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Shaded-pole flat linear induction motor
Author(s)
Manchen, Manfred Ludwig
Date Issued
1990
Type
Thesis
Publisher
Cape Technikon
Abstract
Linear induction motors are built for numerous
applications. Their robustness, gearfree-link to the
load and the fact that speed is not a function of the
number of poles (as in round machines) are only a few
advantages. As every single phase motor needs some
starting aid, so does a linear induction drive. For
round machines, capacitors or shaded poles are usually
used. A capacitor can be damaged electrically, which is
a rare occurrence for shading rings. A useful
combination of these advantages is a linear induction
motor which is gearless and uses the shaded pole
principle as a starting aid.
In order to simplify the designing process, a computer
program (Fortran) was written. The main objective on
the electrical side was to obtain low input power, high
power factor and high efficiency.
In order to find the performance curves, torque
measurements were made. Although the principles of
torque measurements are well known the device to measure
torque for this machine was not available and had to be
constructed.
applications. Their robustness, gearfree-link to the
load and the fact that speed is not a function of the
number of poles (as in round machines) are only a few
advantages. As every single phase motor needs some
starting aid, so does a linear induction drive. For
round machines, capacitors or shaded poles are usually
used. A capacitor can be damaged electrically, which is
a rare occurrence for shading rings. A useful
combination of these advantages is a linear induction
motor which is gearless and uses the shaded pole
principle as a starting aid.
In order to simplify the designing process, a computer
program (Fortran) was written. The main objective on
the electrical side was to obtain low input power, high
power factor and high efficiency.
In order to find the performance curves, torque
measurements were made. Although the principles of
torque measurements are well known the device to measure
torque for this machine was not available and had to be
constructed.
Additional information
Thesis (Masters Diploma (Heavy Current)) -- Cape Technikon, 1991
Subjects
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Shaded-pole flat linear induction motor.pdf
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1.3 MB
Format
Adobe PDF
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