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Marek Florkowski - IEEE Xplore Author Profile
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Marek Florkowski

Also published under: M. Florkowski

Publications
81
Citations
766
Publications by Year
19972025
Co-Authors:
Show All Co-Authors (54)
Image of author Marek Florkowski

Marek Florkowski

Also published under: M. Florkowski

Affiliation

Department of Electrical and Power Engineering
AGH University of Krakow
Kraków, Poland

Publication Topics

Biography

Marek Florkowski (M'97-SM'08) received the M.S. and Ph.D. degrees in electronics from AGH University of Science and Technology in Krakow in 1990 and 1994, respectively. From 1990 to 1992 he was employed at ABB Corporate Research Center in Baden-Dättwil and then since 1997 he has developed ABB Corporate Research in Krakow, Poland. In 2009 he obtained habilitation. Member of CIGRE. He is chair of the Technical Committee Diagnostics of the IEEE Dielectrics and Electrical Insulation Society.(Based on document published on 14 December 2020).
Publications
81
Citations
766
Publications by Year
19972025
Co-Authors:
Show All Co-Authors (54)
Author's Published Works

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Effects of Partial Discharge Echo in Motor-Insulation Systems of Transportation Power Devices

Marek Florkowski

IEEE Transactions on Transportation Electrification
Year: 2025 | Volume: 11, Issue: 2 | Journal Article |
One of the mostly applied assessments of electrical insulation’s condition is based on the measurement of partial discharges (PDs). In addition to conventional PD measurements on motor insulation, a novel approach called PD echo (PDE) is described in this article. This can be applied to various excitation-voltage waveshapes [such as sinusoidal, pulse wave modulated (PWM), etc.] that form chopped s...Show More

Effects of Partial Discharge Echo in Motor-Insulation Systems of Transportation Power Devices

Marek Florkowski

Year: 2025 | Volume: 11, Issue: 2 | Journal Article |

Comparison of Initial Voltage Distributions in Layer and Disc Type Power Transformer Windings

Bartłomiej Adamczyk;Piotr Pająk;Marek Florkowski

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2025 | Volume: 32, Issue: 1 | Journal Article |
Power transformers are subjected to surge overvoltages which can lead to failure of the windings insulation system. The amplitude of the overvoltages in the windings is dependent on the parameters of the surge voltage (duration, waveform, steepness, etc.) and the design of the windings, thus various winding designs perform differently when surge voltage is applied to their terminals. The transform...Show More

Comparison of Initial Voltage Distributions in Layer and Disc Type Power Transformer Windings

Bartłomiej Adamczyk;Piotr Pająk;Marek Florkowski

Year: 2025 | Volume: 32, Issue: 1 | Journal Article |

Effects of Mechanical Transversal Bending of Power Cable on Partial Discharges and Dielectric-Loss Evolution

Marek Florkowski;Maciej Kuniewski;Paweł Mikrut

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2024 | Volume: 31, Issue: 6 | Journal Article |
Cited by: Papers (1)
In this article, the investigations of transversal power cable bending cycles on dielectric performance are presented. The effects were assessed by two electrical methods: phase-resolved partial discharge (PD) measurements and dielectric-loss measurements. The original element was a real-time synchronous correlation of these indicators over consecutive bending cycles up to the electrical breakdown...Show More

Effects of Mechanical Transversal Bending of Power Cable on Partial Discharges and Dielectric-Loss Evolution

Marek Florkowski;Maciej Kuniewski;Paweł Mikrut

Year: 2024 | Volume: 31, Issue: 6 | Journal Article |

Digitally Boosted Resilience: Digitalization to Enhance Resilience of Electric Power System

Marek Florkowski;Hideki Hayashi;Shinji Matsuda;Hirotaka Moribe;Norihiko Moriwaki;Darren Jones;Jeff Pauska

IEEE Power and Energy Magazine
Year: 2024 | Volume: 22, Issue: 2 | Magazine Article |
In an energy business that supports social activities, enhancing the resilience of power systems is becoming a critical issue. As electric power companies use great amounts of equipment over long periods of time, they risk the deterioration of their facilities. In addition, they face the risk of cyberattacks, especially those that target network control systems and distributed energy systems. More...Show More

Digitally Boosted Resilience: Digitalization to Enhance Resilience of Electric Power System

