Team

Professors

Prof. Dr. Ebrahim Rahimpour

Phone

+49 9721 940-8497

E-Mail

ebrahim.rahimpour[at]thws.de

Visiting Address

Ignaz-Schön-Straße 11
97421 Schweinfurt

Room

1.E.13

Office Hours

On appointment

Areas of Duty

Electrical energy supply

High voltage engineering

Head of laboratory for electrical energy supply

Head of Center for High Voltage Technology and Insulation Systems

Teaching Areas

Current courses

- Hochspannungsisolierwerkstoffe und -systeme (Universität Würzburg, Masterstudiengang Funktionswerkstoffe), Sommersemester

- Electrical Engineering 1 (IBE 4. Semester), Sommersemester

- Elektrotechnik (BWT 2. Semester), Sommersemester

- Grundlagen der Elektrotechnik (BTM 4. Semester), Sommersemester

- Elektrotechnik / Elektronik (BM 1. Semester), Sommersemester & Wintersemester

- Energie- und Antriebstechnik (BWW 5. - 7. Semester), Wintersemester

- Energy and Drives (IBE 5. - 7. Semester), Wintersemester

- Praktikum Hochspannungstechnik (BET 5. Semester), Wintersemester

- Praktikum Messtechnik (BET 1. Semester), Wintersemester

1. E. Yükselen, and E. Rahimpour, “An improvement in the design process of sustainable peak power rating transformer for solar utility”, International Journal of Electrical Power and Energy Systems, Vol.170, No.110928, pp. 1-13, September 2025

2. M. Abouhosseini-Darzi, M. Mirzaie, A. A. Shayegani Akmal, and E. Rahimpour, “Calculation and Analysis of the Electric Field of the OIP Bushings under Internal Humidity and Surface Polluted Conditions using FEM”, IJEEE, Vol.21, No.03, pp. 1-11, September 2025

3. M. B. Ghorbal, H. R. Mirzaei and E. Rahimpour, “Precise Modeling of Chopped Lightning Impulse Test of Power Transformers”, Electric Power Systems Research, Elsevier, Vol.230, No.110207, May 2024

4. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies”, Electra, No.328, pp. 1-13, June 2023

5. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies, Part A: White-Box Models”, CIGRE TB 900, ISBN: 978-2-85873605-8, pp. 1-203, April 2023

6. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies, Part B: Black-Box Models”, CIGRE TB 901, ISBN: 978-2-85873606-5, pp. 1-88, April 2023

7. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies, Part C: Grey Box Models”, CIGRE TB 902, ISBN: 978-2-85873607-2, pp. 1-102, April 2023

8. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies, Part D: Model interfacing and specifications”, CIGRE TB 903, ISBN: 978-2-85873608-9, pp. 1-43, April 2023

9. B. Gustavsen, E. Rahimpour, et. al., “High-Frequency Transformer and Reactor Models for Network Studies, Part E: Measurements and transformer design details”, CIGRE TB 904, ISBN: 978-2-85873609-6, pp. 1-140, April 2023

10. R. Aghmasheh, V. Rashtchi and E. Rahimpour, “Gray Box Modeling of Power Transformer Windings based on Design Geometry and Particle Swarm Optimization Algorithm”, IEEE Transactions on Power Delivery, Vol.33, No.5, pp. 2384-2393, February 2018

11. E. Rahimpour, V. Rashtchi and R. Aghmasheh, “Transiente Vorgänge: Identifikation der Induktivität mit der Kurvenanpassung”, EW: das Magazin für die Energie Wirtschaft, pp. 48-50, December 2017

12. R. Aghmasheh, V. Rashtchi and E. Rahimpour, “Gray Box Modeling of Power Transformer Windings for Transient Studies”, IEEE Transactions on Power Delivery, Vol.32, No.5, pp. 2350-2359, January 2017

13. S. E. Zirka, Y. I. Moroz and E. Rahimpour, “Towards a Transformer Transient Model as a Lumped-Distributed Parameter System”, COMPEL, Vol.36, No.3, pp. 741-750, January 2017

14. V. Behjat, M. Mahvi and E. Rahimpour, “New Statistical Approach to Interpret Power Transformer Frequency Response Analysis: Non-Parametric Statistical Methods”, IET Science, Measurement & Technology, Vol.10, No.4, pp. 364-369, July 2016

15. M. Bigdeli, D. Azizian and E. Rahimpour, “An Improved Big Bang-Big Crunch Algorithm for Estimating Three-Phase Induction Motors Efficiency”, Journal of Operation and Automation in Power Engineering, Vol.4, No.1, pp. 83-92, 2016

16. B. Gustavsen, E. Rahimpour, et. al., “Electrical Transient Interaction between Transformer and the Power System, Part I: Expertise”, CIGRE TB 577A, ISBN: 978-2-85873272-2, pp. 1-175, April 2014

