Analysis and test of the sensorless capability of induction motors with created saliency

Author

Mingardi, Damiano ; Bianchi, Nicola ; Alberti, Luigi ; Zeni, Renzo

Author_Institution

Dept. of Ind. Eng., Univ. of Padova, Padua, Italy

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

368

Lastpage

374

Abstract

This paper presents various experimental tests on the sensorless capability of induction motors (IM). An intentionally created saliency is introduced in the rotor so as to allow the rotor position estimation by means of a high frequency injected signal in the stator winding. The experimental results are compared with those of finite element analysis. The parameters of the IM are determined by means of a FE procedure, based on the α- and β-axis model of the machine. Such a procedure is quite rapid, since it is based on the time harmonic response to a high frequency injected signal in the stator winding. This procedure is used to predict the variation of the IM parameters with rotor position and it results to be useful for both analysis of the IM performance and the design step of the machine.

Keywords

finite element analysis; induction motors; rotors; stators; α-axis model; β-axis model; FE procedure; created saliency; finite element analysis; induction motors; rotor position estimation; sensorless capability; stator winding; time harmonic response; Impedance; Inductance; Iron; Prototypes; Rotors; Stator windings; Induction Machine Parameters; Induction Motor; Prototype; Sensorless;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960207

Filename

6960207