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An Experimental Fault Analysis and Speed Control of an Induction Motor using Motor Solver
Sengamalai, Usha,Chinnamuthu, Subramani The Korean Institute of Electrical Engineers 2017 Journal of Electrical Engineering & Technology Vol.12 No.2
This paper deals with the performance analysis of three phase induction motor considering its stator side faults and operating thermal limits. The speed control of induction motor using three phase boost converter operated by a MOSFET switch and a PI controller is demonstrated and presented in this article. IGBTs switches are used for inverter drive mechanism. The experimental result of speed control of induction motor using voltage control technique clearly shows better accuracy than conventional methods of speed control. A three phase 1HP 415V 0.78 kW 4 Pole induction motor is designed using motor solver software. Based on the parameters used in the software thermal analysis of induction motor is done and torque variation with conductor area, efficiency, output curve, losses in different parts of motor has been obtained. Also different types of faults namely under voltage, over voltage, stator imbalanced voltage, turn to turn, locked rotor bar, wrong alignment of rotor bar with respect to stator are studied and fault analysis is performed. Hence comparison is made based upon the results obtained before and after faults.
An Experimental Fault Analysis and Speed Control of an Induction Motor using Motor Solver
Usha Sengamalai,Subramani Chinnamuthu 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.2
This paper deals with the performance analysis of three phase induction motor considering its stator side faults and operating thermal limits. The speed control of induction motor using three phase boost converter operated by a MOSFET switch and a PI controller is demonstrated and presented in this article. IGBTs switches are used for inverter drive mechanism .The experimental result of speed control of induction motor using voltage control technique clearly shows better accuracy than conventional methods of speed control. A three phase 1HP 415V 0.78 kW 4 Pole induction motor is designed using motor solver software. Based on the parameters used in the software thermal analysis of induction motor is done and torque variation with conductor area, efficiency, output curve, losses in different parts of motor has been obtained. Also different types of faults namely under voltage, over voltage, stator imbalanced voltage, turn to turn, locked rotor bar, wrong alignment of rotor bar with respect to stator are studied and fault analysis is performed. Hence comparison is made based upon the results obtained before and after faults.
Aniruddha Mondal,Jay Chandra Dhar,P Chinnamuthu,Naorem Khelchand Singh,Kalyan Kumar Chattopadhyay,Sanat Kumar Das,Santosh Ch Das,Anirban Bhattacharyya 대한금속·재료학회 2013 ELECTRONIC MATERIALS LETTERS Vol.9 No.2
Symmetrical TiO2 nanowire (NW) arrays have been synthesized on Si by using glancing angle deposition technique. The Raman spectrum of TiO2 thin film (TF) and TiO2 NWs sample indicates the presence of both anatase and rutile phase TiO2. The electrical properties of the vertically ordered TiO2 NW arrays have been measured. The leakage current for high-k TiO2/Si capacitance reduced with the addition of TiO2 NWs on 30 nm TF. TiO2 NW dielectric was employed to achieve large conduction band offset between oxide layer and Si. A high gate capacitance has been observed due to NW effect. The barrier height between Ag/TiO2-NW interfaces was 0.9 eV and an exclusively lowest leakage current of 8.8 × 10−7 A/cm2 (at +1 V)was reported for the TiO2 NW device.