17. B. Gustavsen, E. Rahimpour, et. al., “Electrical Transient Interaction between Transformer and the Power System, Part II: Case Studies”, CIGRE TB 577B, ISBN: 978-2-85873272-2, pp. 1-123, April 2014

18. B. Gustavsen, E. Rahimpour, et. al., “Electrical Transient Interaction between Transformer and the Power System”, Electra, No.273, pp. 96-103, April 2014

19. J. Smajic, R. Obrist, M. Rüegg, B. Cranganu-Cretu, C. Roy, B. Weber and E. Rahimpour, “Lightning Impulse Modeling and Simulation of Dry-Type and Oil-Immersed Power- and Distribution Transformers”, Journal of Energy: Energija, Vol.63, No.1-4, 2014

20. A. Lotfi and E. Rahimpour, “Optimum Design of Core Blocks and Analyzing the Fringing Effect in Shunt Reactors with Distributed Gapped-Core”, Electric Power Systems Research, Elsevier, Vol.101, pp. 63-70, August 2013

21. M. Bigdeli, E. Rahimpour and D. Azizian, “Combination of Mathematical Indices and Probabilistic Neural Network to Detect the Type of Winding Fault in Transformers”, Journal of Electrical Systems, Vol.9, No.2, pp. 167-178, June 2013

22. M. Bigdeli, M. Vakilian and E. Rahimpour, “A Probabilistic Neural Network Classifier-Based Method for Transformer Winding Fault Identification through its Transfer Function Measurement”, European Transactions on Electrical Power (ETEP), Vol.23, No.3, pp. 392-404, April 2013

23. D. Gorzin, E. Rahimpour and A. Gorzin “A New Approach on Fault Discrimination for Diagnosis of Two-Winding Transformers using Transfer Function Method”, International Review on Modelling and Simulations, Vol.5, No.5, pp. 1987-1994, October 2012

24. M. Bigdeli, M. Vakilian and E. Rahimpour, “Transformer Winding Faults Classification based on Transfer Function Analysis by Support Vector Machine”, IET Electric Power Applications, Vol.6, No.5, pp. 268-276, May 2012

25. M. Bigdeli and E. Rahimpour, “Optimized Modeling of Transformer in Transient State with Genetic Algorithm”, International Journal of Energy Engineering, Vol.2, No.3, pp. 108-113, May 2012

26. V. Rashtchi, E. Rahimpour and H. Shahrouzi, “Model Reduction of Transformer Detailed R-C-L-M Model using the Imperialist Competitive Algorithm”, IET Electric Power Applications, Vol.6, No.4, pp. 233-242, April 2012

27. M. Bigdeli, M. Vakilian and E. Rahimpour, “Comparison of Transfer Functions using Estimated Rational Functions to Detect Winding Mechanical Faults in Transformers”, Archives of Electrical Engineering, Vol.61, No.1, pp. 85-99, March 2012

28. M. Bigdeli, M. Vakilian, E. Rahimpour and D. Azizian, “Theoretical and Experimental Investigation of Transformer Winding Fault Detection using Comparison of Transfer Function Coefficients”, ECTI Transactions on Electrical Engineering, Electronics, and Communications (ECTI - EEC), Vol.10, No.1, pp. 107-113, February 2012

29. K. Pourhossein, G. B. Gharehpetian, E. Rahimpour and B. N. Araabi, “A Vector-based Approach to Discriminate Radial Deformation and Axial Displacement of Transformer Winding and Determine Defect Extent”, Electric Power Components and Systems, Taylor & Francis, Vol.40 (2012), No.6, pp. 597-612

30. E. Rahimpour, V. Rashtchi and H. Shahrouzi, “Applying Artificial Optimization Methods for Transformer Model Reduction of Lumped Parameter Models”, Electric Power Systems Research, Elsevier, Vol.84 (2012), No.1, pp. 100-108

31. K. Pourhossein, G. B. Gharehpetian, E. Rahimpour and B. N. Araabi, “A Probabilistic Feature to Determine Type and Extent of Winding Mechanical Defects in Power Transformers”, Electric Power Systems Research, Elsevier, Vol.82 (2012), No.1, pp. 1-10

32. E. Rahimpour, “Fehlererkennung bei Transformatoren: Vergleichen der Übertragungsfunktionen”, EW: das Magazin für die Energie Wirtschaft, Vol.110, No.24, pp. 30-32, November 2011

33. E. Ataei, R. Afshari and E. Rahimpour, “Design and Implementation of an Intelligent Solar Power Plant based on Fuzzy Logic”, International Review of Automatic Control, Vol.4, No.6, pp. 938-942, November 2011

