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# Evaluation of Transformer Technical Characteristics

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## Abstract

This chapter is devoted to the evaluation of transformer technical characteristics. Decision trees and artificial neural networks are used to solve the noload loss classification problem. Artificial neural networks are used to solve the no-load loss prediction problem. Impedance voltage evaluation is implemented using a particular finite element model with detailed representation of winding geometry.

- Amoiralis, EI, Tsili, MA, Georgilakis, PS (2008) The state of the art in engineering methods for transformer design and optimization: a survey. Journal of Optoelectronics and Advanced Materials 10: pp. 1149-1158
- Andersen, OW (1973) Transformer leakage flux program based on the finite element method. IEEE Transactions on Power Apparatus and Systems 92: pp. 682-689 CrossRef
- Annakkage, UD, McLaren, PG, Dircks, E, Jayasinghe, RP, Parker, AD (2000) A current transformer model based on the Jiles-Atherton theory of ferromagnetic hysteresis. IEEE Transactions on Power Delivery 15: pp. 57-61 CrossRef
- Basak, A, Bonyar, AA (1992) Effects of transformer core assembly on building factors. Journal of Magnetism and Magnetic Materials 112: pp. 406-408 CrossRef
- Basak, A, Yu, CH, Lloyd, G (1994) Core loss computation of a 1000 kVA distribution transformer. Journal of Magnetism and Magnetic Materials 133: pp. 564-567 CrossRef
- Bertotti, G (1988) General properties of power losses in soft ferromagnetic materials. IEEE Transactions on Magnetics 24: pp. 621-630 CrossRef
- Digby SH, Sim HJ (2002) Transformer design for dual-voltage applications. Proc IEEE Rural Electric Power Conference
- Djurovic, M, Carpenter, CJ (1975) 3-dimensional computation of transformer leakage fields and associated losses. IEEE Transactions on Magnetics 11: pp. 1535-1537 CrossRef
- Doulamis, ND, Doulamis, AD, Georgilakis, PS, Kollias, SD, Hatziargyriou, ND (2002) A synergetic neural network-genetic scheme for optimal transformer construction. Integrated Computer-Aided Engineering 9: pp. 37-56
- Dymkov, A (1975) Transformer design. Mir Publishers, Moscow
- Ebert, JA (1995) Criteria for reliable dual voltage power transformers. IEEE Transactions on Power Delivery 10: pp. 845-852 CrossRef
- Elleuch, M, Poloujadoff, M (1996) A contribution to the modeling of three phase transformers using reluctances. IEEE Transactions on Magnetics 32: pp. 3335-3343 CrossRef
- Elleuch, M, Poloujadoff, M (2003) Analytical model of iron losses in power transformers. IEEE Transactions on Magnetics 39: pp. 973-980 CrossRef
- Enokizono, M, Soda, N (1997) Finite element analysis of transformer model core with measured reluctivity tensor. IEEE Transactions on Magnetics 33: pp. 4110-4112 CrossRef
- Enokizono, M, Soda, N (1998) Direct magnetic loss analysis by FEM considering vector magnetic properties. IEEE Transactions on Magnetics 34: pp. 3008-3011 CrossRef
- Enokizono, M, Soda, N (1999) Core loss analysis of transformer by improved FEM. Journal of Magnetism and Magnetic Materials 196-197: pp. 910-912 CrossRef
- Enokizono, M, Yuki, K, Kawano, S (1995) An improved magnetic field analysis in oriented steel sheet by finite element method considering tensor reluctivity. IEEE Transactions on Magnetics 31: pp. 1797-1800 CrossRef
- Escarela-Perez, R, Kulkarni, SV, Kodela, NK, Olivares-Galvan, JC (2007) Asymmetry during loadloss measurement of three-phase three-limb transformers. IEEE Transactions on Power Delivery 22: pp. 1566-1574 CrossRef
- Fecich, D, Balmer, L (1985) Process factors of transformer cores made from 0.18 mm, 0.23 mm, and 0.28 mm thick grain oriented steel. IEEE Transactions on Magnetics 21: pp. 1915-1917 CrossRef
- Fiorello, F, Novikov, M (1990) An improved approach to power loss in magnetic laminations under nonsinusoidal induction waveform. IEEE Transactions on Magnetics 26: pp. 2904-2910 CrossRef
