a transformer with saturable two-port core
نویسندگان
چکیده
the behaviour of power transformers is very like to ideal ones. their characteristic matrices can not be determined directly, because the elements of the characteristic matrices are either close to infinity or zero. on the other hand, strong coupling between two transformer windings causes the determinant of these matrices to become zero. therefore, conversion of these matrices to each other will decrease the precision of results. in this paper, we define three new parameters, d, zo.c.(open - circuit impedance) and zs.c. (short-circuit impedance). using these parameters; we develop a new method for determination of the characteristic matrices of such transformers, and we show that this method does not lead to a major decrease in the precision of results. all characteristic matrices are obtained by this method and some equivalent circuits for such transformers have been proposed.
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عنوان ژورنال:
نشریه دانشکده فنیجلد ۵۶، شماره ۱۱، صفحات ۰-۰
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