34. V. Rashtchi, E. Rahimpour and S. Fazli, “Genetic Algorithm Application to Detect Broken Rotor Bar in Three Phase Squirrel Cage Induction Motors”, International Review of Electrical Engineering, Vol.6, No.5, pp. 2286-2292, October 2011

35. V. Rashtchi and E. Rahimpour, “Detection and Localization of Turn-to-Turn Short Fault in Power Transformers by Analyzing of Transfer Function using an Artificial Neural Network”, International Review on Modelling and Simulations, Vol.4, No.5, pp. 2159-2163, October 2011

36. E. Rahimpour and S. Tenbohlen, “Fault Diagnosis of Actual Large-Power High-Voltage Windings using Transfer Function Method”, Archives of Electrical Engineering, Vol.60, No.3, pp. 269-281, September 2011

37. V. Rashtchi, E. Rahimpour and J. Mirzaei, “Using Particle Swarm Optimization Algorithm for Transformer Transient Study”, International Review of Electrical Engineering, Vol.6, No.3, pp. 1174-1180, May-June 2011

38. M. Bigdeli, M. Vakilian and E. Rahimpour, “A New Method for Detection and Evaluation of Winding Mechanical Faults in Transformer through Transfer Function Measurements”, Advances in Electrical and Computer Engineering, Vol.11, No.2, pp. 23-30, May 2011

39. R. Afshari and E. Rahimpour, “Design and Implementation of a Machine to Increase the Life of Oil Immersed Transformers by Automatic Restoration of Silica Gel”, Recent Patents on Electrical Engineering, Vol.4, No.2, pp. 108-113, May 2011

40. E. Rahimpour, V. Rashtchi and H. Shahrouzi, “Hochfrequenz-Modellierung: Identifikation von Modellparametern der Leistungstransformatoren”, EW: das Magazin für die Energie Wirtschaft, Vol.110, No.4, pp. 44-47, February 2011

41. V. Rashtchi, E. Rahimpour and H. Fotoohabadi, “Parameter Identification of Transformer Detailed Model based on Chaos Optimization Algorithm”, IET Electric Power Applications, Vol.5, No.2, pp. 238-246, February 2011

42. M. Bigdeli, E. Rahimpour and M. Khatibi, “Transient-State Modeling of Distribution Transformers”, International Review on Modelling and Simulations, Vol.4, No.1, pp. 295-302, February 2011

43. E. Rahimpour, M. Jabbari and S. Tenbohlen, “Mathematical Comparison Methods to Assess Transfer Functions of Transformers to Detect Different Types of Mechanical Faults”, IEEE Transactions on Power Delivery, Vol.25, No.4, pp. 2544-2555, October 2010

44. E. Rahimpour and S. Tenbohlen, “Experimental and Theoretical Investigation of Disc Space Variation in Real High-Voltage Windings using Transfer Function Method”, IET Electric Power Applications, Vol.4, No.6, pp. 451-461, July 2010

45. V. Rashtchi, H. Shayeghi, M. Mahdavi, A. Kimiyaghalam and E. Rahimpour, “Using an Improved PSO Algorithm for Parameter Identification of Transformer Detailed Model”, International Journal of Electrical Power and Energy Systems Engineering, Vol.1, No.3, pp. 138-144, January 2008

46. E. Rahimpour and D. Azizian, “Analysis of Temperature Distribution in Cast-Resin Dry-Type Transformers”, Archiv für Elektrotechnik (Electrical Engineering), Vol.89 (2007), No.4, pp. 301-309

47. E. Rahimpour, M. Barati and M. Schäfer, “An Investigation of Parameters Affecting the Temperature Rise in Windings with Zigzag Cooling Flow Path”, Applied Thermal Engineering, Elsevier, Vol.27 (2007), No.11-12, pp. 1923-1930

48. E. Rahimpour, V. Rashtchi and M. Pesaran, “Parameter Identification of Deep-Bar Induction Motors using Genetic Algorithm”, Archiv für Elektrotechnik (Electrical Engineering), Vol.89 (2007), No.7, pp. 547-552

49. E. Rahimpour, V. Rashtchi and E. M. Rezapour, “Parameter Tuning of Transformer by using of Genetic Algorithm”, Journal of Faculty of Engineering of Tehran University, Vol.41 (2007), No.5, pp. 615-622

50. E. Rahimpour and D. Gorzin, “A new method for comparing the transfer function of transformers in order to detect the location and amount of winding faults”, Archiv für Elektrotechnik (Electrical Engineering), Vol.88 (2006), No.5, pp. 411-416

51. V. Rashtchi, E. Rahimpour and E. M. Rezapour, “Using a genetic algorithm for parameter identification of transformer R-L-C-M model”, Archiv für Elektrotechnik (Electrical Engineering), Vol.88 (2006), No.5, pp. 417-422

