Winding magnetic flux leakage and electrodynamic force calculation method based on transformer segmented model
A technology of segmented model and calculation method, applied in the fields of calculation, instrument, electrical digital data processing, etc., can solve the problems of short circuit test electrodynamic measurement difficulty, wire insulation damage, reducing transformer insulation performance, etc., to overcome the limitations of practical conditions, The effect of high practical value
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[0044] Below in conjunction with the accompanying drawings and specific embodiments, the winding flux leakage and electrodynamic calculation method based on the transformer segment model of the present invention will be further described:
[0045] A method for calculating winding flux leakage and electrodynamic force based on a transformer segmented model in this embodiment includes the following steps:
[0046] refer to figure 1 , establish a transformer finite element magnetic field model;
[0047] 1. Calculation of transformer leakage magnetic field
[0048] The transformer leakage magnetic field is calculated based on the vector magnetic potential edge finite element method. The vector magnetic potential finite element method adopts the vector magnetic potential A, ignoring the hysteresis effect and the eddy current effect, and obtains the transformer nonlinear magnetic field equation according to the Maxwell equation:
[0049] ▿ × ...
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