Title :
Diagnostics of induction machines using the zero sequence voltage
Author :
García, Pablo ; Briz, Fernando ; Degner, Michael W. ; Diez, Alberto B.
Author_Institution :
Dept. of Elec., Comput. & Syst. Eng., Oviedo Univ., Spain
Abstract :
Diagnostics of induction machines using the zero sequence voltage is presented in this paper. Both stator-winding fault and broken rotor bar detection are covered. Faults in the stator windings or damaged rotor bar cause asymmetries in the phase impedances of the machine, which give rise to zero sequence voltage components. The measured zero sequence voltage is shown to contain reliable information on the condition of the machine, with little influence from the operating point or imbalances in the phase voltages. The method will be shown to be valid both for line-connected machines and inverter-fed machines.
Keywords :
asynchronous machines; fault diagnosis; invertors; reliability; rotors; stators; voltage measurement; broken rotor bar detection; induction machine; inverter-fed machine; line-connected machine; stator-winding fault diagnosis; zero sequence voltage; Current measurement; Fault detection; Impedance; Induction machines; Induction motors; Rotors; Stator windings; Systems engineering and theory; Vibration measurement; Voltage measurement;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348496
