Fault diagnosis in six-phase induction motor using a current trajectory mass center |
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| Affiliation: | 1. Escola Superior de Tecnologia de Setúbal, Instituto Politécnico de Setúbal, Setúbal, Portugal;2. CTS/UNINOVA, FCT, Universidade Nova Lisboa, Lisboa, Portugal;3. INESC - ID Lisboa, Lisboa, Portugal;1. Yildiz Technical University, Department of Mechanical Engineering, 34349 Besiktas, Istanbul, Turkey;2. Vienna University of Technology, Institute for Production Engineering and Laser Technology, Department of Interchangeable Manufacturing and Industrial Metrology, Karlsplatz 13/3113, A-1040 Wien, Austria;3. Istanbul Physical Medicine and Rehabilitation Training Hospital Istanbul, Orthopaedics and Traumatology Department, Turkey;4. Yildiz Technical University, Department of Mechatronics Engineering, 34349 Besiktas, Istanbul, Turkey;1. Apex Level Standards and Industrial Metrology Division, CSIR-National Physical Laboratory, New Delhi 110 012, India;2. Dept. of Mechanical, Production & Industrial Engg., Delhi Technological University, Delhi 110 042, India;1. Department of Engineering Mechanics, Kaunas University of Technology, K. Donelaicio 73, LT-44244 Kaunas, Lithuania;2. Department of Engineering Mechanics, Kaunas University of Technology, A. Mickeviciaus 37, LT-44244 Kaunas, Lithuania;3. Department of System Analysis, Kaunas University of Technology Studentu 50-407, LT-51368 Kaunas, Lithuania;4. Department of Machine Engineering, Vilnius Gediminas Technical University, J. Basanaviciaus g. 28, LT-03224 Vilnius, Lithuania;5. Precizika-Metrology, Zirmunu g. 139, LT-09120 Vilnius, Lithuania;1. Department of Civil Engineering, Shantou University, Guangdong, PR China;2. The Key Lab of Digital Signal and Image Processing of Guangdong Province, Shantou University, Guangdong, PR China;3. Department of Information Management, National Taichung University of Technology, Taichung, Taiwan, ROC;1. Universidade de Évora, Centro de Geofísica de Évora, Instituto de Telecomunicações, Évora, Portugal;2. Universidade de Évora, Centro de Geofísica de Évora, Évora, Portugal;3. Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Darmstadt, Germany;4. Instituto Superior Técnico, Universidade de Lisboa, Instituto de Telecomunicações, Lisboa, Portugal |
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| Abstract: | This paper proposes a new methodology for diagnosing the occurrence of stator winding faults in the six-phase induction motor. The proposed approach uses the xy current trajectory mass center of the motor stator currents. The Park transform is applied to the acquired induction motor stator currents. This transformation allows obtaining specific patterns that are used to identify stator winding faults. For healthy motors, a single point in the xy-plane is obtained. However, for a motor with a stator winding fault a circle is obtained, whose radius is related with the severity of the fault. To identify these patterns an algorithm, entitled current trajectory mass center, was developed. A theoretical analysis of the six-phase motor in αβ and xy current coordinates, for healthy and stator fault operation modes, is also presented. In order to show the applicability of the proposed technique several simulation and experimental results are presented. |
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| Keywords: | Six-phase induction motor Fault diagnosis Park transform |
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