52. E. Rahimpour and N. Hamidi, “The Effects of Axial Displacement of Transformer Windings on Impulse and Transferred Voltage Distribution”, Electric Power Systems Research, Elsevier, Vol.76 (2006), No.6-7, pp. 509-514

53. E. Rahimpour, J. Christian, K. Feser and H. Mohseni, “Transfer Function Method to Diagnose Axial Displacement and Radial Deformation of Transformer Windings”, IEEE Transactions on Power Delivery, Vol.18, No.2, pp. 493-505, April 2003

54. E. Rahimpour, H. Lesani, H. Mohseni, J. Christian and K. Feser, “Calculation of Parameters for the Detailed Modelling of Deformed Windings in Frequency Response Analysis”, Journal of Faculty of Engineering of Tehran University, Vol.36 (2003), No.4, pp. 505-516

55. E. Rahimpour, J. Christian, K. Feser and H. Mohseni, “Ability of Transfer Function Method to Diagnose Axial Displacement of Transformer Windings”, European Transactions on Electrical Power (ETEP), Vol.12, No.3, pp. 225-234, May/June 2002

56. E. Rahimpour, J. Christian, K. Feser und H. Mohseni, “Die Fähigkeit eines detaillierten Modells zur Diagnose axialer Verschiebungen in Transformatorwicklungen mit Hilfe von Übertragungsfunktionen”, Archiv für Elektrotechnik (Electrical Engineering), Vol.83 (2001), No.1-2, pp. 55-61

57. E. Rahimpour, J. Christian, K. Feser und H. Mohseni, “Modellierung der Transformatorwicklung zur Berechnung der Übertragungsfunktion für die Diagnose von Transformatoren”, Elektrie, Berlin 54 (2000), No.1-2, pp.18-30

CONFERENCE PAPERS

1. E. Yükselen, and E. Rahimpour, “An Optimization Approach for Sustainable Transformer Design in Photovoltaic Power Plants”, 4th IEEE International Conference on Power Electronics Smart Grid and Renewable Energy (IEEE PESGRE 2025), IIT DHARWAD, Hubli, India, 18-21 December 2025

2. M. Meuser, and E. Rahimpour, “Analyzing of Non-Standard Overvoltages in Different Types of Power Transformer Windings Using Frequency Domain and Time Domain Severity Factors”, CIGRE SC A2 & D1 Joint Colloquium, Seoul, South Korea, No. 2-0295, 27 October – 1 November 2025

3. E. Rahimpour, A. Portillo, and S. Dragostinov, “Testing Challenges in Impulse Testing of Transformers”, CIGRE SC A2 & D1 Joint Colloquium, Seoul, South Korea, No. 2-0228, 27 October – 1 November 2025

4. M. Meuser, E. Rahimpour, and M. Eslamian, “Induktivitätsmatrixerweiterung für die Transientenanalyse in Leistungstransformatoren”, 18th Transformer-Life-Management Konferenz, Wuerzburg, Germany, 15-16 September 2025

5. A. Al-Abadi, E. Rahimpour, and A. Gamil, “Dynamisches thermisches Verhalten von mit Ester-Flüssigkeit gefüllten Transformatoren für Offshore-Windkraftanwendungen in kalten Klimazonen”, 18th Transformer-Life-Management Konferenz, Wuerzburg, Germany, 15-16 September 2025

6. M. Meuser, E. Rahimpour, and M. Eslamian, “An Inductance Matrix Expansion Method for Transient Analysis of Power Transformer using Single Turn Model”, 24th International Symposium on High Voltage Engineering, Karuizawa, Japan, 24-29 August 2025

7. M. B. Ghorbal, H. R. Mirzaei and E. Rahimpour, “Detection of Disk Space Variation in Power Transformers using Nonlinear Dimensionality Reduction Algorithm”, 24th International Symposium on High Voltage Engineering, Karuizawa, Japan, 24-29 August 2025

8. M. Abouhosseini-Darzi, E. Rahimpour, M. Mirzaie, and A. A. Shayegani Akmal, “Investigating the Effects of Moisture Distribution on the Electric Field and Leakage Current of Power Transformer Bushings”, IEEE Electrical Insulation Conference (EIC), South Padre Island, TX, USA, 08-11 June 2025

9. E. Rahimpour, M. B. Ghorbal, and H. R. Mirzaei, “Application of the Nonlinear Kernel Principal Component Analysis in Detecting Disk-to-Disk Faults along a Transformer Winding”, 3rd International Conference – Tesla Innovation Days, Belgrade, Serbia, 7-8 April 2025

10. E. Rahimpour, A. Al-Abadi, and A. Gamil, “Dynamisches Feuchtigkeitsgleichgewicht in flüssigkeitsgefüllten Transformatoren”, 17th Transformer-Life-Management Konferenz, Zeulenroda, Germany, 16-17 September 2024

