Tesis doctoral “Modelado y Simulación de Descargas Parciales Internas, Arborescencias Eléctricas y Vida Útil de Dieléctricos Poliméricos Sólidos Utilizados en Activos Eléctricos”

El pasado 17 de septiembre de 2021, el doctorando Johnatan Rodríguez-Serna defendió su tesis doctoral titulada “Modelado y Simulación de Descargas Parciales Internas, Arborescencias Eléctricas y Vida Útil de Dieléctricos Poliméricos Sólidos Utilizados en Activos Eléctricos”, con título en inglés “Modelling and Simulation of Internal Partial Discharges, Electrical Treeing and Lifetime Prognosis of Solid Polymeric Dielectrics Used in Electrical Assets” en el Programa de Doctorado en Ingeniería de Producción y Diseño Industrial de la Escuela Técnica Superior de Ingeniería y Diseño Industrial (ETSIDI), de la Universidad Politécnica de Madrid (UPM), España, bajo la tutela del profesor Ricardo Albarracín Sánchez.

Dicho trabajo tiene la mención internacional, habiéndolo evaluado dos expertos internacionales del área de conocimiento de ingeniería eléctrica, defendiéndose ante un panel de expertos en el área, tres de universidades españolas y dos de universidades de fuera de España y, además, con una repercusión internacional notoria, por contar con más de 59 citas sus publicaciones a la fecha de la defensa y por haber tenido la sesión de defensa una asistencia de hasta 40 investigadores interesados en su trabajo provenientes de todo el mundo. Como ejemplo, asistieron investigadores de de países como Arabia Saudí, China, Colombia, España, EEUU, Grecia, India, Italia, Malasia, Nigeria, Suecia, entre otros.

A finales de 2018, Johnatan obtuvo financiación de la Fundación Carolina, en colaboración con la Universidad de Antioquia (UdeA), Colombia y la UPM para llevar a cabo sus estudios de doctorado en la UPM, universidad de reconocido prestigio y que según los rankings internacionales, como el QS World University Ranking 2021, se encuetra en la posición 79 en el área de Engineering Electrical & Electronic https://transparencia.upm.es/resultados/rankings.

Los resultados obtenidos por Johnatan durante sus estudios de doctorado destacan en cuanto a diversidad, calidad y cantidad.

Como muestra, se enumeran sus nueve publicaciones en revistas científicas de primer nivel indexadas en primeros cuartiles de SCOPUS y del Journal Citation Report (JCR), algunas de ellas con colaboraciones internacionales con investigadores de la Xi’an Jiaotong University (XJTU), China, Jubail Industrial College, Arabia Saudí, Virginia Tech, EEUU.

Además, ha presentado tres comunicaciones a congresos internacionales de reconocido prestigio del Institute of Electrical and Electronics Engineers (IEEE) en el área de la ingeniería eléctrica y la alta tensión, ha registrado un software propio y ha participado en un proyecto del Plan Nacional de Investigación en España, con colaboración entre la Universidad Carlos III de Madrid (UC3M) y la UPM, aparte de otros trabajos de asesoría a estudiantes y colaboración en comunicaciones internacionales que hemos realizado en la Nanjing University of Aeronautics & Astronautics (NUAA) y el Beijing Institute of Technology (BIT) de China.

A continuación se detallan los resultados obtenidos por el Dr. Johnatan Rodríguez-Serna más representativos.

