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

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

References

• Coskun I, Korkmaz Y. Effects of the structure of asynchronous motor winding on the performance of 3 phase motor fed by public supply. J Fac Eng Archit Gazi Univ 2007; 22(4): 927-932.
• Lashkari N, Poshtan J, Azgomi HF. Simulative and experimental investigation on stator winding turn and unbalanced supply voltage fault diagnosis in induction motors using artificial neural networks. ISA Trans 2015; 59: 334-342.
• Yahia K, Cardoso AJM, Ghoggal A, Zouzou SE. Induction motors airgap-eccentricity detection through the discrete wavelet transform of the apparent power signal under non-stationary operating conditions. ISA Trans 2014; 53: 603–611.
• Thac KN, Kowalska TO, Tarchala G. Influence of the stator winding resistance on the field-weakening operation of the drfoc induction motor drive. Bull Pol Acad Sci Tech Sci 2012; 60(4): 815-823.
• Saravanan C, Sathiswar J, Raja S. Performance of three phase induction motor using modified stator winding. Int J Comput Appl 2012; 46(1): 1-4.
• Buksnaitis J. New approach for evaluation of electromagnetic properties of three-phase windings. Electron Electr Eng 2007; 3(75): 31-36.
• Pyrhonen J, Jokinen T, Hrabovcova V. Design of Rotating Electrical Machines, Windings of Electrical Machines. John Wiley & Sons Ltd, 2008.
• Kundrotas B, Petrovas A, Rinkeviciene R, Smilgevicius A. Research of six-phase induction motor windings. Electron Electr Eng (Elektronika ir Elektrotechnika) 2014; 20(1): 15-18.
• Giet van der M, Hameyer K, Risse S. Optimization of induction motor with pole-changing winding by finite element models. In: International Compumag Society; Newsletter, 2007; pp. 1-7.
• Hadziselimovic M, Marcic T, Stumberger B, Zagradisnik I. Winding type influence on efficiency of an induction motor. Przeglad Elektrotechniczny 2011; 87(3): 61-64.
• Buksnaitis J. Investigation and comparison of three-phase and six-phase cage motor energy parameters. Electron Electr Eng (Elektronika ir Elektrotechnika) 2015; 21(3): 16-20.
• Ionescu RM, Scutaru G, Peter I, Motoasca S, Negoita A, Plesa O, Nistor C. The influence of the winding type on the noise level of two-speed three-phase induction motors. In: 13th International Conference on IEEE Optimization of Electrical and Electronic Equipment; 24-26 May 2012; Brasow, Romania. New York, NY, USA: IEEE. pp. 698-705.
• Chen JY, Chen CZ. Investigation of a new ac electrical machine winding. IEE Proc Electr Power Appl 1998; 145(2): 125-132.
• Mohanadasse K, Sharmeela C, Selvaraj DE. An innovative solution for the power quality problems in induction motor by using silica and alumina nano fillers mixed enamel for the coatings of the windings. J Electr Eng Technol 2015; 10(4): 1621-1625.
• Terzic MV, Mihic DS, Vukosavi SN. Stator design and air gap optimization of high speed drag-cup induction motor using fem. Adv Electr Comput Eng 2013; 13(3): 93-100.
• Ge B, Sun D, Wu W, Peng FZ. Winding design, modeling, and control for pole-phase modulation induction motors. IEEE Trans Magn 2013; 49(2): 898-911.
• Aguiar VPB, Pontes RST, Neto TRF. Study and energy efficiency improvement in the design of an induction motor based on interactive cad software. In: Power Electronics Conference; 27-31 October 2013; Gramado, Brazilian. New York, NY, USA: IEEE. pp. 878–883.
• Tahar BM. Influence of number parallels paths of a winding on overvoltage in the asynchronous motors fed by pwm-converters. Int J Electr Comput Energetic Electron Commun Eng 2012; 6(9): 953-956.
• Gunawan R, Yusivar F. Impact of the stator resistance of squirrel cage induction motor using direct torque control and pi controller. J Theor Appl Inf Technol 2014; 70(2): 381-390.
• Hodge CG, Eastham F, Smith AC. The harmonic analysis of machine excitation. In: The 11th International Naval Engineering Conference; 15-17 May 2012; Edinburg, Germany. pp. 1-12.
• Pienkowski K. Analysis and control of dual stator winding induction motor. Arch Electr Eng 2012; 61(3): 421-438.
• Birbir Y, Nogay HS. Harmonic variations in three-phase induction motors fed by pwm inverter with different stator coil pitches. In: Proceedings of the 6th WSEAS International Conference on Applications of Electrical Engineering; 27-29 May 2007; Istanbul, Turkey. pp. 195-199.
• Cipin R, Patocka M. Electromagnetic design of irregular three phase windings. In: 15th European Conference on Power Electronics and Applications; 2-6 September 2013; Lille, France. New York, NY, USA: IEEE. pp. 1-10.
• Zhang L, Huang Y, Dong J, Guo B, Zhou T. Stator Winding design of induction motors for high efficiency. In: 17th International Conference on Electrical Machines and Systems (ICEMS); 22-25 October 2014; Hangzhou, China. New York, NY, USA: IEEE. pp. 130-134.
• Li Y, Liu M, Lau J, Zhang B. A novel method to determine the motor efficiency under variable speed operations and partial load conditions. Appl Energy 2015; 144: 234–240.
• Korkmaz Y. Performance effect of inverter fed on the different wounded induction motors. PhD, Gazi University, Ankara, Turkey, 2005.
• Yahaya EA. Single layer winding of three phase induction motor. Int J Eng Sci 2013; 2(4): 8-13.
• Rajput RK. Basic Electrical Engineering. Laxmi Publications (P) Ltd, 2007.
• Kothari DP, Nagrath IJ. Electric Machines. Mc Graw Hill Offices, 2010.
• Boldea I, Nasar SA. The Induction Machine Handbook. Florida, USA: CRC Pres LLC, 2002.