Abstract
The paper proposes an effective time-domain modeling and simulation strategy of power transformers, using the SPICE circuit simulator. The nonlinear phenomena involved by the iron core are carefully considered, including the nonlinearity with saturation, static hysteresis and eddy currents. The principle of magnetic circuit modeling is based on analog lumped equivalent circuits and the SPICE implementation uses the principle of modularity. Such a module includes one transformer winding (either primary or secondary) and its core leg, implemented as a subcircuit with user-defined parameters. The method allows simulating normal operation modes, as well as critical transients and faulty conditions, the simulation result containing all electromagnetic quantities as time-domain functions. It is remarkable through its extremely short computation time and reasonable accuracy, it being conceived firstly as useful tool for design purposes, especially for repeated simulations required by optimization algorithms. A case study is presented to prove the feasibility, usefulness and accuracy of the proposed modeling and simulation approach, where the SPICE results are validated by experimental ones.
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Mandache, L., Topan, D., Iordache, M., Sirbu, I.G. (2013). SPICE Model for Fast Time Domain Simulation of Power Transformers, Exploiting the Ferromagnetic Hysteresis and Eddy-Currents. In: Kyamakya, K., Halang, W., Mathis, W., Chedjou, J., Li, Z. (eds) Selected Topics in Nonlinear Dynamics and Theoretical Electrical Engineering. Studies in Computational Intelligence, vol 459. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34560-9_15
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DOI: https://doi.org/10.1007/978-3-642-34560-9_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-34559-3
Online ISBN: 978-3-642-34560-9
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