Full detection of high-resistance connections in multiphase induction machines

Author

Zarri, Luca ; Mengoni, Michele ; Tani, A. ; Gritli, Y. ; Serra, Giovanni ; Filippetti, Fiorenzo ; Casadei, Domenico

Author_Institution

Dept. of Electr., Electron. & Inf. Eng., Univ. of Bologna, Bologna, Italy

fYear

2013

fDate

27-30 Aug. 2013

Firstpage

505

Lastpage

511

Abstract

High-resistance connections in electrical machines cause unbalances in the stator resistances, reduce the efficiency and increase the fire hazard. In this paper the problem of detection of high-resistance connections is investigated for multiphase induction machines with an odd number of phases. The main contribution of the paper is a control scheme that can determine the stator resistance unbalance of all phases, in transient and in steady-state operating conditions. The theoretical analysis and the feasibility of the control scheme are confirmed by experimental tests.

Keywords

asynchronous machines; machine control; control scheme; electrical machines; high-resistance connections detection; multiphase induction machines; stator resistances; steady-state operating conditions; transient operating conditions; Induction machines; Regulators; Resistance; Rotors; Stator windings; Vectors; Condition monitoring; fault detection; fault diagnosis; induction motors; variable-speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED), 2013 9th IEEE International Symposium on

Conference_Location

Valencia

Type

conf

DOI

10.1109/DEMPED.2013.6645762

Filename

6645762