|Table of Contents|

 Speedy modeling method for single-phase flux switching motor(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2014年07
Page:
6-11
Research Field:
Publishing date:

Info

Title:
 Speedy modeling method for single-phase flux switching motor
Author(s):
 ZHANG Zong-sheng WANG Xiu-he YANG Yu-bo ZHANG Ran
 1. School of Electrical Engineering,Shandong University,Jinan 250061,China;
2. Technology Inspection Center of Shengli Oil Field,SINOPEC,Dongying 257000,China
Keywords:
 flux switched motors magnetic circuit analysis air gap magnetic permeability nonlinear inductance
dynamic analysis
PACS:
-
DOI:
-
Abstract:
 In order to describe the dynamic characteristics of single-phase flux switching motor( flux switching
motor,FSM) quickly and effectively,a method of establishing the nonlinear inductance model of the
motor was presented. The mathematical expression of the air gap magnetic permeability between one pair
of stator and rotor poles was deduced by the magnetic circuit analysis method,and the variable of the expression
is the rotor position. On the basis of the air gap magnetic permeability expression and the singlephase
FSM’s working principle,the nonlinear inductance model of the motor was established; whose variable
is also the rotor position. The comparisons of back EMF waveform between prototype testing and
model computation show that the method suggested can be applied to establish the nonlinear inductance
model of single-phase FSM. The model is very accurate while the current is small. The leakage magnetic
field becomes obvious as the current increases. The leakage magnetic field is the cause of the deviation
between experimental and calculated values on the rising and falling edge of the back EMF waveform. Because
of the working principle of the single-phase FSM,the deviation doesn’t impair the accuracy of the
dynamic analysis.

References:

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Last Update: 2014-11-26