Marek Florkowski;Hideki Hayashi;Shinji Matsuda;Hirotaka Moribe;Norihiko Moriwaki;Darren Jones;Jeff Pauska

Year: 2024 | Volume: 22, Issue: 2 | Magazine Article |

Magnetic Field Effects on Partial Discharges in Electrical Insulation Subjected to PWM Excitation

Marek Florkowski

IEEE Transactions on Power Electronics
Year: 2024 | Volume: 39, Issue: 2 | Journal Article |
Cited by: Papers (1)
This article depicts an original measurement methodology and detection approach for determining the influence of a magnetic field on partial discharge (PD) dynamics in electrical insulation while subjected to pulsewidth modulated (PWM) excitation. Unlike conventional PD measurements that are only carried out in an electric field, it was demonstrated that the interplay of electric and magnetic fiel...Show More

Magnetic Field Effects on Partial Discharges in Electrical Insulation Subjected to PWM Excitation

Marek Florkowski

Year: 2024 | Volume: 39, Issue: 2 | Journal Article |

Concept of Pulsed Electroacoustic Imaging for Space Charge Detection in Dielectric Materials

Marek Florkowski;Maciej Kuniewski

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2023 | Volume: 30, Issue: 6 | Journal Article |
Cited by: Papers (2)
The detection of space charge (SC) accumulation and transport in electrical insulation plays an important role in electrical engineering. In this article, the concept of the pulsed electroacoustic (PEA)-based imaging of SCs in dielectric materials was investigated. The main focus is on a visualization of SC distribution in all 3-D. Volumetric profiles of charge density distribution were obtained, ...Show More

Concept of Pulsed Electroacoustic Imaging for Space Charge Detection in Dielectric Materials

Marek Florkowski;Maciej Kuniewski

Year: 2023 | Volume: 30, Issue: 6 | Journal Article |

Correspondence Between Charge Accumulated in Voids by Partial Discharges and Mapping of Surface Charge With PEA Detection

Marek Florkowski;Maciej Kuniewski

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2022 | Volume: 29, Issue: 6 | Journal Article |
Cited by: Papers (10)
Partial discharge (PD) dynamics in gaseous inclusions are related to the memory effects that originate from surface charge accumulation. In this article, the correspondence between a deposited charge that is inside a void during the PD activity with the surface potential mapping and space charge quantity that are obtained through the pulsed electroacoustic (PEA) method was investigated. The experi...Show More

Correspondence Between Charge Accumulated in Voids by Partial Discharges and Mapping of Surface Charge With PEA Detection

Marek Florkowski;Maciej Kuniewski

Year: 2022 | Volume: 29, Issue: 6 | Journal Article |

Effect of Magnetic Field on Partial Discharge Dynamics in Insulation Systems of Transportation Power Devices

Marek Florkowski

IEEE Transactions on Transportation Electrification
Year: 2022 | Volume: 8, Issue: 4 | Journal Article |
Cited by: Papers (9)
The globally observed trend toward electrically supplied devices is common in the transportation segment. Traditionally, the performance of electrical insulation has been assessed with respect to electric stresses and endurance. In all current-carrying devices, magnetic fields will also be superimposed on electric ones; therefore, the influence of a magnetic field’s exposure on partial discharge (...Show More

Effect of Magnetic Field on Partial Discharge Dynamics in Insulation Systems of Transportation Power Devices

Marek Florkowski

Year: 2022 | Volume: 8, Issue: 4 | Journal Article |

Understanding Partial Discharge Behavior from the Memory Effect Induced by Residual Charges: A Review

Cheng Pan;Kai Wu;George Chen;Yu Gao;Marek Florkowski;Zepeng Lv;Ju Tang

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2020 | Volume: 27, Issue: 6 | Journal Article |
Cited by: Papers (56)
Residual charges produced in previous partial discharges (PDs) are considered as one aspect of memory effects that affect subsequent discharge behavior. In this paper, we review past studies about memory effects induced by residual charges during successive PDs. At first, surface charge dynamics for cavity and needle-to-dielectric discharges are presented. Subsequently, three methods used to unrav...Show More

Understanding Partial Discharge Behavior from the Memory Effect Induced by Residual Charges: A Review

