Life Estimation of Induction Motor Insulation under Non-Sinusoidal Voltage and Current Waveforms Using Fuzzy Logic
Thyristor based firing angle controlled voltage regulators are extensively used for speed control of single phase induction motors. This leads to power saving but the applied voltage and current waveforms become non-sinusoidal. These non-sinusoidal waveforms increase voltage and thermal stresses which result into accelerated insulation aging, thus reducing the motor life. Life models that allow predicting the capability of insulation under such multi-stress situations tend to be very complex and somewhat impractical. This paper presents the fuzzy logic application to investigate the synergic effect of voltage and thermal stresses on intrinsic aging of induction motor insulation. A fuzzy expert system is developed to estimate the life of induction motor insulation under multiple stresses. Three insulation degradation parameters, viz. peak modification factor, wave shape modification factor and thermal loss are experimentally obtained for different firing angles. Fuzzy expert system consists of fuzzyfication of the insulation degradation parameters, algorithms based on inverse power law to estimate the life and defuzzyficaton process to output the life. An electro-thermal life model is developed from the results of fuzzy expert system. This fuzzy logic based electro-thermal life model can be used for life estimation of induction motors operated with non-sinusoidal voltage and current waveforms.
[1] P. Lezana, J. Rodriguez, M. A. Perez and J. Espinoza, "Input Current Harmonics in a Regenerative Multi-cell Inverter with Single Phase PWM Rectifiers”, IEEE Transaction on Industrial Electronics, vol.56, pp. 408-417, Feb. 2009.
[2] E. Sharifi, S. H. Jayaram and E. A. Cherney, "Analysis of Thermal Stresses in Medium-Voltage Motor Coils under Repetitive Fast Pulse and High-frequency Voltages”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.17, pp 1378-1384, Dec-2010.
[3] J. P. Bellommo, P. Casteian and T. Lebey, "The Effect of Pulsed Voltage on Dielectric Material Properties”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 20-26, Feb-1999.
[4] Juha – Pecca Strom, Juhamatti M. Korhonen, Juho Tyster and Pertti Silventoinen, "Active du/dt-New Output-Filtering Approach for Inverter-fed Electric Drives”, IEEE Transaction on Industrial Electronics, vol.58, pp 3840-3847, Sept-2011.
[5] S .P. Balaji, I. P. Merin Sheema, G. Krithika and S. Usa, "Effect of Repeated Impulses on Transformer Insulation”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.18, pp. 2069-2078, Dec-2011.
[6] A. Cavallini, G. C. Montanari, D. Fabiani and M. Tozzi, "The Influence of PWM Waveform on Induction Motor Insulation System: Perspective for the End Users”, International IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 288-293, 2011.
[7] D. Fabiani, A. Cavallini and G. C. Montanari, "Aging Investigation of Motor Winding Insulation Subjected to PWM Supply”, IEEE Conference on Electrical Insulation & Dielectric Phenomenon, pp 434-457, 2005.
[8] T. G. Arora, M. V. Aware and D. R. Tutakne, "Accelerated Insulation Aging in Phase Angle Controlled Single Phase Induction Motors”, IEEE International Region Ten conference, 2009.
[9] F. Castelli–Deza and M. M. Maglio, "A Coil Model for Voltage Distribution and Electrical Insulation Analysis”, International IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 444-450, 2011.
[10] S. U. Haq, S. H. Jayaram and E. A. Cherney, (Dec- 2007) "Evaluation of Medium Voltage Enameled Wire Exposed to Fast Repetitive Voltage Pulses”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.1, pp194-203, Dec- 2007.
[11] A. Cavallini and G. C. Montanari, "Effect of Supply Voltage Frequency on Testing of Insulation System”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.13, pp 111-121, Dec-2006.
[12] S. M Gubanski, B. Sonerud., T. Bengtsson and J. Blennow, "Dielectric Heating in Insulating Materials Subjected to Voltage Waveforms with High Harmonic Content”, IEEE Transaction on Dielectrics & Electrical Insulation, vol. 16, pp 1926-1931, August-2009.
[13] H. Okubo, N. Hayakawa and G. C. Montanari, "Development on PD Measurement & Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 1516-1530, Dec-2007.
[14] G. C. Montanari, A. Cavallini and A. Caprava, "Partial Discharge Activity and Aging of Power Electronics Controlled Motors”, IEEE International Symposium on Electrical Insulating Materials, pp. 168-171, 2005.
[15] E. Lindell, T. Bengtsson1, J. Blennow and S. M. Gubanski, "Influence of Rise Time on Partial Discharge Extinction Voltage at Semi-square Voltage Waveforms”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.17, pp 141-148, Feb-2010.