- Georgilakis PS (2000) Contribution of artificial intelligence techniques in the reduction of distribution transformer iron losses. PhD dissertation. National Technical University of Athens, Athens, Greece
- Georgilakis PS, Hatziargyriou ND (1999) Machine learning applications in the transformer manufacturing industry. Proc Advanced Course on Artificial Intelligence 57–65
- Georgilakis, P, Hatziargyriou, N (2002) On the application of artificial intelligence techniques to the quality improvement of industrial processes. Lecture Notes in Computer Science 2308: pp. 473-484 CrossRef
- Georgilakis, PS, Bakopoulos, JA, Hatziargyriou, ND (1997) A decision tree method for prediction of distribution transformer iron losses. Proc Universities Power Engineering Conference 1: pp. 257-260
- Georgilakis, PS, Hatziargyriou, ND, Souflaris, AT (1998a) Artificial intelligence approaches to distribution transformer core quality improvement. Proc International Conference on Electrical Machines 1: pp. 541-546
- Georgilakis, PS, Hatziargyriou, ND, Doulamis, ND, Doulamis, AD, Kollias, SD (1998b) Prediction of iron losses of wound core distribution transformers based on artificial neural networks. Neurocomputing 23: pp. 15-29 CrossRef
- Georgilakis, PS, Hatziargyriou, ND, Paparigas, D (1999a) AI helps reduce transformer iron losses. IEEE Computer Applications in Power 12: pp. 41-46 CrossRef
- Georgilakis, PS, Hatziargyriou, ND, Doulamis, ND, Doulamis, AD, Bakopoulos, JA An efficient PC-based environment for the improvement of magnetic cores industrial process. In: Tzafestas, SG eds. (1999b) Advances in manufacturing: decision, control, and information technology. Springer, London
- Georgilakis, P, Hatziargyriou, N, Paparigas, D, Bakopoulos, J, Elefsiniotis, S (1999c) Automatic learning techniques for on-line control and optimization of transformer core manufacturing process. Proc IEEE Industry Applications Society Annual Meeting 1: pp. 311-322
- Georgilakis P, Hatziargyriou N, Paparigas D, Bakopoulos J (1999d) On-line combined use of neural networks and genetic algorithms to the solution of transformer iron loss reduction problem. Proc IEEE PowerTech
- Georgilakis, PS, Hatziargyriou, ND, Doulamis, AD, Doulamis, ND, Kollias, SD (1999e) A neural network framework for predicting transformer core losses. Proc IEEE International Conference on Power Industry Computer Applications 1: pp. 301-308
- Georgilakis, PS, Doulamis, ND, Doulamis, AD, Hatziargyriou, ND, Kollias, SD (2001a) A novel iron loss reduction technique for distribution transformers based on a genetic algorithmneural network approach. IEEE Transactions on Systems, Man, and Cybernetics, Part C 31: pp. 16-34 CrossRef
- Georgilakis, P, Hatziargyriou, N, Paparigas, D, Elefsiniotis, S (2001b) Effective use of magnetic materials in transformer manufacturing. Journal of Materials Processing Technology 108: pp. 209-212 CrossRef
- Girgis, RS, teNyenhuis, EG, Gramm, K, Wrethag, JE (1998) Experimental investigations on effect of core production attributes on transformer core loss performance. IEEE Transactions on Power Delivery 13: pp. 526-531 CrossRef
- Godec, Z (1977) Influence of slitting on core losses and magnetization curve of grain-oriented electrical steels. IEEE Transactions on Magnetics 13: pp. 1053-1057 CrossRef
- Hatziargyriou, ND, Prousalidis, JM, Papadias, BC (1993) A generalized transformer model based on the analysis of its magnetic circuit. IEE Proceedings, Part C 140: pp. 269-278
- Hatziargyriou, N, Georgilakis, P, Spiliopoulos, D, Bakopoulos, J (1998a) Quality improvement of individual cores of distribution transformers using decision trees. International Journal of Engineering Intelligent Systems for Electrical Engineering and Communications 6: pp. 141-146
- Hatziargyriou, ND, Georgilakis, PS, Paparigas, DG, Bakopoulos, JA (1998b) Prediction of distribution transformer no-load losses using the learning vector quantization neural network. Proc IEEE Mediterranean Electrotechnical Conference 2: pp. 1180-1184