Cheng Pan;Kai Wu;George Chen;Yu Gao;Marek Florkowski;Zepeng Lv;Ju Tang

Year: 2020 | Volume: 27, Issue: 6 | Journal Article |

Condition Monitoring and Diagnostics

Marek Florkowski;Jian Li

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2020 | Volume: 27, Issue: 6 | Journal Article |
Cited by: Papers (2)
This special issue of the IEEE Transactions on Dielectrics and Electrical Insulation (TDEI) is devoted to Condition Monitoring and Diagnostics (CMD) of high voltage insulation systems, with special focus on highlights in research and engineering. Uninterrupted power delivery is ensured by reliable power equipment in the areas of electricity generation, transmission and distribution. Diagnostic met...Show More

Condition Monitoring and Diagnostics

Marek Florkowski;Jian Li

Year: 2020 | Volume: 27, Issue: 6 | Journal Article |

Partial Discharges in HVDC Insulation with Superimposed AC Harmonics

Marek Florkowski;Maciej Kuniewski;Paweł Zydroń

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2020 | Volume: 27, Issue: 6 | Journal Article |
Cited by: Papers (19)
This paper describes the influence of AC harmonics in HVDC systems on one of the main indicators of high voltage insulation deterioration, partial discharge. HVDC systems may be subject to various disturbances including harmonics and ripples in the form of pulsating voltages. Experiments, performed on model void specimen at DC voltage with selected superimposed harmonics, are described. A novel ap...Show More

Partial Discharges in HVDC Insulation with Superimposed AC Harmonics

Marek Florkowski;Maciej Kuniewski;Paweł Zydroń

Year: 2020 | Volume: 27, Issue: 6 | Journal Article |

Investigations of transformer winding responses to standard full and chopped lightning impulses

M. Florkowski;J. Furgał;M. Kuniewski;P. Pająk

2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE)
Year: 2018 | Conference Paper |
Cited by: Papers (2)
Voltage tests of power transformers are performed with usage of full and chopped voltage impulses. Due to the normalized procedures the extension of the tests with lightning voltage impulse have to consider voltage impulses chopped after different time. This specific tests are suggested for transformers which are directly connected to GIS substations by means of oil to SF6 bushings or when the pow...Show More

Investigations of transformer winding responses to standard full and chopped lightning impulses

M. Florkowski;J. Furgał;M. Kuniewski;P. Pająk

Year: 2018 | Conference Paper |

Mapping of discharge clusters in void based on surface resistivity

Marek Florkowski;Barbara Florkowska;Maciej Kuniewski;Pawel Zydron

2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE)
Year: 2018 | Conference Paper |
Cited by: Papers (4)
In this paper a novel approach of mapping discharge clusters inside a void in high voltage insulating material, is presented. Operating conditions in the high electric field, with long-lasting exposition, promote formation of local defects being sources of partial discharges, resulting in surface erosion and origination of locally eroded hotspots. Certain class refers to surface effects in the dis...Show More

Mapping of discharge clusters in void based on surface resistivity

Marek Florkowski;Barbara Florkowska;Maciej Kuniewski;Pawel Zydron

Year: 2018 | Conference Paper |

Mapping of discharge channels in void creating effective partial discharge area

Marek Florkowski;Barbara Florkowska;Maciej Kuniewski;Pawel Zydron

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2018 | Volume: 25, Issue: 6 | Journal Article |
Cited by: Papers (31)
This paper describes a novel approach to understanding partial discharge (PD) dynamics and mapping of the discharge channels in a void. During long term PD exposure, discharges develop inside channels within a void, leading to a variation in the discharge area on the void wall as well as a clustering effect. In this paper, the development of a method for identifying localized changes in the dielec...Show More

Mapping of discharge channels in void creating effective partial discharge area

Marek Florkowski;Barbara Florkowska;Maciej Kuniewski;Pawel Zydron

Year: 2018 | Volume: 25, Issue: 6 | Journal Article |

An Improved EMTP-ATP Simulation Model for Electric Arc Analyses - Switching Overvoltage Studies

Piotr Oramus;Tomasz Chmielewski;Tomasz Kuczek;Marek Florkowski

2018 Progress in Applied Electrical Engineering (PAEE)
Year: 2018 | Conference Paper |
The following topics are dealt with: power grids; power supply quality; power convertors; magnetic hysteresis; power engineering computing; voltage control; distributed power generation; distribution networks; photovoltaic power systems; microorganisms.Show More