[16] A. Tzimas., S. Rowland., L. A. Dissado, M. Fu and U.H. Nisson, "Effect of Long Time Electrical and Thermal Stresses upon the Endurance Capability of Cable Insulation Material”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 1436-1443, Oct-2009.
[17] S. Grubic, J. M. Aller, B. Lu and T. G. Habetler, "A Survey on Testing and Monitoring Methods for Stator Insulation Systems of Low Voltage Induction Machines Focusing on Turn Insulation Problem”, IEEE Transaction on Industrial Electronics, vol.55, pp 4127-4136, Dec- 2008.
[18] G. C. Montanari, G. Mzzanti and A. Cavallini, "Progress in Electro-thermal Life Modeling of Electrical Insulation during the Last Decades”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.9, pp 1730-1741, Oct-2002.
[19] G. C. Montanari and D. Fabiani, "The Effect of Non-sinusoidal Voltage on Intrinsic Aging of Cable & Capacitor Insulating Materials”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 798-802, Dec-1999.
[20] Nadine Lahoud., Jerome Faucher, David Malec and Pascal Maussion, "Electrical Aging Modeling of the Insulation of the Low Voltage Rotating Machines fed by Inverters with the Design of Experiments Method”, IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 272-277, 2011.
[21] A. Bellini, A. F. Filippetti, C. Tassoni, and G. A. Capolino, "Advances in Diagnostic Techniques for Induction Machines”, IEEE Transaction on Industrial Electronics, vol.55, pp 4109-4126, Dec- 2008.
[22] G. C. Montanari and L. Simoni, Fundamentals of Endurance of Electrical Insulating Materials, CLUEB, Bologna, Italy, 1994.
[23] G. C. Stone, E. A. Boulter, I. Culbert and H. Dhirani, Electrical Insulation for Rotating Machines, IEEE Press series on Power Engineering, Piscataway N. J., 2004
[24] E. Cox, The Fuzzy System Handbook, A. P. Professional Press, Cambridge M. A, 1994.
[1] P. Lezana, J. Rodriguez, M. A. Perez and J. Espinoza, "Input Current Harmonics in a Regenerative Multi-cell Inverter with Single Phase PWM Rectifiers”, IEEE Transaction on Industrial Electronics, vol.56, pp. 408-417, Feb. 2009.
[2] E. Sharifi, S. H. Jayaram and E. A. Cherney, "Analysis of Thermal Stresses in Medium-Voltage Motor Coils under Repetitive Fast Pulse and High-frequency Voltages”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.17, pp 1378-1384, Dec-2010.
[3] J. P. Bellommo, P. Casteian and T. Lebey, "The Effect of Pulsed Voltage on Dielectric Material Properties”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 20-26, Feb-1999.
[4] Juha – Pecca Strom, Juhamatti M. Korhonen, Juho Tyster and Pertti Silventoinen, "Active du/dt-New Output-Filtering Approach for Inverter-fed Electric Drives”, IEEE Transaction on Industrial Electronics, vol.58, pp 3840-3847, Sept-2011.
[5] S .P. Balaji, I. P. Merin Sheema, G. Krithika and S. Usa, "Effect of Repeated Impulses on Transformer Insulation”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.18, pp. 2069-2078, Dec-2011.
[6] A. Cavallini, G. C. Montanari, D. Fabiani and M. Tozzi, "The Influence of PWM Waveform on Induction Motor Insulation System: Perspective for the End Users”, International IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 288-293, 2011.
[7] D. Fabiani, A. Cavallini and G. C. Montanari, "Aging Investigation of Motor Winding Insulation Subjected to PWM Supply”, IEEE Conference on Electrical Insulation & Dielectric Phenomenon, pp 434-457, 2005.
[8] T. G. Arora, M. V. Aware and D. R. Tutakne, "Accelerated Insulation Aging in Phase Angle Controlled Single Phase Induction Motors”, IEEE International Region Ten conference, 2009.
[9] F. Castelli–Deza and M. M. Maglio, "A Coil Model for Voltage Distribution and Electrical Insulation Analysis”, International IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 444-450, 2011.
[10] S. U. Haq, S. H. Jayaram and E. A. Cherney, (Dec- 2007) "Evaluation of Medium Voltage Enameled Wire Exposed to Fast Repetitive Voltage Pulses”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.1, pp194-203, Dec- 2007.
[11] A. Cavallini and G. C. Montanari, "Effect of Supply Voltage Frequency on Testing of Insulation System”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.13, pp 111-121, Dec-2006.
