Diagnostika 2026 | International Conference on Diagnostics in Electrical Engineering

2 - 4 SEP 2026 | Pilsen, CZ

10. 7. 2026

🔥🔥 Papers are locked in. Program is being prepared! Don't forget to register!

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9. 6. 2026

🎉 Papers have been reviewed and authors may find the results in the conference system.

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9. 6. 2026

🎉 Participant registration is now open! Don't miss the chance to join us at Diagnostika 2026!

Link

10. 3. 2026

🎉 We have been granted the official auspices of Ministry of Industry and Trade for this year's conference!

DOCUMENT

23. 1. 2026

🎉 Abstract submission deadline has passed. However, we still can accept abstracts until we end with the reviews. Deadline for full papers is 15th March!

16. 12. 2025

🎉 We are officially extending the abstract submission deadline by one month to 15th January 2026.

SUBMIT NOW!

20. 11. 2025

🎉 Abstract Deadline is closing in. 15th December 2025 !!!.

SUBMIT NOW!

22. 9. 2025

🎉 Stay tuned for updates from Diagnostika: Join us at LinkedIn.

11. 5. 2025

🎉 We just published an updated website of Diagnostika 2026.

10. 5. 2025

🎉 We are excitedly preparing the next Diagnostika conference and would like to invite you to attend.

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About

The International Conference on Diagnostics in Electrical Engineering (Diagnostika) (CDEE) is a biennial scientific conference dedicated to sharing the latest advancements and developments in the field of electrical engineering diagnostics. It serves as a key platform for scientists and experts actively involved in electrical engineering, materials science (including structure, features, and applications in electrical systems), and related diagnostic methods. The conference offers a valuable opportunity for professionals to exchange knowledge and research findings. Previous event was indexed in Scopus, IEEE Xplore and Web of Science. As always, the IEEE members have reduced fee by 12 %. History of Diagnostika

17th conference

100+ Participants in 2024

15+ Countries in 2024

Topics

Advanced Laboratory Diagnostic Methods On-Site Testing of Electrical Equipment Electrical Insulation Properties and Structural Changes Alternative Diagnostic Techniques Theories, Methods, and Models in Diagnostics Condition Monitoring and Analysis Electrical Machines and Devices Applications of Artificial Intelligence in Diagnostics

January 15, 2026

Abstracts (extended)

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April 15, 2026

Full papers (extended)

Načítání...

June 20, 2026

Early bird registration (extended)

Načítání...

June 30, 2026

Final papers

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September 2, 2026

Conference opening

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Keynotes & Lectures

Invited Speakers

Invited Speaker

Prof. Alfredo Ortiz Fernández

Universidad de Cantabria, Spain

Keynote Presentation

Retrofilling Power Transformers as a Lever for Circular, Low-Risk Asset Management

Read Abstract Click to expand

According to European Commission estimates, transformer losses in the EU27 and the UK waste about 2.9% of all electricity generated (around 90–100 TWh per year), making their efficiency and lifetime critical for both reliability and decarbonization. Retrofilling, understood as the replacement of mineral insulating oil in service transformers with biodegradable esters, biodegradable hydrocarbon fluids and recycled dielectric liquids, is emerging as a practical circular-economy measure that extends asset life while enhancing fire safety and environmental performance. This paper provides an integrated assessment of such retrofilling solutions from technical, environmental and techno-economic viewpoints. After reviewing the properties, ageing behaviour and field experience of biodegradable esters, biodegradable hydrocarbons, recycled dielectric fluids and mixed mineral-oil/alternative-fluid systems, a life-cycle perspective is adopted to quantify the impact of retrofilling on greenhouse-gas emissions and resource use. Cost models and utility-scale case studies show that, despite a higher upfront fluid cost, retrofills using biodegradable and recycled dielectrics can reduce total cost of ownership by avoiding fire-protection investments, lowering environmental liabilities, enabling more circular use of materials and allowing higher thermal operating margins. The implications for maintenance, diagnostics and standards are analysed, including evolving IEC and IEEE guidance and ongoing IEC JWG46 and CIGRÉ activities on retrofilling practice. Finally, emerging trends such as hybrid and nano-enhanced fluids, bio-synthetic esters, recycled-content dielectrics and sensor-integrated transformer fleets are outlined as enablers of more digital, resilient and circular transformer asset management.

Invited Speaker

Prof. Andrea Cavallini

Università di Bologna, Italy

Keynote Presentation

Perspectives for Testing Electrical Machines in Transport Electrification

Read Abstract Click to expand

In this presentation, I will explore the latest methodologies, standard updates, and practical solutions for Partial Discharge (PD) testing in electrical machines, highlighting how diagnostic requirements fundamentally differ between the high-throughput demands of automotive mass production and the zero-tolerance safety margins of the aerospace industry. I will walk you through the key additions in the 2nd edition of IEC 60034-18-41, focusing on the newly introduced Impulse Voltage Distribution Class (IVDC) designed to address the ultra-fast voltage rise times generated by SiC and GaN semiconductors. Drawing on concrete experimental examples, I will showcase novel high-frequency, bipolar testing setups operating at inverter-like frequencies—around 20 kHz with 30 ns rise times—coupled with UHF sensors and signal processing techniques like STFT and wavelets to reliably detect PD. Additionally, we will discuss practical strategies to streamline routine manufacturing tests for PD-free stators, evaluate the feasibility of testing fully assembled machines to catch post-assembly defects and aim for zero-defect production, and examine the remaining conceptual challenges of UHF-based PD detection under low-pressure conditions in More Electric Aircraft (MEA) environments.