An Improved EMTP-ATP Simulation Model for Electric Arc Analyses - Switching Overvoltage Studies

Piotr Oramus;Tomasz Chmielewski;Tomasz Kuczek;Marek Florkowski

Year: 2018 | Conference Paper |

Comparison of transformer winding responses to standard lightning impulses and operational overvoltages

Marek Florkowski;Jakub Furgał;Maciej Kuniewski;Piotr Pająk

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2018 | Volume: 25, Issue: 3 | Journal Article |
Cited by: Papers (23)
During operation transformers are typically subjected to overvoltages with different wave shapes. Even though overvoltage protection systems, such as metal oxide surge arresters, are often employed, the overvoltages generated in power systems can still have a significant impact on the insulation systems of the windings of a power transformer. There are numerous examples of transformer failures as ...Show More

Comparison of transformer winding responses to standard lightning impulses and operational overvoltages

Marek Florkowski;Jakub Furgał;Maciej Kuniewski;Piotr Pająk

Year: 2018 | Volume: 25, Issue: 3 | Journal Article |

Investigations on post partial discharge charge decay in void using chopped sequence

Marek Florkowski;Barbara Florkowska;Romuald Włodek

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2017 | Volume: 24, Issue: 6 | Journal Article |
Cited by: Papers (13)
This paper describes a novel approach to investigating the mechanisms related to partial discharge dynamics. Applying the chopped sequence provided insight into the dielectric void and allowed post partial discharge charge decay phenomena to be investigated. The measurements were performed on specimens with an embedded void having three different wall dielectric materials: insulating paper, thermo...Show More

Investigations on post partial discharge charge decay in void using chopped sequence

Marek Florkowski;Barbara Florkowska;Romuald Włodek

Year: 2017 | Volume: 24, Issue: 6 | Journal Article |

Partial discharges in twisted-pair magnet wires subject to multilevel PWM pulses

Marek Florkowski;Paweł Błaszczyk;Paweł Klimczak

IEEE Transactions on Dielectrics and Electrical Insulation
Year: 2017 | Volume: 24, Issue: 4 | Journal Article |
Cited by: Papers (21)
Researchers and designers of insulation systems are facing new challenges due to the ubiquitous presence of power electronics devices in power conversion applications across various voltage levels. The stresses applied to insulation systems by power electronic devices require new approaches for evaluating the intensity and frequency content of working electric field strength and degradation proces...Show More

Partial discharges in twisted-pair magnet wires subject to multilevel PWM pulses

Marek Florkowski;Paweł Błaszczyk;Paweł Klimczak

Year: 2017 | Volume: 24, Issue: 4 | Journal Article |

Application of bidirectional transient voltage suppressor for electric arc suppression in LV switches - simulation and laboratory case study

Piotr Oramus;Tomasz Chmielewski;Tomasz Kuczek;Marek Florkowski

2017 Progress in Applied Electrical Engineering (PAEE)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
This paper presents the analysis of bidirectional Transient Voltage Suppressor (TVS) application for limitation of the electric arc energy in a low voltage circuit. The study employs both simulations and laboratory experiments, which were conducted to present inductive current breaking procedure with use of a standard switch and a switch with passive arc suppressor connected in parallel. EMTP-ATP ...Show More

Application of bidirectional transient voltage suppressor for electric arc suppression in LV switches - simulation and laboratory case study

Piotr Oramus;Tomasz Chmielewski;Tomasz Kuczek;Marek Florkowski

Year: 2017 | Conference Paper |

Investigation of overvoltages in distribution transformers

Marek Florkowski;Maciej Kuniewski;Jakub Furgał;Piotr Pająk

2017 18th International Scientific Conference on Electric Power Engineering (EPE)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
Nowadays voltage transients in electrical power systems can take different shapes related to properties of distortion source and physical phenomenon appearing in systems. Usually overvoltages contain oscillation components of different frequencies, which are propagating along lines reaching transformer terminals. Overvoltages impact power transformer insulation systems in spite of used overvoltage...Show More

