Remanufacturing of low-efficiency induction machines with interior permanent-magnet rotors for energy efficiency improvement

Author

Ronggang Ni ; Li Ding ; Xianguo Gui ; Gaolin Wang ; Guoqiang Zhang ; Dianguo Xu

Author_Institution

Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol., Harbin, China

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

3161

Lastpage

3165

Abstract

Low-efficiency induction machines (IMs) are still dominating the electric drive systems nowadays. This paper presents a methodology of improving the energy efficiency by remanufacturing low-efficiency induction machines with interior permanent-magnet (IPM) rotors so that to achieve super-premium (IE4) efficiency with short payback period. Two remanufactured IPM machines with single and double layer magnets are designed with the help of finite element analysis (FEA) respectively, and experimental results are provided for verification.

Keywords

asynchronous machines; energy conservation; finite element analysis; permanent magnet machines; recycling; rotors; FEA; IE4 efficiency; IM remanufacturing; IPM rotors; double layer magnets; electric drive systems; energy efficiency improvement; finite element analysis; interior permanent-magnet rotors; low-efficiency induction machines; payback period; super-premium efficiency; Copper; Harmonic analysis; IEC standards; Induction motors; Rotors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7014037

Filename

7014037