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Rezlization of Application Software about Point Dispersed Method Solving Electromagnetic Boundary Value Problem

Author: GuoFan
Tutor: LingYueSheng
School: Hebei University of Technology
Course: Motor and electrical
Keywords: Electromagnetic Fields Transformer Leakage magnetic field Leakage reactance Interpolation function Boundary value problem
CLC: TP399
Type: Master's thesis
Year: 2000
Downloads: 102
Quote: 1
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Electromagnetic field numerical calculation in a direct interpolation function point discrete method for solving electromagnetic field problems , and take advantage of this method is the preparation of a the solving power transformer leakage magnetic field and leakage reactance calculation software . Direct interpolation function method is meshless numerical method , compared with the finite element method , the former process is relatively easy and flexible ; relative to the other point discrete method , it is better to handle different media at the junction point of solving the region and the second relationship class boundary point , so it has good application prospects . The main discussion point discrete method for solving boundary in the two - dimensional case . Based on the mathematical model of the transformer leakage magnetic field , using the the direct interpolation function method to write Windows - based electromagnetic field calculation software . Doubly linked list data structure used in the program to deal with discrete points , the coefficient matrix with non-zero elements of a one-dimensional compression storage technology to reduce the amount of storage and computation , to further enhance the understanding by the node in the adjustment and optimization measures such as encryption of discrete points precision . The program uses multi-threading technology for time-consuming data processing , so that in a long time calculation program is still able to respond to user commands , the entire software using Visual C language prepared with a friendly user interface and interactive , easy to operate , is a more good leakage magnetic field calculation software . Finally , the calculation of the leakage magnetic field SFPT 240000/220 transformer leakage reactance draw a discrete map and leakage magnetic field maps , calculate results good agreement with the measured values ??, and justify the use of the the direct interpolation function method for solving electromagnetic field problems are valid 's .

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