Investigation of overvoltages in distribution transformers

Marek Florkowski;Maciej Kuniewski;Jakub Furgał;Piotr Pająk

Year: 2017 | Conference Paper |

Simulation of overvoltages transferred through transformers in EMTP-ATP software

Marek Florkowski;Jakub Furgał;Maciej Kuniewski

2017 18th International Scientific Conference on Electric Power Engineering (EPE)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
Overvoltages are transferred through power transformers by electromagnetic couplings between windings. Their waveforms and maximal values depends on overvoltages shapes occurring in power systems and physical mechanisms in transformer windings. It is a need of coordination insulation studies to perform analysis of transferred overvoltages influence on insulation system of electrical power equipmen...Show More

Simulation of overvoltages transferred through transformers in EMTP-ATP software

Marek Florkowski;Jakub Furgał;Maciej Kuniewski

Year: 2017 | Conference Paper |

Investigation into Limitation of Arc Erosion in LV Switches Through Application of Hybrid Switching

Piotr Oramus;Marek Florkowski;Andrzej Rybak;Jolanta Sroka

IEEE Transactions on Plasma Science
Year: 2017 | Volume: 45, Issue: 3 | Journal Article |
Cited by: Papers (9)
In this paper, measurement results of the arc erosion limitation in low voltage (LV) switches are presented. The reduction of the arc erosion in the analyzed electromechanical switches was achieved through an application of the hybrid switching in the tested alternative current circuit during interruption of the inductive current. The presented method is based on a commutation of the current durin...Show More

Investigation into Limitation of Arc Erosion in LV Switches Through Application of Hybrid Switching

Piotr Oramus;Marek Florkowski;Andrzej Rybak;Jolanta Sroka

Year: 2017 | Volume: 45, Issue: 3 | Journal Article |

Limitation of Electric Arc Energy in LV Switches During Inductive Current Interruption

Piotr Oramus;Marek Florkowski

IEEE Transactions on Power Delivery
Year: 2017 | Volume: 32, Issue: 4 | Journal Article |
Cited by: Papers (9)
In this paper, the commutation and switching mechanisms between the operating low-voltage (LV) switch and parallel external branches are presented. Experiments for the limitation of electric arc energy during inductive current interruption were performed for three scenarios: 1) for standalone operated switch (base case), 2) for passive method of arc energy limitation (widely applied RC branch conn...Show More

Limitation of Electric Arc Energy in LV Switches During Inductive Current Interruption

Piotr Oramus;Marek Florkowski

Year: 2017 | Volume: 32, Issue: 4 | Journal Article |

Full-Maxwell Simulations of Very Fast Transients in GIS: Case Study to Compare 3-D and 2-D-Axisymmetric Models of 1100 kV Test Setup

Marcin Szewczyk;Kamil Kutorasiński;Marcin Wroński;Marek Florkowski

IEEE Transactions on Power Delivery
Year: 2017 | Volume: 32, Issue: 2 | Journal Article |
Cited by: Papers (13)
Development and type testing of gas-insulated switchgear (GIS) disconnectors are supported with the simulation-based analyses of very fast transients (VFTs) that are associated with the disconnector switching operations. In order to analyze local field values in the entire GIS geometry, the full-Maxwell approach needs to be involved for simulating the VFT generation process. According to power sub...Show More

Full-Maxwell Simulations of Very Fast Transients in GIS: Case Study to Compare 3-D and 2-D-Axisymmetric Models of 1100 kV Test Setup

Marcin Szewczyk;Kamil Kutorasiński;Marcin Wroński;Marek Florkowski

Year: 2017 | Volume: 32, Issue: 2 | Journal Article |

Partial discharges in insulation systems subjected to multilevel converters

Marek Florkowski;Paweł Błaszczyk;Paweł Klimczak

2016 IEEE International Power Modulator and High Voltage Conference (IPMHVC)
Year: 2016 | Conference Paper |
Cited by: Papers (8)
The ubiquitous presence of power electronics devices in power conversion applications across various voltage levels creates new challenges for the designers of insulation systems. The stresses applied to insulation systems by power electronics devices require new approaches for evaluating the intensity and frequency content of working electric field strength and degradation processes. Typically th...Show More

Partial discharges in insulation systems subjected to multilevel converters

Marek Florkowski;Paweł Błaszczyk;Paweł Klimczak

Year: 2016 | Conference Paper |

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