3D Finite Element Estimation of Stray Losses in Three-Phase Transformers

• Autorzy: Venegas Vega M. A. , Escarela Perez R. , Niewierowicz T.
• Języki publikacji: EN

Abstrakty

EN

Stray losses and flux leakages of a three-phase three-limb transformer are determined and analyzed using 3D finite element analysis. The problem is not current driven but voltage fed. Thus, a circuit-field problem is established and solved. The operating condition analyzed is the load-loss test. Since low excitation voltages are excited during this test, the transformer works under unsaturated conditions. As a result, the transformer is modelled using a time-harmonic approach. The transformer geometry is truly three dimensional, forbidding the use of conventional 2D models. The clamp plates and transformer tank are conveniently modelled with surface impedance boundary conditions.

Słowa kluczowe

EN

stray losses; finite element method

PL

straty obciążeniowe; metoda elementów skończonych

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Journal of Applied Computer Science
• Rocznik: 2008
• Tom: Vol. 16, nr 1
• Strony: 89--100
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Venegas Vega M. A.

autor

Escarela Perez R.

autor

Niewierowicz T.

• Arteche Transformadores y Tecnologia Ant. Carr. Mexico-Queretaro km 73.5 Tepeji, Hidalgo, Mexico,

Bibliografia

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• [7] Binns K.J., Lawrenson P.J., Trowbridge C.W.: The Analitycal and Numerical Solution of Electric and Magnetic Fields, John Wiley and Sons, 1992.
• [8] MEGA V6.27: USER’S MANUAL, Applied Electromagnetic Research Centre, Bath University, UK, 2000.
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