Abstract
The chapter compares several results of laboratory tests of induction motor rotors with different squirrel-cage characteristics, like skewed bars and the use of a middle ring. It is intended to make comparisons between rotors that do not use any of these characteristics and rotors that use only one or both of them. The comparisons are based on laboratory tests, namely: performance test in steady state, torque-speed curve, and noise test at rated load. The results show that either skewed bars or middle ring has a relevant impact on the overall performance of the motor. Therefore, depending on the application of the motor, the adoption of one or both the characteristics can help the motor to meet the performance requirements.
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S.Nau, The influence of the skewed rotor slots on the magnetic noise of three-phase induction motors. Eighth International Conference on Electrical Machines and Drives, 1997
Z. Ferkova, V. Kindl, Influence of skewed squirrel cage rotor with intermediate ring on magnetic field of air gap in induction machine. Elektronika ir Elektrotechnika 1, 23 (2017)
L. Wang, X. Bao, C. Di, Y. Zhou, Influence on vibration and noise of squirrel-cage induction machine with double skewed rotor for different slot combinations. IEEE Trans. Magn. 52(7), 1–4 (2016)
L. Wang, X. Bao, C. Di, Y. Zhou, Q. Lu, Analysis of synchronous parasitic torque in dual skew cage rotor induction motors with equivalent slot number. IET Electr. Power Appl. 11(8), 1357–1365 (2017)
S. Williamson, C. McClay, The effect of axial variations in saturation due to skew on induction motor equivalent-circuit parameters. IEEE Trans. Ind. Appl. 35(6), 1323–1331 (1999)
X. Bao, J. Fang, C. Di, S. Xu, A novel computational method of skewing leakage reactance for doubly skewed rotor induction motor. IEEE Trans. Energy Convers., 1–1 (2018)
D. Dorrell, T. Miller, C. Rasmussen, Inter-bar currents in induction machines. IEEE Trans. Ind. Appl. 39(3), 677–684 (2003)
S. Williamson, L. Lim, M. Robinson, Finite-element models for cage induction motor analysis. IEEE Trans. Ind. Appl. 26(6), 1007–1017 (1990)
K. Yamada, Y. Takahashi, K. Fujiwara, Simplified 3-D modeling for skewed rotor slots with end-ring of cage induction motors. IEEE Trans. Magn. 52(3), 1–4 (2016)
W. Xu, X. Bao, C. Di, L. Wang, Y. Chen, Optimal angle combination for improving electromagnetic torque in induction motor with double-skewed rotor. IEEE Trans. Magn. 53(11), 1–5 (2017)
D. Strbac, R. Gottkehaskamp, Improvement of the operating behavior of small induction motors by finding an optimal rotor skewing angle and a harmonic distribution of the number. IKMT 2015; 10. ETG/GMM-Symposium Innovative small Drives and Micro-Motor Systems, 2015, pp. 1–7
H.D. Gersem, K. Hameyer, T. Weiland, Skew interface conditions in 2-D finite-element machine models. IEEE Trans. Magn. 39(3), 1452–1455 (2003)
S. Williamson, C. Mcclay, The variation of cage motor losses with skew. IEEE Trans. Ind. Appl. 36(6), 1563–1570 (2000)
A.M. Odok, Stray-load losses and stray torques in induction machines. Trans. Am. Inst. Electr. Eng. Part III Power Appar Syst 77(3), 43–53 (1958)
IEC Rotating electrical machines – Part1: Rating and performance, IEC Standard 60034-1, 2017
IEEETest Procedure for Polyphase Induction Motors and Generators, IEEE Standard 112, 2017
Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane, ISO International Standard 3744, 2010
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da Silva, M.D., Schmitz, D., de Araújo Sá, C.M., Baptista, B., Nau, S.L. (2021). Comparison Between the Use of the Middle Ring and/or Skewed Bars in Induction Motor Rotor. In: Bertoldi, P. (eds) Energy Efficiency in Motor Systems. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-030-69799-0_19
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DOI: https://doi.org/10.1007/978-3-030-69799-0_19
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