Co-Simulation by Indirect Coupling of a Brushless Single-Phase Synchronous Generator

2020 ◽  
Author(s):  
C. G. C. Neves ◽  
A. F. F. Filho ◽  
F. A. Farret ◽  
M. G. Simões
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fourier Transform ◽  
Single Phase ◽  
Magnetic Circuit ◽  
Harmonic Distortion ◽  
Synchronous Generator ◽  
Electrical Circuit ◽  
Indirect Coupling ◽  
Terminal Voltage

This paper describes and simulates the transient process of self-excitation of a single-phase brushless capacitor-exciter synchronous generator (BCESG) by Finite Element Method (FEM). To simul the BCESG the coupling between the magnetic circuit and the electrical circuit the Method of Co-Simulation by Indirect Coupling is applied. The Total Harmonic Distortion of the terminal voltage is calculated and the main harmonics identified by Fast Fourier Transform (FFT).

scholarly journals Magnetic Circuit Design and Magnetic Field Finite Element Analysis of Converging Stepped Magnetofluid Seal with Small Clearance

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Xiaolong Yang ◽  
Guohong Wang ◽  
Ruibo Zhang
Keyword(s):  
Magnetic Field ◽  
Finite Element Method ◽  
Finite Element ◽  
Circuit Design ◽  
Magnetic Circuit ◽  
Element Analysis ◽  
Small Clearance ◽  
Calculation Results ◽  
Theoretical Pressure ◽  
Element Method

The stepped magnetofluid seal is an effective method for improving the pressure ability of ordinary magnetofluid seals (OMS) with large clearance. At present, the research on stepped magnetofluid seal with less than 0.4 mm small clearance has not been carried out yet. The equivalent magnetic circuit design of converging stepped magnetofluid seal (CSMS) with small clearance has been carried out and verified by magnetic field finite element method based on the CSMS theory and magnetic circuit theory. The effects of the width of the axial seal position, the height of the radial seal position, the number of the pole tooth in the axial seal position, and the number of the pole tooth in the radial seal position on the theoretical pressure ability of the CSMS are investigated by numerical simulation. The calculation results are analyzed and discussed. The results show that the magnetic flux leakage at the junction of the permanent magnet and pole piece causes the higher pressure ability of the CSMS structure designed by the equivalent magnetic circuit method than that calculated by the magnetic field finite element method. When the width of the axial seal position is greater than the height of the radial seal position and the number of pole teeth in the axial seal position is less than the number of pole teeth in the radial seal position, the CSMS has the best effect. Compared with OMS with small clearance, CSMS has greater advantages.

3-D modeling of thin wire and thin plate using finite element method and electrical circuit equation

2001 ◽  
Vol 37 (5) ◽  
pp. 3238-3241 ◽  
Author(s):  
A. Abakar ◽  
J.L. Coulomb ◽  
G. Meunier ◽  
F.-X. Zgainski ◽  
C. Guerin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Thin Plate ◽  
Electrical Circuit ◽  
Thin Wire ◽  
Element Method

FEM-Based Lifting Permanent Magnetic Chuck Design

2013 ◽  
Vol 655-657 ◽  
pp. 355-358 ◽  
Author(s):  
Ning Ding ◽  
Yu Mei Song ◽  
Lina Wang ◽  
Ding Tong Zhang ◽  
Li Gong Ding
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Circuit Design ◽  
Magnetic Circuit ◽  
Saving Energy ◽  
Driving System ◽  
Working Principle ◽  
Optimal Saving ◽  
Element Method

The optimal saving energy permanent magnet lifting chuck has been designed. Working principle of this technology is introduced. Magnetic circuit design is carried out by finite element method (FEM). At the same time, a perfect self-acting driving system has been invented for picking and releasing loads fast and conveniently without using any electricity at all. Industry prototype was manufactured, and it verified that the proposed lifting permanent magnetic chuck was feasible.

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