Invited Speaker

Dr. Marek Veveričík

University of Žilina, Slovakia

Keynote Presentation

Diagnosing Disorder: How Nanoparticles Rewire Liquid Crystals

Read Abstract Click to expand

Doping nematic liquid crystals with nanoparticles is a small structural intervention with outsized consequences: molecular anchoring is disturbed, phase transition temperatures shift, switching thresholds move, and — in some systems — a memory effect is induced in the material's response to external fields. This lecture examines a broad family of dopants, varying in size, shape, and concentration, through a shared diagnostic framework. Application of this framework demonstrates that the direction and magnitude of the induced structural changes depend strongly on dopant identity. Across all studies, light transmission under applied electric and magnetic fields and surface acoustic wave (SAW) attenuation are serving as the two principal techniques, complemented by threshold-field analysis and nematic–isotropic transition temperature (TNI) tracking. This shared toolkit reveals how differently each dopant alters the structural response of the host liquid crystal. These results establish the induced structural disorder as a diagnostic signal rather than a confounding factor, indicating that nanoparticle type, shape, size, and concentration can be used as controllable parameters for the deliberate engineering of liquid crystal behavior in optical switching, sensing, and memory-storage applications.

Invited Speaker

Prof. Maja Kobus

Technical University of Applied Science Würzburg-Schweinfurt, Germany

Keynote Presentation

Utilizing Raman Spectroscopy to Detect HVDC-Induced Material Changes in Dielectrics

Read Abstract Click to expand

Transient charge carrier mobility in solid dielectrics under high-voltage direct current (HVDC) stress contributes to power losses in transmitted power and, in the worst case, can lead to complete system failure. In recent years, growing awareness of the importance of studying the transient behavior of charges in polymer dielectrics has increased the application of Pulsed Electro Acoustic (PEA) methods to monitor the injection processes of charge densities and their dynamics. However, this method is currently limited to thin samples (< 2 mm), and the results are heavily influenced by the mathematical signal processing involved. Therefore, a direct observation of charge dynamics remains necessary. The background signal of Raman spectroscopy is highly sensitive to photoluminescence impurities. Assuming that oxygen-rich molecular charge carriers exhibit luminescence activity at a 532 nm excitation wavelength, the time resolved analysis of Raman Background signals seems to be a promising attempt to to directly observe the dynamics of charged and neutral molecules in dielectrics.

16:00 - 17:00 📍 Main Hall

PANEL DISCUSSION

Effective and future-oriented smart diagnostics in the context of the ongoing energy transition

Join us for an open dialogue with leading industry experts and academics on how predictive diagnostics, online monitoring, and modern materials are transforming current and future electrical grids.

Ing. Jan Krišpín

CEO and Member of Board of Directors

ORGREZ, a.s.

Dr. Simon Podkoritnik, Ph.D.

Assistant Director, Transmission Network Infrastructure Division

ELES, d.o.o. – Combined Transmission and Distribution System Operator of the Republic of Slovenia

Prof. Dr.-Ing. habil. Christian Weindl

Director - Institute of High Voltage Technology, Energy System & Asset Diagnostics (IHEA)

Scientific Director of the Cooperative Doctoral Center Sustainable and Intelligent Systems (NISys)

Prof. Yoji Fujita, Ph.D.

Professor, Department of Electrical Energy System Engineering

College of Engineering, Kanazawa Institute of Technology

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PRELIMINARY PROGRAM

The complete scientific program and detailed schedule will be published soon. Below is an overview of the planned conference topics and sections, that will be more specified in the final program.

Preliminary Conference Topics and Sections Overview

Auspices of the Ministry of Industry and Trade

The conference is held under the official auspices of the Ministry of Industry and Trade. We want to express our sincere gratitude for their support and recognition of the importance of our event. This auspice not only adds prestige to the conference but also highlights the significance of the topics we will be discussing. We are honored to have the Ministry's endorsement and look forward to a successful and impactful conference.

Prof. Mentlík Award

The Prof. Mentlík Award, honoring Prof. Ing. Václav Mentlík, CSc., [1939-2023], founder of this conference, celebrates excellence in electrical engineering. Professor Mentlík from the Faculty of Electrical Engineering, University of West Bohemia (FEL ZČU), was a pivotal figure in the research of electro-insulating materials and diagnostics, a mentor to many experts, and the visionary who established this gathering. This award recognizes outstanding contributions to the field and active advancement of the conference in the spirit of its founder.