11. E. Rahimpour, M. B. Ghorbal, and H. R. Mirzaei, “Evaluating the Influence of External Compensators on Chopped Impulse Waves in Power Transformer Testing”, 2024 IEEE International Conference on High Voltage Engineering and Applications, Berlin, Germany, pp. 969-972, 18-22 August 2024

12. M. B. Ghorbal, H. R. Mirzaei, E. Rahimpour and S. Rabih, “Analyzing the Possibility of Improving Waveform Shape in Lightning Impulse Testing of Distribution Transformers”, 28th Electrical Power Distribution Conference, Zanjan, Iran, pp. 1-5, 23-25 April 2024

13. B. Filipović-Grčić, M. Frolov, B. Jurisic, T. Manthe, D. Matveev and E. Rahimpour, “Consideration of Non-Standard Overvoltages Compared with Standard Overvoltages in Power Transformers”, 6th International Colloquium Transformer Research and Asset Management, Split, Croatia, 29 November – 2 December 2023, Paper No. 144

14. E. Rahimpour, “Herausforderungen der Blitzstoßspannungsprüfung an Leistungstransformatoren - Überblick über die CIGRE Arbeitsgruppe A2.63”, 16th Transformer-Life-Management Konferenz, Schweinfurt, Germany, 18-19 September 2023

15. E. Rahimpour, V. Rashtchi and R. Aghmasheh, “Estimation of Number of Model Units in Transformer Detailed RCLM Model based on Terminal Measurement in the Case of Unavailable Design Data”, 21st International Symposium on High Voltage Engineering, Budapest, Hungary, 26-30 August 2019, Paper No. 721

16. E. Rahimpour, V. Rashtchi and R. Aghmasheh, “Dimension Estimation of Transformer Windings based on Frequency Response Measurement”, 21st International Symposium on High Voltage Engineering, Budapest, Hungary, 26-30 August 2019, Paper No. 720

17. S. Tenbohlen, M. Tahir, E. Rahimpour, B. Poulin and S. Miyazaki, “A New Approach for High Frequency Modelling of Disc Windings”, CIGRE 2018, Paper No. A2-214, August 2018

18. E. Rahimpour, V. Rashtchi and R. Aghmasheh, “Estimation of Series Resistance of Transformer Winding for Fast Transient Analysis”, 20th International Symposium on Electrical Apparatus and Technologies, Bourgas, Bulgaria, 3-6 June 2018

19. E. Rahimpour, V. Rashtchi and R. Aghmasheh, “Parameters Estimation of Transformers Gray Box Model”, IEEE International Conference on Modern Electrical and Energy Systems, Kremenchuk, Ukraine, 15-17 November 2017

20. S. E. Zirka, Y. I. Moroz and E. Rahimpour, “Towards a Transformer Transient Model as a Lumped-Distributed Parameter System”, 24th Symposium on Electromagnetic Phenomena in Nonlinear Circuits, Helsinki, Finland, 28 June – 1 July 2016

21. V. Behjat, M. Mahvi and E. Rahimpour, “New Statistical Approach to Interpret Power Transformer Frequency Response Analysis: Non-Parametric Statistical Methods”, 30th International Power System Conference, Tehran, Iran, 23-25 November 2015

22. J. Smajic, R. Obrist, M. Rüegg, B. Cranganu-Cretu, C. Roy, B. Weber and E. Rahimpour, “Lightning Impulse Modeling and Simulation of Dry-Type and Oil-Immersed Power- and Distribution Transformers”, 3rd CIGRE International Colloquium Transformer Research and Asset Management, Split, Croatia, 15-17 October 2014

23. S. Behzadpoor, V. Rashtchi, M. Hashemi and E. Rahimpour, “Using Imperialist Competitive Algorithm for Parameter Identification of Transformer R-L-C-M Model”, International Transformer Conference and Exhibition, Paper No. 14, Tehran, Iran, 16-17 September 2014

24. A. Lotfi, H. K. Hoidalen, N. Chiesa and E. Rahimpour, “Calculation of Off-Core Inductance in Dual-Circuit Model of Transformer”, Power Systems Computation Conference, Wroclaw, Poland, 18-22 August 2014

25. M. Bigdeli, M. Vakilian and E. Rahimpour, “Detection of Winding Faults in Power Transformers using Transfer Function Method based on Probabilistic Neural Networks”, 20th Iranian Conference on Electrical Engineering, Tehran, Iran, 15-17 May 2012

26. K. Pourhossein, G. B. Gharehpetian and E. Rahimpour, “Determining Intensity of Radial Deformation and Axial Displacement of Transformer Winding using Angular Proximity Index”, 26th International Power System Conference, Paper No. 11-E-TRN-1315, Tehran, Iran, 31 October - 2 November 2011

