EXPERIMENTAL AND ANALYTICAL INVESTIGATION ON STATOR WINDING TURN INFLUENCE IN SQUIRREL CAGE INDUCTION MOTOR PERFORMANCE: ENERGY EFFICIENCY

Year 2018, Volume: 19 Issue: 2, 267 - 277, 31.03.2018

Asım Gökhan Yetgin , Murat İmre

https://doi.org/10.18038/aubtda.325989

Cited By: 1

Abstract

In the designing steps of the
induction machines, reducing the power consumption level of the induction
machine is a very important issue. Winding topology is one of the most
important design parameters for induction machines. Variation of the number of
turns in the slots has a significant effect on the performance of the machine.
In this study, unlike the studies in the literature, only the number of turns
are changed (all other motor parameters are constant) and analyses are
performed. 6 different induction machines which have 6 different winding
topologies are designed. 3 of the machines are designed half coiled and the
other 3 machine are designed whole coiled. Both winding topologies have
different turn numbers for a single slot. The turn numbers are 96, 106 and 116
respectively. No-load, locked rotor, and load tests are conducted on these
machines. According to the test results and analytical results, performances of
the machines are considered. In this way, increasing the turn number for both
winding topologies has a decreasing effect on the iron losses of the motor.
Similarly, increasing of the stator and rotor resistances directly affects the
copper losses of the machine negatively. When considering the efficiencies of
the machines, maximum efficiency is achieved for half coiled 116 turns numbered
topology. Similarly, maximum efficiency is achieved for whole coiled 106 turns
numbered topology.

Keywords

Half coil winding, whole coil winding, number of winding, induction motor, energy efficiency

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