- Ilo, A, Weiser, B, Booth, T, Pfutzner, H (1996) Influence of geometric parameters on the magnetic properties of model transformer cores. Journal of Magnetism and Magnetic Materials 160: pp. 38-40 CrossRef
- Im, CH, Kim, HK, Lee, CH, Jung, HK (2001) Analysis of the three-phase transformer considering the nonlinear and anisotropic properties using the transmission line modeling method and FEM. IEEE Transactions on Magnetics 37: pp. 3490-3493 CrossRef
- Jiles, DC, Atherton, DL (1986) Theory of ferromagnetic hysteresis. Journal of Magnetism and Magnetic Materials 61: pp. 48-60 CrossRef
- Kaimori, H, Kameari, A, Fujiwara, K (2007) FEM computation of magnetic field and iron loss in laminated iron core using homogenization method. IEEE Transactions on Magnetics 43: pp. 1405-1408 CrossRef
- Kalokiris, GK, Kladas, AG, Hatzilau, IK, Cofinas, S, Gyparis, IK (2007) Advances in magnetic materials and their impact on electric machine design. Journal of Materials Processing Technology 181: pp. 148-152 CrossRef
- Kanada, T, Enokizono, M, Kawamura, K, Sievert, JD (1996) Distributions on localized iron loss of three-phase amorphous transformer model core by using two-dimensional magnetic tensor. IEEE Transactions on Magnetics 32: pp. 4797-4799 CrossRef
- Kefalas, TD, Georgilakis, PS, Kladas, AG, Souflaris, AT, Paparigas, DG (2008) Multiple grade lamination wound core: a novel technique for transformer iron loss minimization using simulated annealing with restarts and an anisotropy model. IEEE Transactions on Magnetics 44: pp. 1082-1085 CrossRef
- Kladas, A, Tegopoulos, J (1992) A new scalar potential formulation for 3D magnetostatics necessitating no source field calculation. IEEE Transactions on Magnetics 28: pp. 1103-1106 CrossRef
- Kladas, AG, Papadopoulos, MP, Tegopoulos, JA (1994) Leakage flux and force calculation on power transformer windings under short-circuit: 2D and 3D models based on the theory of images and the finite element method compared to measurements. IEEE Transactions on Magnetics 30: pp. 3487-3490 CrossRef
- Kobayashi, H (1981) Modeling and analysis. Addison-Welsey, Reading, MA
- Kulkarni, SV, Khaparde, SA (2004) Transformer engineering: design and practice. Marcel-Dekker, New York
- Kulkarni, SV, Olivares, JC, Escarela-Perez, R, Lakhiani, VK, Turowski, J (2004) Evaluation of eddy current losses in the cover plates of distribution transformers. IEE Proc Science, Measurement and Technology 151: pp. 313-318 CrossRef
- Ling, PCY, Moses, AJ, McQuade, F, Grimmond, W, Fox, D (1992) Investigation of magnetic degradation of wound cores due to adhesive bonding. Journal of Magnetism and Magnetic Materials 112: pp. 77-80 CrossRef
- Logothetis, N (1992) Managing for total quality. Prentice-Hall International, UK
- Lu, J, Yuan, J, Chen, L, Sheng, J, Ma, X (1998) Calculation of short-circuit reactance of transformers by a line integral based on surface magnetic charges. IEEE Transactions on Magnetics 34: pp. 3483-3486 CrossRef
- Mechler, GF, Girgis, RS (1998) Calculation of spatial loss distribution in stacked power and distribution transformer cores. IEEE Transactions on Power Delivery 13: pp. 532-537 CrossRef
- Mechler, GF, Girgis, RS (2000) Magnetic flux distributions in transformer core joints. IEEE Transactions on Power Delivery 15: pp. 198-203 CrossRef
- Miti, GK, Moses, AJ, Derebasi, N, Fox, D (2003) A neural network-based tool for magnetic performance prediction of toroidal cores. Journal of Magnetism and Magnetic Materials 254-255: pp. 262-264 CrossRef
- Mittle, VN, Mittal, A (1996) Design of electrical machines. Standard Publishers Distributors, Delhi
- Mork, BA (1999) Five-legged wound-core transformer model: derivation, parameters, implementation, and evaluation. IEEE Transactions on Power Delivery 14: pp. 1519-1526 CrossRef
- Moses, AJ (1984) Factors affecting localized flux and iron loss distribution in laminated cores. Journal of Magnetism and Magnetic Materials 41: pp. 409-414 CrossRef
