NDLI: Shielded axially slitted solid rotor design for high-speed solid rotor induction motors

Content Provider	IET Digital Library
Author	Gulbahce, Mehmet Onur Mcguiness, Daniel Tunc Kocabas, Derya Ahmet
Abstract	With its simple construction, excellent mechanical and thermal capabilities to withstand stress, solid rotor induction motors (SRIMs) have become widely used in the areas of high-speed and high-pressure application fields. In this study, a novel solid rotor structure with slits in axial directions, of which the top of the rotor iron teeth is coated with copper, is presented. The design of the novel construction is discussed in detail and all rotor geometrical design parameters are optimised. The performance of the novel rotor design is compared with that of equivalent axial-slit and copper-coated solid rotors. To determine the performances, the systems were simulated by two-dimensional time stepping finite-element analysis. In the novel structure, the fundamental flux can penetrate much deeper than that of a smooth-type induction motor because of the presence of slits. In addition, because of the existence of coating on the top of the teeth, the rotor creates decreased torque ripple resulting in less vibration. The novel rotor design provides a better efficiency with less rotor loss together with a disadvantage of decreased power factor.
Starting Page	1371
Ending Page	1377
Page Count	7
ISSN	17518660
Volume Number	12
e-ISSN	17518679
Issue Number	Issue 9, Nov (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/12/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2018.5210
Journal	IET Electric Power Applications
Publisher Date	2018-07-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	2D Time Stepping Finite-element Analysis Asynchronous Machine Axial Directions Copper-coated Solid Rotors Equivalent Axial-slit Excellent Mechanical Capabilities Finite Element Analysis High-pressure Application Field High-speed Solid Rotor Induction Motors Induction Motors Magnetic Flux Power Factor Rotor Geometrical Design Parameter Rotor Iron Teeth Rotor Loss Rotors Shielded Axially Slitted Solid Rotor Design Simple Construction Slits Smooth-type Induction Motor Solid Rotor Structure Thermal Capabilities Torque
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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