title: Simulative and experimental investigation on stator winding turn and unbalanced supply voltage fault diagnosis in induction motors using Artificial Neural Networks.
abstract: The three-phase shift between line current and phase voltage of induction motors can be used as an efficient fault indicator to detect and locate inter-turn stator short-circuit (ITSC) fault. However, unbalanced supply voltage is one of the contributing factors that inevitably affect stator currents and therefore the three-phase shift. Thus, it is necessary to propose a method that is able to identify whether the unbalance of three currents is caused by ITSC or supply voltage fault. This paper presents a feedforward multilayer-perceptron Neural Network (NN) trained by back propagation, based on monitoring negative sequence voltage and the three-phase shift. The data which are required for training and test NN are generated using simulated model of stator. The experimental results are presented to verify the superior accuracy of the proposed method.
authors.affiliation: Iran University of Science and Technology, Iran. Electronic address: Lashkari.negin@gmail.com.
authors.forename: Negin
authors.initials: N
authors.lastname: Lashkari
authors.affiliation: Iran University of Science and Technology, Iran. Electronic address: jposhtan@iust.ac.ir.
authors.forename: Javad
authors.initials: J
authors.lastname: Poshtan
authors.affiliation: Iran University of Science and Technology, Iran. Electronic address: hamid7fekri@gmail.com.
authors.forename: Hamid Fekri
authors.initials: HF
authors.lastname: Azgomi
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D011211:Electric Power Supplies; D004581:Electronics; D000069550:Machine Learning; D008962:Models, Theoretical; D016571:Neural Networks, Computer
keywords: Fault diagnosis; Induction motor; Interturn stator short circuit; Voltage unbalance