Abstract
The present paper deals with a new approach for the study of the steady-state and transient behavior of three-phase transformers. This approach based on magnetic equivalent circuit-diagrams, takes into account the nonlinear B-H curve as well as zero-sequence flux. The nonlinear B-H curve is represented by a Fourier series, based on a set of measurement data. For the numerical simulations, two methods have been developed, by considering the total magnetic flux respectively the currents as state variables. Numerical results compared with test results and with FEM computations confirm the validity of the proposed approach.
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References
L. Guanghao, Xu Xiao-Bang, Improved modeling of the nonlinear B-H curve and its application in power cable analysis, IEEE Trans. Magn., Vol. 38, No. 4, pp. 1759–1763, 2002.
J.-J. Simond, A. Sapin, B. Kawkabani, D. Schafer, M. Tu Xuan, B. Willy, “Optimized Design of Variable-Speed Drives and Electrical Networks”, 7th European Conference on Power Electronics and Applications EPE’97, Trondheim, Norway, September 1997.
FLUX2D, version 7.60/6b, CEDRAT.
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Kawkabani, B., Simond, JJ. (2006). IMPROVED MODELING OF THREE-PHASE TRANSFORMER ANALYSIS BASED ON NONLINEAR B-H CURVE AND TAKING INTO ACCOUNT ZERO-SEQUENCE FLUX. In: Wiak, S., Dems, M., Komęza, K. (eds) Recent Developments of Electrical Drives. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-4535-6_38
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DOI: https://doi.org/10.1007/978-1-4020-4535-6_38
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-4534-9
Online ISBN: 978-1-4020-4535-6
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