- Moses, AJ (1992) Development of alternative magnetic core materials and incentives for their use. Journal of Magnetism and Magnetic Materials 112: pp. 150-155 CrossRef
- Moses, AJ (1998) Comparison of transformer loss prediction from computed and measured flux density distribution. IEEE Transactions on Magnetics 34: pp. 1168-1170 CrossRef
- Moses, AJ (2003) Prediction of core losses of three phase transformers from estimation of the components contributing to the building factor. Journal of Magnetism and Magnetic Materials 254-255: pp. 615-617 CrossRef
- Nakata, T, Takahashi, N, Kawase, Y, Nakano, M (1984) Influence of lamination orientation and stacking on magnetic characteristics of grain-oriented silicon steel laminations. IEEE Transactions on Magnetics 20: pp. 1774-1776 CrossRef
- Nussbaum, C, Booth, T, Ilo, A, Pfutzner, H (1996) A neural network for the prediction of performance parameters of transformer cores. Journal of Magnetism and Magnetic Materials 160: pp. 81-83 CrossRef
- Nussbaum, C, Pfutzner, H, Booth, Th, Baumgartinger, N, Ilo, A, Clabian, M (2000) Neural networks for the prediction of magnetic transformer core characteristics. IEEE Transactions on Magnetics 36: pp. 313-329 CrossRef
- Olivares, JC, Cañedo, J, Moreno, P, Driesen, J, Escarela, R, Palanivasagam, S (2002) Experimental study to reduce the distribution-transformers stray losses using electromagnetic shields. Electric Power Systems Research 63: pp. 1-7 CrossRef
- Olivares, JC, Yilu, L, Canedo, JM, Escarela-Perez, R, Driesen, J, Moreno, P (2003a) Reducing losses in distribution transformers. IEEE Transactions on Power Delivery 18: pp. 821-826 CrossRef
- Olivares, JC, Kulkarni, SV, Canedo, J, Escarela, R, Driesen, J, Moreno, P (2003b) Impact of the joint design parameters on transformer losses. International Journal of Power & Energy Systems 23: pp. 151-157
- Olivares, JC, Escarela-Perez, R, Kulkarni, SV, Leon, F, Melgoza-Vasquez, E, Hernandez-Anaya, O (2004a) Improved insert geometry for reducing tank-wall losses in pad-mounted transformers. IEEE Transactions on Power Delivery 19: pp. 1120-1126 CrossRef
- Olivares, JC, Escarela-Perez, R, Kulkarni, SV, León, F, Venegas-Vega, MA (2004b) 2D finiteelement determination of tank wall losses in pad-mounted transformers. Electric Power Systems Research 71: pp. 179-185 CrossRef
- Olivares-Galván JC, Georgilakis PS, Ocon-Valdez R (2009) A review of transformer losses. Electric Power Components and Systems, accepted for publication
- Proussalidis, J, Hatziargyriou, N, Kladas, A (2001) Iron lamination efficient representation in power transformers. Journal of Materials Processing Technology 108: pp. 217-220 CrossRef
- Raitsios, P (2001) Leakage field of a transformer under conventional and superconducting condition. Journal of Materials Processing Technology 102: pp. 246-252 CrossRef
- Rajakovic, N, Semlyen, A (1989a) Harmonic domain analysis of field variables related to eddy current and hysteresis losses in saturated laminations. IEEE Transactions on Power Delivery 4: pp. 1111-1116 CrossRef
- Rajakovic, N, Semlyen, A (1989b) Investigation of the inrush phenomenon: a quasi-stationary approach in the harmonic domain. IEEE Transactions on Power Delivery 4: pp. 2114-2120 CrossRef
- Rovolis, P, Kladas, A, Tegopoulos, J (2007) Laminated iron core losses evaluation and measurements. Journal of Materials Processing Technology 181: pp. 182-185 CrossRef
- Sato, T, Sakaki, Y (1990) Physical meaning of equivalent loss resistance of magnetic cores. IEEE Transactions on Magnetics 26: pp. 2894-2897 CrossRef
- Semlyen, A, Rajakovic, N (1989) Harmonic domain modeling of laminated iron core. IEEE Transactions on Power Delivery 4: pp. 382-390 CrossRef
- Soda, N, Enokizono, M (2000) Improvement of T-joint part constructions in three-phase transformer cores by using direct loss analysis with E&S model. IEEE Transactions on Magnetics 36: pp. 1285-1288 CrossRef
