한국생산제조학회 학술지 영문 홈페이지

Current Issue

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31 , No. 5

[ Technical Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 4, pp. 271-278
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Aug 2022
Received 05 Apr 2022 Revised 24 Jun 2022 Accepted 07 Jul 2022
DOI: https://doi.org/10.7735/ksmte.2022.31.4.271

IE4급 7.5 kW 유도전동기 조립 공차 개선 및 성능 평가
고명진a ; 이성호a ; 박순섭a, *

IE4-class 7.5-kW Induction Motor Assembly Tolerance Improvement and Performance Evaluation
Myeong Jin Koa ; Sung-Ho Leea ; Soon Sub Parka, *
aSeonam Division, Korea Institute of Industrial Technology
Correspondence to : *Tel.: +82-62-600-6250 E-mail address: pss4633@kitech.re.kr (Soon Sub Park).

Funding Information ▼

Abstract

In this study, we compared the industrial induction motors sold by leading international companies and developed a 7.5 kW super premium (IE4) class 4-pole three-phase induction motor, the prototype for which was designed and produced herein. We designed and fabricated a stator, an Al/Cu rotor, housing, bearing front and rear covers made of Al 6061, a shaft, and a cooling fan. The cooling fan produced with 3D printing technology was assembled on the unload shaft. Following motor assembly, its mechanical performance such as noise, vibration, wind speed, and efficiency were analyzed. Compared with the considered international-standard motors, our proposed motor exhibited superior performance in terms of noise, balancing, and efficiency. In this paper, IE4-class efficiency was achieved with Al and Cu die-casting rotors. In the future, we plan to achieve IE5-class efficiency with Cu die-casting and develop Al/Cu hybrid rotor fabrication technology.


Keywords: Induction motor, Vibration, Noise, Cu rotor, Al rotor

Acknowledgments

이 논문은 한국에너지기술평가원으로부터 재정지원을 받아 수행된 연구임을 밝히며, 이에 관계자 여러분께 감사드립니다(“차세대고효율(IE4) 전동기 오픈플랫폼 구축 및 운영” No. 20192010106780).


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Myeong Jin Ko

Junior Researcher in the Automotive Materials & Components R&D Group, Korea Institute of Industrial Technology (KITECH). He is currently working on ultra-precision grinding machining and hot press molding techniques.

E-mail: mjko@kitech.re.kr

Sung-Ho Lee

Principal Researcher in the Automotive Materials & Components R&D Group, Korea Institute of Industrial Technology (KITECH). His research interests include the design and analysis of electro-magnetic energy conversion machines and high efficiency electric motors.

E-mail: shlee07@kitech.re.kr

Soon Sub Park

Principal Researcher in the Automotive Materials & Components R&D Group, Korea Institute of Industrial Technology (KITECH). He is currently working on ultra-precision machining, ultra-precision measurement and hot press molding techniques.

E-mail: pss4633@kitech.re.kr