Title :
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
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;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7014037