27. K. Pourhossein, G. B. Gharehpetian and E. Rahimpour, “Extracting Indices to Detect Mechanical Fault Extent in Transformers: A Probabilistic Approach”, 26th International Power System Conference, Paper No. 11-E-TRN-1273, Tehran, Iran, 31 October - 2 November 2011

28. M. Bigdeli, M. Vakilian, E. Rahimpour and D. Azizian, “A New Method for Determination the Type of Winding Fault in Transformer using Transfer Function Measurement”, Conference: Soft magnetic material (SMM20), Kos, Greece, September 2011

29. V. Rashtchi, E. Rahimpour and H. Shahrouzi, “Application of Adaptive Step Length Bacterial Foraging Algorithm for Parameter Identification of Transformer Detailed Model”, 17th International Symposium on High Voltage Engineering, Hannover, Germany, 22-26 August 2011, Paper No. B-027

30. V. Rashtchi, E. Rahimpour and H. Shahrouzi, “Transformer Model Reduction of Lumped Parameters Models using Imperialist Competitive Algorithm”, 17th International Symposium on High Voltage Engineering, Hannover, Germany, 22-26 August 2011, Paper No. B-028

31. M. Bigdeli, M. Vakilian, E. Rahimpour and D. Azizian, “Transformer Winding Diagnosis using Comparison of Transfer Function Coefficients”, 8th International Conference by Electrical Engineering / Electronics, Computer, Telecommunications and Information Technology Association (ECTI-CON), Khon Kaen, Thailand, 17-19 May 2011

32. K. Pourhossein, G. B. Gharehpetian and E. Rahimpour, “Buckling Severity Diagnosis in Power Transformer Windings using Euclidean Distance Classifier”, 19th Iranian Conference on Electrical Engineering, Tehran, Iran, 17-19 May 2011

33. K. Pourhossein, G. B. Gharehpetian and E. Rahimpour, “Axial Displacement Extent Determination in Power Transformer Windings using an Adjustable Index”, 25th International Power System Conference, Paper No. 10-F-TRN-1216, Tehran, Iran, 8-10 November 2010

34. K. Pourhossein, G. B. Gharehpetian and E. Rahimpour, “Discrimination of Axial Displacement and Radial Deformation in Power Transformer Windings using Manhattan Distance Function”, 25th International Power System Conference, Paper No. 10-F-TRN-1217, Tehran, Iran, 8-10 November 2010

35. M. Bigdeli, D. Azizian, H. Bakhshi and E. Rahimpour, “Identification of Transient Model Parameters of Transformer using Genetic Algorithm”, IEEE International Conference on Power System Technology (POWERCON), Zhejiang, China, 24-28 October 2010

36. M. Faridi, M. Kharezy, E. Rahimpour, H. R. Mirzaei and A. Akbari, “Localization of Turn-to-Turn Fault in Transformers using Artificial Neural Network and Winding Transfer Function”, 10th IEEE International Conference on Solid Dielectrics (ICSD), Potsdam, Germany, 4-9 July 2010

37. M. Bigdeli and E. Rahimpour, “Estimation of Simplified Transient Model Parameters using Genetic Algorithm”, 18th Iranian Conference on Electrical Engineering, Isfahan, Iran, 11-13 May 2010

38. M. Bigdeli, M. Vakilian and E. Rahimpour, “A New Method of Comparing Transfer Functions based on Vector Fitting to Detect Winding Faults in Power Transformers”, 18th Iranian Conference on Electrical Engineering, Isfahan, Iran, 11-13 May 2010

39. M. Bigdeli, M. Vakilian and E. Rahimpour, “Analysis of the Methods used to Compare Transfer Functions in order to Fault Diagnostics in Power Transformer Windings”, 24th International Power System Conference, Paper No. 09-F-TRN-0111, Tehran, Iran, November 2009

40. A. Mousavi and E. Rahimpour, “Determining the Traveling Wave Coefficients in Power Transformers using Detailed Model”, IEEE Symposium on Industrial Electronics and Applications (ISIEA), Kuala Lumpur, Malaysia, pp. 349-354, 4-6 October 2009

41. D. Azizian, B. Ahmadzadeh and E. Rahimpour, “The Main Parameters Affecting Temperature of Cast-Resin Transformers”, 12th Iranian Student Conference on Electrical Engineering, Tabriz, Iran, 7-9 August 2009

42. A. Rahimpour, V. Rashtchi and E. Rahimpour, “Study of Turn-to-Turn Short Circuit in High-Voltage Windings using Transfer Function Method”, 17th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2009

