Title :
High-Resistance Connection Detection in Induction Motor Drives Using Signal Injection
Author :
de la Barrera, Pablo M. ; Bossio, G.R. ; Solsona, Jorge A.
Author_Institution :
Grupo de Electron. Aplic., Univ. Nac. de Rio Cuarto, Rio Cuarto, Argentina
Abstract :
Two new methods for high-resistance connection (HRC) diagnosis in induction motor (IM) drives are presented in this effort. These automatic offline methods are based on a signal injection strategy applied to the IM at standstill. By measuring the voltage in the machine neutral point and phase currents, it is possible to detect and isolate connection problems. Experimental results showing a good sensitivity to HRCs and immunity to symmetrical stator resistance variations were obtained in a laboratory setup.
Keywords :
fault diagnosis; induction motor drives; signal processing; stators; IM drives; automatic offline methods; connection problems; high-resistance connection detection; high-resistance connection diagnosis; induction motor drives; laboratory setup; machine neutral point; phase currents; signal injection strategy; symmetrical stator resistance variations; Circuit faults; Inverters; Resistance; Stator windings; Vectors; Voltage measurement; Fault diagnosis; high-resistance connection (HRC); induction motor (IM); signal injection;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2013.2278957
