Investigations on a Super High Speed Motor-Generator for Microturbine Applications Using Amorphous Core

Author

Do-Kwan Hong ; Daesuk Joo ; Byung-Chul Woo ; Yeon-Ho Jeong ; Dae-hyun Koo

Author_Institution

Electr. Motor Res. Center, Korea Electrotechnol. Res. Inst., Changwon, South Korea

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

4072

Lastpage

4075

Abstract

The research institute is developing a motor-generator that fits into a microturbine generator (MTG) system with a power density of 500 W. This paper introduces the design, analysis, production and assessment of the heart of an MTG system, the motor-generator, whereby an amorphous core is applied creatively to a stator core. The motor-generator is designed and analyzed with consideration to losses and the circuit by magnetic analysis. The centrifugal force analysis is performed for the static stability, and rotor dynamics and unbalance analysis are performed for dynamic stability at high speed. CFD results are compared with the experiment, and are within a 3.2% deviation. Based on these results, a high-speed motor-generator is successfully developed.

Keywords

computational fluid dynamics; electric motors; rotors; stators; turbogenerators; CFD; MTG system; amorphous core; centrifugal force analysis; dynamic stability; magnetic analysis; microturbine application; microturbine generator system; power density; rotor dynamics; static stability; stator core; super-high-speed motor-generator design; unbalance analysis; Computational fluid dynamics; Dynamics; Generators; Magnetic cores; Rotors; Stator cores; Stress; Amorphous core; analysis of means (ANOM); computational fluid dynamics (CFD); critical speed analysis; magnetic analysis considering voltage compensation; structural analysis; unbalance response analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2239276

Filename

6558906