43. E. Rahimpour and M. Bigdeli, “Simplified Transient Model of Transformer based on Geometrical Dimensions used in Power Network Analysis and Fault Detection Studies”, IEEE Second International Conference on Power Engineering, Energy and Electrical Drives, Lisbon, Portugal, Paper No. 33, pp. 375-380, 18-20 March 2009

44. E. Rahimpour, M. Mousavi and S. Tenbohlen, “New Hybrid Method based on Correlation Coefficients and Artificial Neural Networks to Detect the Fault in Transformers”, 23rd International Power System Conference, Paper No. 49-F-TRN-734, Tehran, Iran, October 2008

45. V. Rashtchi, J. Mirzaei, A. Kimiyaghalam and E. Rahimpour, “A Particle Swarm Optimization Method to Parameter Identification of Detailed Model”, 23rd International Power System Conference, Paper No. 98-F-TRN-807, Tehran, Iran, October 2008

46. E. Rahimpour, M. Mahdavi and A. Marami, “Identification of Three-Phase Double-Fed Induction Motor Parameters by Evolutionary Techniques”, 11th Iranian Student Conference on Electrical Engineering, Zanjan University, Zanjan, Iran, 27-29 August 2008

47. E. Rahimpour, M. Jabbari and S. Tenbohlen, “Determining the Location and Amount of Disc Space Variation in Transformer Windings using Correlation Factors”, 16th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2008

48. E. Rahimpour, M. Mousavi and S. Tenbohlen, “Detection of Disc Space Variations in Transformer Windings by Evaluation of Current and Voltage Waveforms using Correlation Factors”, 13th Electrical Power Distribution Conference, Zibakenar, Iran, 2008

49. V. Rashtchi, H. Fotoohabadi and E. Rahimpour, “Parameter Identification of Power Transformers using Chaos Mathematics”, 22nd International Power System Conference, Paper No. 98-F-TRN-581, Tehran, Iran, November 2007

50. E. Rahimpour, M. Jabbari and S. Tenbohlen, “Detection the Location and Amount of Disc Space Variation in Power Transformer using Weight Functions”, 22nd International Power System Conference, Paper No. 49-F-TRN-446, Tehran, Iran, November 2007

51. E. Rahimpour, M. Feizi, A. Nateghi and K. Miralikhani, “Determining the Parameters of RLCM Detailed Model of Cast-Resin Dry-Type Transformers using FEM”, 22nd International Power System Conference, Paper No. 98-F-TRN-969, Tehran, Iran, November 2007

52. K. Valipour, M. Bathaee, E. Rahimpour and K. Miralikhani, “Fast Transient Analysis of High Voltage Winding of Cast-Resin Dry-Type Transformer and Comparison with Oil Distribution Transformer”, 22nd International Power System Conference, Paper No. 98-F-TRN-158, Tehran, Iran, November 2007

53. E. Rahimpour and S. Tenbohlen, “A Mathematical Model to Investigate Disc Space Variation in Power Transformer using Transfer Function Analysis”, 15th International Symposium on High Voltage Engineering, Ljubljana, Slovenia, 27-31 August 2007, Paper No. T7-146

54. E. Rahimpour and A. Mousavi, “Determining the Frequency Characteristic of Transformer Reflection and Transmission Coefficients using Detailed Model”, 15th International Symposium on High Voltage Engineering, Ljubljana, Slovenia, 27-31 August 2007, Paper No. T2-66

55. E. Rahimpour, M. Faridi, A. Akbari and K. Miralikhani, “Using the Artificial Neural Network (ANN) for Detection and Localization of Turn to Turn Fault in Distribution Transformers”, 15th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2007

56. E. Rahimpour and M. Bigdeli, “Simplified Transient Model of Transformer based on Geometrical Dimensions for Power Network Analysis”, 15th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2007

57. E. Rahimpour and M. Bigdeli, “A Proper Black Box Model for Analyzing Transient Phenomenon in Distribution Transformers”, 15th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2007

58. D. Azizian and E. Rahimpour, “Temperature Prediction in Cast-Resin Dry-Type Transformers Due to Non-Linear Loads”, 15th Iranian Conference on Electrical Engineering, Tehran, Iran, May 2007

59. D. Azizian and E. Rahimpour, “The Effects of Different Parameters and Conditions on the Temperature Distribution of Cast-Resin Transformers”, 21st International Power System Conference, Tehran, Iran, November 2006

60. E. Rahimpour and D. Azizian, “Steady State Thermal Modeling of Cast-Resin Dry-Type Transformers”, 20th International Power System Conference, Tehran, Iran, November 2005

61. E. Rahimpour and N. Hamidi, “The Effects of Axial Displacement of Transformer Windings on Impulse and Transferred Voltage Distribution”, 13th Iranian Conference on Electrical Engineering, Zanjan, Iran, Vol. 4, pp. 413-418, May 2005