Artículos de revista:

  1. Modeling Oil-paper Insulation Frequency-Domain Spectroscopy Based on its Microscopic Dielectric Processes,
    J. RODRÍGUEZ, IEEE Transactions on Dielectrics and Electrical Insulation Vol.26 pags. 1788-1796 (F.I. 2.554) 2019
  2. Numerical simulation of temperature and pressure changes due to partial discharges in spherical cavities within solid dielectrics at different ageing conditions, J. RODRÍGUEZ, Energies Vol.12 pags. 4771-4771 (F.I. 2.702) 2019
  3. Separation of partial discharges sources measured in the high-frequency range with HFCT sensors using a 3D-Phased-Resolved pattern, J. RODRÍGUEZ, Sensors Vol.20 pags. 382-382 (F.I. 3.275) 2020
  4. Finite-element-analysis models for numerical simulation of partial discharges in spherical cavities within solid dielectrics: a review and a novel method, J. RODRÍGUEZ, High Voltage Vol.5 pags. 556-568 (F.I. 3.027) 2020
  5. Computer Simulation of Partial Discharges in Voids inside Epoxy Resins Using Three-Capacitance and Analytical Models, J. RODRÍGUEZ, Polymers Vol.12 pags.77-77 (F.I. 3.426) 2020
  6. A Finite Element Analysis and an Improved Induced Charge Concept for Partial Discharge Modeling,
    J. RODRÍGUEZ, IEEE Transactions on Power Delivery Vol.36 pags. 2570-2581 (F.I. 3.681) 2020
  7. An Improved Physical-Stochastic Model for Simulating Electrical Tree Propagation in Solid Polymeric Dielectrics,
    J. RODRÍGUEZ, Polymers Vol.12 pags. 1768-1768 (F.I. 3.426) 2020
  8. Improved deterministic and stochastic models for simulating partial discharges in non-conducting trees inside solid dielectrics, J. RODRÍGUEZ, High Voltage Vol.6 pags. 82-94 (F.I. 3.027) 2021
  9. A Study on the Life Estimation and Cavity Surface Degradation Due to Partial Discharges in Spherical Cavities within Solid Polymeric Dielectrics Using a Simulation Based Approach, J. RODRÍGUEZ, Polymers Vol.13 pags.
    324-324 (F.I. 3.426) 2021

Proyecto:

  1. Gestión del ciclo de vida de transformadores aislados con fluidos biodegradables, J. RODRÍGUEZ, 2021

Software:

  1. PDSym-1S, J. RODRÍGUEZ, 2019

Congresos:

  1. Partial Discharges Measurements for Condition Monitoring and Diagnosis of Power Transformers: A Review, 2019 6th International Advanced Research Workshop on Transformers (ARWtr) – Córdoba, España, J. RODRÍGUEZ, 2019
  2. Streamer Simulation in Nano-Based Dielectric Fluids at Different Fe3O4 Nanoparticle Concentrations, 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL) – Roma, Italia, J. RODRÍGUEZ, 2019
  3. Simulation of Polymeric Insulators Ageing Induced by the Impact Energy of Electrons During Partial Discharge Activity, 2021 IEEE Texas Power and Energy Conference (TPEC) – College Station, TX, USA, J. RODRÍGUEZ, 2021

Special issue “Frontiers in Partial Discharge Detection, Monitoring and Diagnosis” Sensors MDPI

I am very glad to inform that paper submissions are open up to 31/12/2021 to the special issue named “Frontiers in Partial Discharge Detection, Monitoring and Diagnosis” in which I am Guest Editor for Sensors MDPI, journal ranked in the Q1 (JCR ranking).

In this link: https://www.mdpi.com/journal/sensors/special_issues/PDD2021 you can find additional information.

Special Issue Information

Dear Colleagues,

Condition monitoring (CM) of high-voltage (HV) insulation systems is essential for establishing a correct diagnosis regarding the health of these costly and safety-critical industrial assets, as well as for implementing practical condition-based-maintenance (CBM) regimes. The assets being monitored may include rotating machines, power transformers, HV cables and accessories, air-insulated-substations (AIS), gas-insulated-switchgear (GIS) and overhead lines. Recent advances have seen widespread development of contact and non-contact sensors for detecting and locating partial discharges and electrical arcs. These sensors play an important role in periodic testing, continuous monitoring or ‘fingerprinting’ of partial discharges (PDs) activity in insulation systems from HV equipment. Practical applications of inductive, acoustic, optical UHF and other RF techniques are leading to the development of new sensors and associated solutions for signal acquisition, processing, analysis and interpretation, which in turn require new approaches to decision making about the condition of assets being monitored.

