Calculation of Maximum Short Circuit Electromagnetic Forces in the IPB Using Time Stepping Finite Element Method

• Autorzy: Isfahani A. , Vaez-Zadeh S. , Khodabakhsh A.

Warianty tytułu

PL

Obliczenia maksymalnej elektromagnetycznej siły zwarciowej w szynoprzewodzie z izolowanymi fazami przy wykorzystaniu metody elementów skończonych

• Języki publikacji: EN

Abstrakty

EN

Calculation of maximum short circuit electromagnetic forces is one of the most important factors in the mechanical design and optimization of isolated phase buses which is required by the manufacturing companies. In this paper, these forces as well as associated eddy currents and magnetic fields are calculated using finite element method. A software program is developed to find the worst conditions at which a maximum short circuit electromagnetic force occurs. It is shown that the maximum force strongly depends on the initial phase current angle at the instance the short circuit occurs. Two common enclosure material i.e. aluminum and steel are also compared regarding short circuit forces.

PL

Maksymalne siły elektromagnetyczne zwarciowe to jeden z najważniejszych parametrów mechanicznych przy projektowaniu i optymalizacji izolowanych szynoprzewodów z izolowanymi fazami. W artykule obliczono te siły metodą elementu skończonego przy uwzględnieniu prądów wirowych i i pola magnetycznego. Oprogramowanie obliczeniowe udoskonalono aby można było znaleźć krytyczne warunki występujące w stanach zwarcia. Wykazano że maksymalna siła zależy od początkowej fazy prądu w momencie zwarcia. Dwa typowe materiały osłony - aluminium i stal zostały porównane.

Słowa kluczowe

EN

bus; electromagnetic force; magnetic field; short circuit; finite element method

PL

szynoprzewód; siła elektromagnetyczna; pole magnetyczne; metoda elementów skończonych

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2009
• Tom: R. 85, nr 7
• Strony: 31--35
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., schem.

Twórcy

autor

Isfahani A.

autor

Vaez-Zadeh S.

autor

Khodabakhsh A.

• School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran,

Bibliografia

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