electronics
Ho S, Li Y et al (2004) Numerical simulation of transient force and eddy current loss in a 720-MVA power transformer. IEEE Trans Magn 40(2):687–690
Kladas A, Papadopoulos M, Tegopoulos J (1994) Leakage flux and force calculation on power transformer windings under short-circuit 2D and 3D models based on the theory of images and the finite element method compared to measurements. IEEE Trans Magn 30(5):3487–3490
Ma H, Zhang D (2010) Computation of leakage flux and magnetic force in transformer by using field-circuit coupled finite element method. In: Proceedings of power and energy engineering conference (APPEEC)
Namjoshi KV, Biringer PP (1997) Efficiency of eddy current shielding of structural steel surrounding large currents: a circuit approach. IEEE Trans Magn 27(6):5417–5419
Salon S, Lamattina B, Sivasubramaniam K (2000) Comparison of assumptions in computation of short circuit forces in transformers. IEEE Trans Magn 6(5):3521–3523
Szabados B et al (2007) A new approach to determine eddy current losses in the tank walls of a power transformer. IEEE Trans Power Delivery 2(3):810–816
Wang Y, Pan J (2014) Comparison of mechanically and electrically excited vibration frequency responses of a model power transformer. IEEE Trans Power Delivery. https://doi.org/10.1109/TPWRD.2014.2383390
Wang J, Gao C, Duan X, Mao K (2015) Multi-field coupling simulation and experimental study on transformer vibration caused by DC Bias. J Electr Eng Technol 10(1):176–187
Zhang F et al (2011) Brief discussion on magnetic shielding structure of transformer. Transformer 48(2):17–20 (in Chinese)
Acknowledgements
This work is supported jointly by Natural Science Foundation of Zhejiang Provence Grant No. LQ18E050001, the Fundamental Research Funds for the Central Universities and National Natural Science Foundation of China Grant No. 11504324.
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Wang, Y., Zhang, J., Zhou, B. et al. Magnetic Shunt Design and Their Effects on Transformer Winding Electromagnetic Forces. Iran J Sci Technol Trans Electr Eng 43, 97–105 (2019). https://doi.org/10.1007/s40998-018-0074-4
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DOI: https://doi.org/10.1007/s40998-018-0074-4