Stator winding resistance estimation for temperature monitoring of induction motor under unbalance supplying by DC injection method

Author

Sabaghi, M. ; Farahani, H. Feshki ; Hafezi, H.R. ; Kiani, P. ; Jalilian, A.R.

Author_Institution

Islamic Azad Univ., Ashtian

fYear

2007

fDate

4-6 Sept. 2007

Firstpage

217

Lastpage

222

Abstract

In this paper, stator-winding resistance has been estimated for temperature monitoring of induction motor under unbalance supplying condition. For this reason, the resistance of stator winding is estimated under balance and unbalanced condition by injecting a DC signal to AC voltage. In this study, the stator temperature is measured by construction of a temperature measurement system using sensor-installing method. Each method is implemented on the 1.1 kW/50 Hz/1400 rpm three- phase squirrel cage induction motor and experimental results under balanced and unbalance conditions show that the estimated method is capable of responding to changes of the motor thermal characteristics, resulting in reliable thermal protection.

Keywords

induction motors; monitoring; stators; temperature measurement; DC injection method; induction motor; reliable thermal protection; sensor-installing method; stator winding resistance estimation; temperature monitoring; Condition monitoring; Costs; Electrical resistance measurement; Induction machines; Induction motors; Protection; Stator windings; Temperature measurement; Temperature sensors; Voltage; DC injection; Induction motor; Stator Resistance Estimation and temperature protection; Stator Winding Temperature Estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference, 2007. UPEC 2007. 42nd International

Conference_Location

Brighton

Print_ISBN

978-1-905593-36-1

Electronic_ISBN

978-1-905593-34-7

Type

conf

DOI

10.1109/UPEC.2007.4468949

Filename

4468949