A simplified thermal model for variable speed self cooled industrial induction motor

Author

Boglietti, A. ; Cavagnino, A. ; Lazzari, M. ; Pastorelli, M.

Author_Institution

Dipt. di Ingegneria Elettrica Industriale, Politecnico di Torino, Italy

Volume

2

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

723

Abstract

In this paper, a simplified thermal model for variable speed self cooled induction motors is proposed and experimentally verified. The thermal model is based on simple equations that are compared with more complex equations well known in literature. The proposed thermal model allows to predict the over temperature in the main parts of the motor, starting from the measured or the estimated losses in the machine. In the paper the description of the thermal model set up is reported in detail. Finally, the model is used to define the correct power derating for a variable speed PWM induction motor drive.

Keywords

cooling; induction motor drives; machine theory; thermal analysis; variable speed drives; machine losses; overtemperature prediction; simplified thermal model; variable-speed self-cooled industrial induction motor; Engine cylinders; Equations; Heat transfer; Impedance; Induction motors; Pulse width modulation; Rotors; Stators; Temperature; Thermal resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1042640

Filename

1042640