Abstract—The state of degradation of stator groundwall insulation in induction motor results in the state of unbalance in three-phase stator current at fundamental frequency. In this investigation, the computer simulation model to determine this state of unbalance is developed. The practical assumption of stator winding of induction motor being star (Υ) connected with isolated neutral is considered. On the basis of park’s transformation model the stator current data in three-phase machine variable (‘abc’) form is first transformed into equivalent two-phase (‘dq’) form. The graphical dq-data pattern form is realized and certain mathematical parameters are extracted. The extracted features of induction motor for particular case of variation in the state of degradation of stator winding insulation are presented. The performance evaluation of the same is done. On the basis of performance evaluation, it is possible to determine the appropriate selection of specific input parameter conditions for optimal design of suitable artificial neural network classifier.

Index Terms—Computer simulation, induction motor, insulation degradation, park’s current transformation, stator groundwall insulation

Amit J. Modak is registered as a Ph. D. Research Student in Electrical Engineering at Walchand College of Engineering, Sangli, India with Shivaji University, Kolhapur, INDIA (e-mail: amitjmodak2000@yahoo.co.in).
H. P. Inamdar is working as a Research Professor in Electrical Engineering at Rajarambapu Institute of Technology, Rajaramnagar,District-Sangli, Maharashtra, INDIA and associated as research Ph. D. guidewith Shivaji University, Kolhapur, INDIA (e-mail:inamdar_hp@yahoo.co.in).

Cite: Amit J. Modak and H. P. Inamdar, "Performance Evaluation of Computer Simulated Extracted Features of Induction Motor with Healthy State of Insulation Present in Any Two-Phases," International Journal of Computer and Electrical Engineering vol. 4, no. 1, pp. 65-74, 2012.