Title :
A novel approach for broken rotor bar detection in cage induction motors
Author :
Milimonfared, J. ; Kelk, H. Meshgin ; Der Minassians, A. ; Nandi, S. ; Toliyat, H.A.
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
A new approach has been proposed in this paper to detect broken rotor bars in induction motors. The motor is disconnected from the supply; and the induced voltage in the stator due to only rotor flux is utilized to detect the fault, If there is any broken bar, it will directly affect the induced voltages in the stator windings. Using this approach the effects of source nonidealities (such as unbalance, presence of time harmonics, etc.) and nonlinearity of machine magnetizing characteristics due to saturation can be avoided.
Keywords :
fault location; magnetic flux; magnetisation; rotors; squirrel cage motors; stators; broken rotor bar detection; cage induction motors; magnetizing characteristics nonlinearity; rotor flux; saturation; source nonidealities; stator induced voltage; Bars; Fault detection; Induction motors; Magnetic flux; Residual stresses; Rotors; Saturation magnetization; Stator windings; Thermal stresses; Voltage;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.732308
