Squirrel Cage Induction Motor Design and the Effect of Specific Magnetic and Electrical Loading Coefficient

Yıl 2019, Cilt: 7 Sayı: 1, 1 - 8, 31.03.2019

Asım Gökhan Yetgin , Mustafa Turan , Barış Cevher , Ali İhsan Çanakoğlu , Ayhan Gün

https://doi.org/10.18100/ijamec.461795

Cited By: 10

Öz

3-phase induction motors are widely used in
industrial applications such as pumps, blowers, compressors, conveyors, etc. In
addition, single-phase motors also have domestic use.  For this reason, the design of the induction
motor is of great importance. During the design, according to the parameters
given as input, there are many situations that are contradictory to each other
in order to achieve the goal. For example, if high efficiency is required, the
motor size and the price will increase, and if lower price is required, other
performance characteristics should be ignored. In the practical design of an
induction motor, the designer has to comply with a number of constraints
because of the large number of input variables. For this reason manual calculation
becomes a very long and difficult process. To overcome this tiresome process,
it is necessary to create a computer aided program or simulation model to
determine the induction motor design parameters. In induction motor design, many parameters
directly affect motor performance. Therefore, the selection of these parameters
is of great importance. The
C₀ coefficient, which
takes place in the first steps of the design process, also has a great
influence on the motor design. In this paper,
a program for optimizing design of 3-phase induction motors written in MATLAB
is presented. The structure of the program is modular and therefore can be
modified for the various requirements of the induction motor design. C₀ constant (output
coefficient), one of the design parameters, also varies with some other
parameters. The most important ones are the specific electrical loading
coefficient (A₁) and the
specific magnetic loading coefficient (B_av),
making dramatic effect on the output coefficient. The effect of the variation
of the C₀ constant on the
performance of the induction motor was investigated in the study. Stator inner
and outer diameter, stack length, stator and rotor slot parameters, equivalent
circuit parameters, losses and efficiency was obtained according to the change
of B_av and A₁ values. The obtained
results are given and interpreted in tables and graphs.

Anahtar Kelimeler

Electrical loading coefficient, Induction motor design, Magnetic loading coefficient, Output coefficient, Performance analysis.

Kaynakça

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