|Table of Contents|

 Research on the equivalent magnetic circuit model of
permanent magnet contactor
(PDF)

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

Issue:
2014年06
Page:
85-89
Research Field:
Publishing date:

Info

Title:
 Research on the equivalent magnetic circuit model of
permanent magnet contactor
Author(s):
 XUE Yu-qiang WU Jin-long
 School of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350116,China
Keywords:
 contactor permanent magnet partitioned equivalent magnetic flux magnetic circuit model
PACS:
-
DOI:
-
Abstract:
 Since the magnetic flux in the PM is unevenly distributed and the internal working point of PM
is different when providing forward and backward exciting currents to the coil of PM contactor,an equivalent
method was proposed that partitioning the PM along the magnetization direction based on different
magnetic flux density of the cross section of magnetic circuit of the PM. A monostable PM contactor with
single coil was used as an example. Its magnetic flux density under different exciting current conditions
was analyzed by building an equivalent magnetic circuit model of the contactor. Comparing the calculated
value with measured value of attractive force of movable core under different working circumstances,the
result demonstrates that the calculation error of the calculated value of attractive force is less than 10%,
which shows the correctness and validity of the method of building an equivalent magnetic circuit model
by partitioning the PM.

References:

Memo

Memo:
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Last Update: 2014-11-30