Increasing the energy-efficiency of induction machines by the use of grain oriented magnetic materials and die-casting copper squirrel cage in the rotor

This paper deals with the results of an experimental induction machine with a new magnetic structure applied on die casting copper rotor, which is based on a non segmented lamination with grain oriented electrical steel sheets in order to reduce core losses and increase the interbar resistance thanks to the glass film. The same stator is used in order to change only the rotors.

[1]  Jean-Francois Brudny,et al.  Non-Segmented Grain Oriented Steel in Induction Machines , 2014 .

[2]  B. Cassoret,et al.  Grain Oriented Steel Assembly Characterization for the Development of High Efficiency AC Rotating Electrical Machines , 2009, IEEE Transactions on Magnetics.

[3]  L. Ferraris,et al.  No tooling cost process for induction motors energy efficiency improvements , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[4]  Judith Apsley,et al.  Reduced Losses in Die-Cast Machines With Insulated Rotors , 2010, IEEE Transactions on Industry Applications.

[5]  Alexander Stening,et al.  Analysis and Reduction of Parasitic Effects in Induction Motors With Die-Cast Rotors , 2013 .

[6]  Stephen P. Midson,et al.  Die-Cast Copper Motor Rotors: Die Materials and Process Considerations for Economical Copper Rotor Production , 2003 .

[7]  M. Villani,et al.  Design of High Efficiency Induction Motors with Die-Casting Copper Rotors , 2003 .

[8]  G. Parent,et al.  Analysis of the Magnetic Flux Distribution in a New Shifted Non-Segmented Grain Oriented AC Motor Magnetic Circuit , 2013, IEEE Transactions on Magnetics.

[9]  M. Villani,et al.  Design of a Permanent Magnet Synchronous Motor with Grain Oriented electrical steel for Direct-drive elevators , 2012, 2012 XXth International Conference on Electrical Machines.

[10]  S. Ashok,et al.  Design optimization of 15 kW, 2-pole induction motor to achieve IE4 efficiency level with copper die-casting , 2015, 2015 International Conference on Technological Advancements in Power and Energy (TAP Energy).

[11]  Christophe Paris,et al.  A New Technology to Make Rotors with Copper as Magnetic Conductor , 2003 .

[12]  Y. Houbaert,et al.  Simulation of the HAZ and magnetic properties of laser cut non-oriented electrical steels , 2002 .

[13]  R. Kaczmarek,et al.  Effect of annealing temperature and heating rate on the magnetic and mechanical properties of electrical steel , 1996 .

[14]  K. Akatsu,et al.  Characteristics of a Switched Reluctance Motor using Grain-Oriented electric steel sheet , 2013, 2013 IEEE ECCE Asia Downunder.

[15]  U. Herr,et al.  Investigation of the influence of different cutting procedures on the global and local magnetic properties of non-oriented electrical steel , 2015 .

[16]  Andreas Kailer,et al.  Thermal and corrosion properties of silicon nitride for copper die casting components , 2013 .

[17]  E. Brush,et al.  Porosity Control in Copper Rotor Die Castings , 2003 .

[18]  Renato Carlson,et al.  Rotor cage of single-phase induction motors - process analysis , 2009, 2009 IEEE International Electric Machines and Drives Conference.

[19]  Jean-François Brudny,et al.  Increasing the Energy Efficiency of Induction Machines by the Use of Grain-Oriented Magnetic Materials and Die Casting Copper Squirrel Cage in the Rotor , 2017, IEEE Transactions on Industry Applications.

[20]  Andrea Cavagnino,et al.  Core axial lengthening as effective solution to improve the induction motor efficiency classes , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[21]  Gholamhossein Shirkoohi,et al.  Anisotropic properties of high permeability grain-oriented 3.25% Si-Fe electrical steel , 1994 .

[22]  Andrea Cavagnino,et al.  International standards for the induction motor efficiency evaluation: a critical analysis of the stray-load loss determination , 2003 .

[23]  Y. Houbaert,et al.  Effect of the rapid heating on the magnetic properties of non-oriented electrical steels , 2002 .

[24]  Dale T. Peters,et al.  Die Casting Copper Motor Rotors: Mold Materials and Processing for Cost-Effective Manufacturing , 2000 .

[25]  F. Breabăn,et al.  Effect of laser cutting on microstructure and on magnetic properties of grain non-oriented electrical steels , 2003 .

[26]  Andrea Cavagnino,et al.  The incremental design efficiency improvement of commercially manufactured induction motors , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[27]  C. N. Glew.  Stray load losses in induction motors; a challenge to academia , 1997 .

[28]  J.G. Cowie,et al.  Die-cast copper rotors for improved motor performance , 2003, Conference Record of the 2003 Annual Pulp and Paper Industry Technical Conference, 2003..

[29]  Satoshi Kikuchi,et al.  High-Frequency Interbar Current Losses in Cage Induction Motors Under No-Load Condition , 2014, IEEE Transactions on Energy Conversion.

[30]  J.L. Kirtley,et al.  Improving Induction Motor Efficiency with Die-cast Copper Rotor Cages , 2007, 2007 IEEE Power Engineering Society General Meeting.