[12] S. M Gubanski, B. Sonerud., T. Bengtsson and J. Blennow, "Dielectric Heating in Insulating Materials Subjected to Voltage Waveforms with High Harmonic Content”, IEEE Transaction on Dielectrics & Electrical Insulation, vol. 16, pp 1926-1931, August-2009.
[13] H. Okubo, N. Hayakawa and G. C. Montanari, "Development on PD Measurement & Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 1516-1530, Dec-2007.
[14] G. C. Montanari, A. Cavallini and A. Caprava, "Partial Discharge Activity and Aging of Power Electronics Controlled Motors”, IEEE International Symposium on Electrical Insulating Materials, pp. 168-171, 2005.
[15] E. Lindell, T. Bengtsson1, J. Blennow and S. M. Gubanski, "Influence of Rise Time on Partial Discharge Extinction Voltage at Semi-square Voltage Waveforms”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.17, pp 141-148, Feb-2010.
[16] A. Tzimas., S. Rowland., L. A. Dissado, M. Fu and U.H. Nisson, "Effect of Long Time Electrical and Thermal Stresses upon the Endurance Capability of Cable Insulation Material”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 1436-1443, Oct-2009.
[17] S. Grubic, J. M. Aller, B. Lu and T. G. Habetler, "A Survey on Testing and Monitoring Methods for Stator Insulation Systems of Low Voltage Induction Machines Focusing on Turn Insulation Problem”, IEEE Transaction on Industrial Electronics, vol.55, pp 4127-4136, Dec- 2008.
[18] G. C. Montanari, G. Mzzanti and A. Cavallini, "Progress in Electro-thermal Life Modeling of Electrical Insulation during the Last Decades”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.9, pp 1730-1741, Oct-2002.
[19] G. C. Montanari and D. Fabiani, "The Effect of Non-sinusoidal Voltage on Intrinsic Aging of Cable & Capacitor Insulating Materials”, IEEE Transaction on Dielectrics & Electrical Insulation, vol.6, pp 798-802, Dec-1999.
[20] Nadine Lahoud., Jerome Faucher, David Malec and Pascal Maussion, "Electrical Aging Modeling of the Insulation of the Low Voltage Rotating Machines fed by Inverters with the Design of Experiments Method”, IEEE Symposium on Diagnostic for Electrical Machines and Power Electronic Drives, pp 272-277, 2011.
[21] A. Bellini, A. F. Filippetti, C. Tassoni, and G. A. Capolino, "Advances in Diagnostic Techniques for Induction Machines”, IEEE Transaction on Industrial Electronics, vol.55, pp 4109-4126, Dec- 2008.
[22] G. C. Montanari and L. Simoni, Fundamentals of Endurance of Electrical Insulating Materials, CLUEB, Bologna, Italy, 1994.
[23] G. C. Stone, E. A. Boulter, I. Culbert and H. Dhirani, Electrical Insulation for Rotating Machines, IEEE Press series on Power Engineering, Piscataway N. J., 2004
[24] E. Cox, The Fuzzy System Handbook, A. P. Professional Press, Cambridge M. A, 1994.
@article{"International Journal of Electrical, Electronic and Communication Sciences:66236", author = "Triloksingh G. Arora and Mohan V. Aware and Dhananjay R. Tutakne", title = "Life Estimation of Induction Motor Insulation under Non-Sinusoidal Voltage and Current Waveforms Using Fuzzy Logic ", abstract = "Thyristor based firing angle controlled voltage regulators are extensively used for speed control of single phase induction motors. This leads to power saving but the applied voltage and current waveforms become non-sinusoidal. These non-sinusoidal waveforms increase voltage and thermal stresses which result into accelerated insulation aging, thus reducing the motor life. Life models that allow predicting the capability of insulation under such multi-stress situations tend to be very complex and somewhat impractical. This paper presents the fuzzy logic application to investigate the synergic effect of voltage and thermal stresses on intrinsic aging of induction motor insulation. A fuzzy expert system is developed to estimate the life of induction motor insulation under multiple stresses. Three insulation degradation parameters, viz. peak modification factor, wave shape modification factor and thermal loss are experimentally obtained for different firing angles. Fuzzy expert system consists of fuzzyfication of the insulation degradation parameters, algorithms based on inverse power law to estimate the life and defuzzyficaton process to output the life. An electro-thermal life model is developed from the results of fuzzy expert system. This fuzzy logic based electro-thermal life model can be used for life estimation of induction motors operated with non-sinusoidal voltage and current waveforms.
", keywords = "Aging, Dielectric losses, Insulation and Life Estimation. ", volume = "7", number = "12", pages = "1759-8", }