- Taguchi, G, Konishi, S (1987) Taguchi methods: orthogonal arrays and linear graphs; tools for quality engineering. ASI, Dearborn, MI
- Tatis, KB, Kladas, AG, Tegopoulos, JA (2004) Harmonic iron loss determination in laminated iron cores by using a particular 3-D finite-element model. IEEE Transactions on Magnetics 40: pp. 860-863 CrossRef
- teNyenhuis EG, Girgis RS (2006) Measured variability of performance parameters of power and distribution transformers. Proc IEEE Power Engineering Society Transmission and Distribution Conference and Exposition, 523–528
- teNyenhuis, EG, Mechler, GF, Girgis, RS (2000) Flux distribution and core loss calculation for single phase and five limb three phase transformer core designs. IEEE Transactions on Power Delivery 15: pp. 204-209 CrossRef
- teNyenhuis, EG, Girgis, RS, Mechler, GF (2001) Other factors contributing to the core loss performance of power and distribution transformers. IEEE Transactions on Power Delivery 16: pp. 648-653 CrossRef
- Tomczuk, B (1988) Analysis of 3D magnetic fields in high leakage reactance transformers. IEEE Transactions on Magnetics 30: pp. 94-97
- Tsili MA (2005) Development of mixed finite element – boundary element numerical techniques for the design of power transformers. PhD dissertation. National Technical University of Athens, Athens, Greece
- Tsili, MA, Kladas, AG, Georgilakis, PS, Souflaris, AT, Pitsilis, CP, Bakopoulos, JA, Paparigas, DG (2004) Hybrid numerical techniques for power transformer modeling: a comparative analysis validated by measurements. IEEE Transactions on Magnetics 40: pp. 842-845 CrossRef
- Tsili, M, Kladas, A, Georgilakis, P, Souflaris, A, Paparigas, D (2005) Numerical techniques for design and modeling of distribution transformers. Journal of Materials Processing Technology 161: pp. 320-326 CrossRef
- Tsili, MA, Kladas, AG, Georgilakis, PS, Souflaris, AT, Paparigas, DG (2006) Advanced design methodology for single and dual voltage wound core power transformers based on a particular finite element model. Electric Power Systems Research 76: pp. 729-741 CrossRef
- Tsili, MA, Kladas, AG, Georgilakis, PS (2008) Computer aided analysis and design of power transformers. Computers in Industry 59: pp. 338-350 CrossRef
- Turowski, J, Turowski, M, Kopec, M (1990) Method of three-dimensional network solution of leakage field of three-phase transformers. IEEE Transactions on Magnetics 26: pp. 2911-2919 CrossRef
- Valkovic, Z (1982) Influence of transformer core design on power losses. IEEE Transactions on Magnetics 18: pp. 801-804 CrossRef
- Valkovic, Z (1984) Additional losses in three-phase transformer cores. Journal of Magnetism and Magnetic Materials 41: pp. 424-426 CrossRef
- Valkovic, Z, Rezic, A (1992) Improvement of transformer core magnetic properties using the step-lap design. Journal of Magnetism and Magnetic Materials 112: pp. 413-415 CrossRef
- Xiang, C, Jinsha, Y, Guoquiang, Z, Yuanlu, Z, Qifan, H (1997) Analysis of leakage magnetic problems in shell-form power transformer. IEEE Transactions on Magnetics 33: pp. 2049-2051 CrossRef
- Zakrzewski, K, Kukaniszyn, M (1992) Three-dimensional model of one- and three-phase transformer for leakage field calculation. IEEE Transactions on Magnetics 28: pp. 1344-1347 CrossRef
- Zakrzewski, K, Tomczuk, B (1996) Magnetic field analysis and leakage inductance calculation in current transformer by means of 3D integral method. IEEE Transactions on Magnetics 32: pp. 1637-1640 CrossRef

- Title
- Evaluation of Transformer Technical Characteristics
- Book Title
- Spotlight on Modern Transformer Design
- Book Part
- Part III
- Pages
- pp 265-329
- Copyright
- 2009
- DOI
- 10.1007/978-1-84882-667-0_6
- Print ISBN
- 978-1-84882-666-3
- Online ISBN
- 978-1-84882-667-0
- Series Title
- Power Systems
- Series ISSN
- 1612-1287
- Publisher
- Springer London
- Copyright Holder
- Springer London
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