Experimental study on stray load loss during high-speed constant-voltage operation of squirrel-cage induction motors - the influence of gap length on 4- and 8-pole induction motors -

Author

Hirotsuka, Isao ; Tsuboi, Kazuo ; Kawakami, Kunihiro ; Matsuura, Hidemi ; Mizuno, Takayuki

Author_Institution

Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan

fYear

2009

fDate

15-18 Nov. 2009

Firstpage

1

Lastpage

4

Abstract

Recently, three-phase squirrel-cage induction motors (IMs) have often been used as variable-speed motors driven by an inverter system. However, when an IM is operated over a wide speed range, its losses and efficiency change remarkably. In this paper, the authors present the results of the stray load losses (SLLs) determined by two methods using 4- and 8-pole IMs having different gap lengths; the motors are driven by a sinusoidal-wave source during high-speed constant-voltage operation. Moreover, the characteristics of the efficiencies of the IMs are investigated.

Keywords

dynamometers; induction motors; dynamometers; high-speed constant-voltage operation; sinusoidal-wave source; stray load loss; three-phase squirrel-cage induction motors; variable-speed motors; Equations; Frequency; Induction motors; Inverters; Power amplifiers; Signal generators; Stators; Synchronous motors; Testing; Voltage; Dynamometer; Gap length; High-speed constant-voltage operation; Induction motor; Reverse rotational test; Stray load loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5177-7

Electronic_ISBN

978-4-88686-067-5

Type

conf

DOI

10.1109/ICEMS.2009.5382968

Filename

5382968