All Stories

  1. Detection and Quantitative Diagnosis of Axial Displacement of Transformer Winding by Frequency Response Analysis

    Article • IET Generation Transmission & Distribution, June 2019, the Institution of Engineering and Technology (the IET)

    Prof. Stefan Tenbohlen, Satoru Miyazaki

  2. Validations of simulation of UHF electromagnetic wave propagation in an oil-filled tank by time-domain measurements

    Article • IET Generation Transmission & Distribution, November 2018, the Institution of Engineering and Technology (the IET)

    Prof. Stefan Tenbohlen

  3. Hundred Years of Experience in the Dynamic Thermal Modeling of Power Transformers

    Article • IET Generation Transmission & Distribution, May 2017, the Institution of Engineering and Technology (the IET)

    Prof. Stefan Tenbohlen, Mohammad Djamali

  4. Detection of transformer mechanical deformations by comparing different FRA connections

    Article • International Journal of Electrical Power & Energy Systems, March 2017, Elsevier

    Prof. Stefan Tenbohlen

  5. Improving the numerical indices proposed for the FRA interpretation by including the phase response

    Article • International Journal of Electrical Power & Energy Systems, December 2016, Elsevier

    Prof. Stefan Tenbohlen

  6. Evaluation of Numerical Indices for the Assessment of Transformer Frequency Response

    Article • IET Generation Transmission & Distribution, October 2016, the Institution of Engineering and Technology (the IET)

    Prof. Stefan Tenbohlen, Amir Abbas Shayegani Akmal

  7. Power transformer diagnosis based on mechanical oscillations due to AC and DC currents

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  8. Characterization of UHF PD sensors for power transformers using an oil-filled GTEM cell

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  9. Diagnostic Measurements for Power Transformers

    Article • Energies, May 2016, MDPI AG

    Prof. Stefan Tenbohlen

  10. Self-calibrating decentralized reactive power management for charging infrastructure

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  11. PV curtailment reduction with smart homes and heat pumps

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  12. A proposal for charging infrastructure with phase balancing capabilities

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  13. Discrimination of partial discharge sources in the UHF domain

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  14. Thermal model of oil power transformers with a tap changer

    Article • TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, January 2016, The Scientific and Technological Research Council of Turkey

    Prof. Stefan Tenbohlen

  15. Malfunction Detection of the Cooling System in Air-Forced Power Transformers Using Online Thermal Monitoring

    Article • IEEE Transactions on Power Delivery, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  16. Effect of Different Connection Schemes, Terminating Resistors and Measurement Impedances on the Sensitivity of the FRA Method

    Article • IEEE Transactions on Power Delivery, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  17. Effects of state estimation accuracy on the voltage control of low voltage grids

    Article • September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  18. Impact of Rogowski sensors on the EMC performance of medium voltage power substations

    Article • August 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  19. Optimization of microgrids short term operation based on an enhanced genetic algorithm

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  20. Radiated Emissions of an Electric Drive System Estimated on a Bench Using Disturbance Currents and Transfer Functions

    Article • IEEE Transactions on Electromagnetic Compatibility, June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  21. Optimal energy management system for future microgrids with tight operating constraints

    Article • May 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  22. Ursachen leitungsgebundener Störungen eines KFZ-Inverters im CISPR 25-Komponententest

    Article • e+i Elektrotechnik und Informationstechnik, April 2015, Springer Science + Business Media

    Prof. Stefan Tenbohlen

  23. New Methods of Damping Very Fast Transient Overvoltages in Gas-Insulated Switchgear

    Article • IEEE Transactions on Power Delivery, October 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  24. Frequency and voltage control in microgrids: Modeling and simulations in islanded mode

    Article • October 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  25. Usage of Artificial Neural Networks for pseudo measurement modeling in low voltage distribution systems

    Article • July 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  26. Database-assisted load flow simulation for low voltage grids using a model reduction approach

    Article • July 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  27. Space charge formation in insulating liquids under DC stresses

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  28. Influence of electrode material on conductivity measurements under DC stresses

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  29. Effect of partial discharges on thermal breakdown of oil impregnated paper

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  30. Experimental study on vegetable and mineral transformer oils properties

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  31. The Influence of Network Impedance on Conducted Disturbances Within the High-Voltage Traction Harness of Electric Vehicles

    Article • IEEE Transactions on Electromagnetic Compatibility, February 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  32. Electrical conductivity measurement and determination of ion mobility in insulating oil

