Optimal design of premium efficiency cage induction motors (IE3 Level) with non-skewed asymmetrical rotor bars based on FEA

H. Zhao, S. Wang, D. Zhang, X. Liu

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

To weaken the additional torque and noise caused by slot harmonics field, squirrel cage asynchronous motor with skewed rotor bars are widely used in small and medium cage induction motors. However, with skewed rotor, the distribution of the fundamental fields along the axial direction is non-uniformly, which may cause greater core saturation and higher iron losses [1]. Furthermore, the inter-bar or the transverse currents are also produced by non-insulation between the rotor bars and lamination steels, which also lead to the excess loss significantly [2-4], especially for the small and medium motors. Therefore, it is necessary to eliminate the influence of the skewed rotors on the motor losses. In this aspect, a design method of non-skewed rotor bars for cage induction motors is presented [5], in which the asymmetrical straight rotor bars is adopted to weaken the slot harmonic field, at the same time, the excess loss caused by transverse currents can also be avoided. Therefore, it is helpful to design the small and medium size induction motors with premium efficiency (IE3 level). But the problem is how to design the parameters of the asymmetrical degree, air-gap length, slot combination and closed slot comprehensively.

本文言語English
ホスト出版物のタイトル2015 IEEE International Magnetics Conference, INTERMAG 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781479973224
DOI
出版ステータスPublished - 2015 7月 14
外部発表はい
イベント2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
継続期間: 2015 5月 112015 5月 15

出版物シリーズ

名前2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
国/地域China
CityBeijing
Period15/5/1115/5/15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学
  • 表面、皮膜および薄膜

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