62. E. Rahimpour and M. Zeinali, “Different Methods of Elimination or Mitigation of Transformer Inrush Current”, 13th Iranian Conference on Electrical Engineering, Zanjan, Iran, Vol. 4, pp. 510-515, May 2005

63. E. Rahimpour, D. Gorzin and H. Kaiumarzy, “A New Method for Comparing the Transfer Function of Transformers in order to Detect the Location of Winding Faults”, 13th Iranian Conference on Electrical Engineering, Zanjan, Iran, Vol. 4, pp. 368-373, May 2005

64. M. Fathi, E. Rahimpour and K. Zaree, “Modeling of Magnetic Saturation of the Three Phase Induction Motor using the SIMULINK Software Package of MATLAB”, 6th Power System Conference, Tehran, Iran, October 2004

65. E. Rahimpour, H. Lesani, H. Mohseni, J. Christian and K. Feser, “Simulation and Analysis of the Transfer Function to Diagnose Mechanical faults in Transformer Windings”, 10th Iranian Conference on Electrical Engineering, Tabriz, Iran, Vol. 4, pp. 654-659, May 2002

66. E. Rahimpour, J. Christian, K. Feser, H. Lesani and H. Mohseni, “Mathematical Model for Transformer Winding to Diagnose radial Deformation”, 16th International Power System Conference, Tehran, Iran, November 2001

67. E. Rahimpour, J. Christian, K. Feser and H. Mohseni, “Ability of a Detailed Transformer Model to Diagnose Radial Deformation of Windings”, International Conference on Advances in Processing, Testing and Application of Dielectric Materials, Wroclaw, Poland, 17-19 September 2001

68. E. Rahimpour, J. Christian, K. Feser and H. Mohseni, “Calculation of the Transfer Function to Diagnose Axial Displacement and Radial Deformation of Transformer Windings”, 12th International Symposium on High Voltage Engineering, Bangalore, India, Vol.5, No.7-41, pp. 1199-1202, 20-24 August 2001

69. E. Rahimpour, J. Christian, K. Feser and H. Mohseni, “Modeling of Transformer Windings for the Calculation of the Transfer Function for the Monitoring of Transformers”, 15th International Power System Conference, Tehran, Iran, November 2000

70. H. Mohseni and E. Rahimpour, “Calculation of Impulse Voltage Distribution in Transformer Windings”, 5th Iranian Conference on Electrical Engineering, Tehran, Iran, May 1997

BOOKS

1. E. Rahimpour, „Hochfrequente Modellierung von Transformatoren zur Berechnung der Übertragungsfunktionen“, Shaker Verlag, ISBN: 3826592271, Aachen, Germany, 2001 (Dissertation)

Career

Academic Curriculum Vitae

Since April 2023: Professor for electrical power supply and power system components at the THWS

10/2008 – 03/2023: R&D principal engineer and project leader, ABB AG and Hitachi Energy, Bad Honnef

06/2007 – 09/2008: Academic member at the Institute of Power Transmission and High Voltage Technology (IEH) of Stuttgart University

05/2002 – 05/2007: Associate Professor at the Zanjan University, Zanjan

04/1996 – 04/2002: Ph.D. student at the Institute of Power Transmission and High Voltage Technology (IEH) of Stuttgart university and at the Engineering Faculty of Tehran University

06/1995 – 03/1996: Lecturer at Zanjan University, Zanjan

10/1993 - 05/1995: Master’s degree at the Engineering Faculty of Tehran University

10/1989 - 09/1993: Bachelor’s degree at the Engineering Faculty of Tabriz University

Additional Information

Activities in international committees

IEEE Senior Member

Editorial Board Member: Editor of the IEEE Transactions on Power Delivery

CIGRE Member

IEC Member

Convenor of CIGRE Working Group A2.63: Transformer Impulse Testing

Full membership at CIGRE JWG A2/C4.39: Electrical Transient Interaction between Transformers and the Power System

Full membership at CIGRE JWG A2/C4.52: High-Frequency Transformer and Reactor Models for Network Studies

Full membership at CIGRE WG A2.68: Failure Survey of Lower Voltage Generator Step-up Transformers installed in Wind Farms and Photovoltaic Parks

Full membership at CIGRE WG D1.76: Tests for Verification of Quality and Ageing Performance of Cellulose Insulation for Power Transformers

Full membership at CIGRE JWG A2/C4/D1.77: Design of Transformers for Very Fast Transient Overvoltages

Full membership at CIGRE JWG D1/A2.80: Functional Properties of Non-metallic Solid Materials for Liquid filled Transformers and Reactors and their Compatibility with Insulating Liquids

Member of German CIGRE C4: Power System Technical Performance

Full member of IEC MT-60076-4: Guide to the Lightning Impulse and Switching Impulse Testing - Power Transformers and Reactors

Academic Staff