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  33. Development of generic dynamic models for distributed generators in microgrids

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  34. Development of state estimator for low voltage networks using smart meters measurement data

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  35. Heat pumps as important contributors to local demand-side management

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  36. Statistical analysis of online ultrahigh-frequency partial-discharge measurement of power transformers

    Article • IEEE Electrical Insulation Magazine, November 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  37. New developments in on-site testing of long lengths of (E)HV power cable

    Article • September 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  38. Impact of multiple restrikes at vacuum circuit breakers on the EMC of medium voltage switchgear

    Article • September 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  39. Estimation of simulated transfer function to discriminate axial displacement and radial deformation of transformer winding

    Article • COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, July 2012, Emerald

    Professor Gevork B. Gharehpetian, Prof. Stefan Tenbohlen

  40. Comparative experimental study of dielectric strength of oil-cellulose insulation for mineral and vegetable-based oils

    Article • June 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  41. On-site PD Diagnostics, FRA and Moisture Measurement for Power Transformers

    Article • IEEJ Transactions on Power and Energy, January 2012, Institute of Electrical Engineers of Japan (IEE Japan)

    Prof. Stefan Tenbohlen

  42. Probabilistic analysis of voltage bands stressed by electric mobility

    Article • December 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  43. Determining power transformers' sequence of service in power grids

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, October 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  44. Influence of Capacitive and Inductive Loads on the Detectability of Arc Faults

    Article • September 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  45. Neuer Strom in alten Netzen?

    Article • Physik in unserer Zeit, September 2011, Wiley

    Prof. Stefan Tenbohlen

  46. Breakdown strength of vegetable-based oils under AC and lightning impulse voltages

    Article • June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  47. A methodology for determining water saturation limits and moisture equilibrium diagrams of alternative insulation systems

    Article • June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  48. Fault diagnosis of actual large-power high-voltage windings using transfer function method

    Article • Archives of Electrical Engineering, January 2011, De Gruyter Open Sp. z o.o.

    Prof. Stefan Tenbohlen

  49. Characterization of automotive high voltage networks for EMI measurements

    Article • November 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  50. Mathematical Comparison Methods to Assess Transfer Functions of Transformers to Detect Different Types of Mechanical Faults

    Article • IEEE Transactions on Power Delivery, October 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  51. Diagnostic Application of Moisture Equilibrium for Power Transformers

    Article • IEEE Transactions on Power Delivery, October 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  52. Characteristics of Series and Parallel Low Current Arc Faults in the Time and Frequency Domain

    Article • October 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  53. Long gap breakdown of natural ester fluid

    Article • October 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  54. Determining power transformers' sequence of maintenance and repair in power grids

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  55. Evaluation of parameters of lightning impulse voltages from transformer tests using the new k-factor approach

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  56. Aging Performance and Moisture Solubility of Vegetable Oils for Power Transformers

    Article • IEEE Transactions on Power Delivery, April 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  57. On-site methods for reliable moisture determination in power transformers

    Article • January 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  58. Time-Domain Characterization of RF Sources for the Design of Noise Suppression Filters

    Article • IEEE Transactions on Electromagnetic Compatibility, November 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  59. Artificial Low Current Arc Fault for Pattern Recognition in Low Voltage Switchgear

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  60. Influence of Automotive Harnesses on Conducted Emissions

    Article • January 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  61. Setup for Measuring the Derating of SMD Components under ESD Stress

    Article • January 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  62. Detection and location of partial discharges in power transformers using acoustic and electromagnetic signals

    Article • IEEE Transactions on Dielectrics and Electrical Insulation, December 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  63. Prospects and limits of common- and differential-mode separation for the filter development process

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  64. Derating of ceramic capacitors under ESD stress

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  65. A fast radiated emission model for arbitrary cable harness configurations based on measurements and simulations

    Article • August 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  66. Sensitivity check for radio frequency partial discharge detection for power transformers

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  67. Mositure ingress in free breathing transformers

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  68. The benefit of characteristic transfer functions in automotive EMC

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  69. Efficient characterization of RF sources for the design of noise suppression filters

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  70. Wide and narrow band PD detection in plug-in cable connectors in the UHF range

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen

  71. Estimation of electromagnetic coupling phenomena in a vehicle wiring harness using characteristic transfer functions

    Article • September 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Stefan Tenbohlen