Awarded

2024: prof. Ing. Alena Pietrikova, CSc. Technical University of Košice (TUKE), SK

Venue

The Diagnostika conference will be held at the Parkhotel Pilsen, a major congress hotel located in the pleasant setting of Borský Park in Pilsen. The hotel offers extensive and modern conference facilities, including numerous halls capable of hosting large events. Its convenient location provides easy access to the city center while offering a peaceful environment. Attendees can also utilize the hotel's accommodation, dining, and leisure amenities. As a partner of the conference, the Parkhotel Pilsen may offer reduced prices for accommodation to participants; please check the conference website for updates on this possibility.

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Conference Fees for attendees

The registration fee include conference proceedings, all session attendance, break refreshments, lunches, social event and gala dinner.

Category	Early Bird (before June 15th 2026)	Regular (after June 15th 2026)
IEEE Member**	370 €	420 €
Non-IEEE Member**	420 €	475 €
Extra Paper***	125 €
Accompanying Person*	225 €

Accompanying Person Kit contains lunch on September 3, Dinner September 2 & Social Event and Dinner September 3

The conference will provide support for limited number of students by reducing their conference fee. For more information please contact: jhornak@fel.zcu.cz or mionge@fel.zcu.cz

***

The registration fee includes a maximum of 2 contributions. If this number is exceeded, a surcharge will be charged for each additional contribution.

Event partners

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Looking back at the Diagnostika 24

The program covered crucial areas like machine condition diagnosis, electric discharge, partial discharge localization, insulation properties, and material science, alongside condition monitoring and accelerated life testing. Highlights included invited lectures, such as Simon Podkoritnik's talk on the impact of reshaping the electrical grid. Connecting industry and academia is vital, and insights from partners like ModemTec and PROFESS | SPARKS INSTRUMENTS were key. The energy during sessions and networking at social events truly captured the spirit of Diagnostika. Thank you to everyone who contributed! Your participation made 2024 a fantastic platform. We're building on this momentum and invite you to Diagnostika 2026 in Pilsen!

PROCEEDINGS (IEEE) HISTORY OF DIAGNOSTIKA

Organizing Committee

prof. Ing. Pavel Trnka, Ph.D., MBA

General Chair

doc. Ing. Jaroslav Hornak, Ph.D., MBA

Executive Chair

Ing. Ondřej Michal, Ph.D.

Publication Chair & Technical Support

doc. Ing. Josef Pihera, Ph.D.

Partners Chair

doc. Ing. Jiří Tupa, Ph.D.

Treasurer

Ing. Pavel Prosr, Ph.D.

Support

International Technical Program Committee

prof. Norasage Pattanadech

King Mongkut's Institute of Technology Ladkrabang
prof. Anton Rassõlkin, Ph.D.

Tallinn University of Technology
Ing. Zdeněk Bezděk, Ph.D.

COGEBI a.s.
Ing. Jan Dončuk, Ph.D.

ČEPS, a.s.
Ing. Jaroslav Hornak, Ph.D., MBA

University of West Bohemia
doc. Ing. František Steiner, Ph.D.

University of West Bohemia
Ing. Štefan Hardoň, Ph.D.

University of Žilina
prof. Ing. Rainer Haller Dr.

University of Regensburg
prof. dr. hab. inž. Marian Kampik

Silesian University of Technology
prof. Dr. techn. Stefan Kornhuber, MBA

University of Applied Science Zittau/Görlitz
prof. RNDr. Jozef Kúdelčík, Ph.D.

University of Žilina
prof. Dr. Eberhard Lemke

TU Dresden
Jian Li, prof., Ph.D.

Chongqing University
doc. Ing. Pavel Mach, CSc.

Czech Technical University in Prague
Michael Muhr, Em. Univ. Prof. Dipl. Ing. Dr. techn. Dr.h.c.

Technical University Graz
prof. Ing. Zdeněk Peroutka, Ph.D.

University of West Bohemia
prof. Ing. Alena Pietriková, CSc.

Technical University of Košice
Simon Podkoritnik, univ. dipl. inž. el.

Elektroinštitut Milan Vidmar
doc. Ing. Radek Procházka, Ph.D.

Czech Technical University in Prague
Yong-June Shin, Ph.D.

Yonsei University
Prof. Dr.-Ing. Christian Staubach

University of Applied Sciences and Arts
Zoltán Ádam Tamus, Ph.D., Dr.

Budapest Univ. of Technology and Economics
Ing. Magdaléna Trnková, Ph.D.

Škoda Transportation a.s.
prof. Ing. Pavel Trnka, Ph.D., MBA

University of West Bohemia
Feipeng Wang, prof., Ph.D.

Chongqing University
Prof. Dr.-Ing. habil. Christian Weindl

Coburg University of Applied Sciences and Arts
Prof. Yoji Fujita, Ph.D.

Kanazawa Institute of Technology
Prof. Dr. Ing. Ricardo Diaz

National University of Tucuman
Prof. Suwarno

Institut Teknologi Bandung
Stane Vižintin, Ph.D.

Elektroinštitut Milan Vidmar