The aim of this Special Issue is to report on recent advances relating to the following themes: (1) contact (inductive, HFCT, Rogowski coils, etc.) and non-contact sensors (RF, UHF, near field, electric, magnetic, acoustic, optical, etc.) used for detecting signals emitted by insulation defects either internally, or external to the equipment in question; (2) practical methods for integrating these sensors into real equipment for use in condition monitoring; (3) case studies and examples of implementation of the techniques in an industrial or laboratory setting; (4) sensor models to support the design process or for predicting their response (using data-driven modeling approaches, for example); (5) bridging the gap between condition monitoring research and subsequent decision making using these technologies, possibly in combination with other monitoring parameters, and (6) machine learning for smart detection, localization, and pattern recognition of PD pulses.

Prof. Dr. Ricardo Albarracín-Sánchez
Dr. Martin D. Judd
Prof. Dr. Guillermo Robles
Prof. Dr. Pavlos Lazaridis

Guest Editors

Below, are previous special issues in which I served as Guest Editor that have additional papers related with partial discharges, high voltage, condition monitoring and electrical insulation diagnosis, which could be of your interest:

Special Issue in Machines: Machinery Condition Monitoring and Industrial Analytics
Special Issue in Sensors: UHF and RF Sensor Technology for Partial Discharge Detection
Special Issue in Sensors: Acoustic, UHF and RF Sensor Technology for Partial Discharge Detection

About Ricardo Albarracín-Sánchez

Ricardo Albarracín-Sánchez was born in Madrid, Spain. He is currently Associate Professor and Vice-dean of economic affairs and planning at Technical School of Engineering and Industrial Design (Escuela Técnica Superior de Ingeniería y Diseño Industrial, ETSIDI) belonging to Universidad Politécnica de Madrid (UPM), Madrid, Spain.

He received his B.Sc., M.Sc. and Ph.D. degrees in electrical engineering, respectively, in 2008, 2010 and 2014 from the Universidad Carlos III de Madrid (UC3M), Madrid, Spain.

In 2008, he joined the Department of Electrical Engineering in the UC3M as Assistant Professor (2008-2014) where he obtained a scholarship to study a Master degree and carried out his research in the High-Voltage Research and Tests Laboratory (LINEALT). In 2014, his Ph. D. thesis entitled “Partial discharges measurements in radiofrequency” obtained the highest rating of Outstanding with Honours. In 2015, he worked in the High-Voltage laboratory at ETSIDI-UPM under a postdoc contract. In mid 2015, he joined Boslan Ingeniería y Consultoría being leader in Innovation, Technology and R&D in the electrical grids and generation area providing services to Gas Natural Fenosa (Naturgy) (2015-2016) and also working as Adjunct Professor at Universidad Pontificia de Comillas, Madrid, Spain.

In 2016, he joined the Department of Electrical and Electronic Engineering, Automatic Control, and Applied Physics in the ETSIDI-UPM, where he has been an Associate Professor since 2019. Since 2017, he is member of the research group named Low and High-Voltage Networks and Installations (Redes e instalaciones de baja y alta tensión, RIBAT). Besides, he worked as Assistant to the Director for International Mobility (Erasmus+ School coordinator) (2017-2020). Since 2020, he is Vice-dean of Economic Affairs and Planning at ETSIDI-UPM.

Since 2014, he works as international researcher in Electrical Engineering field collaborating with international researchers and universities all around the world. Since 2018, he is member of the Doctoral Program at ETSIDI-UPM. His main research interest areas are:

  • Lifespan estimation of electrical insulation systems
  • Modelling electrical insulation weaknesses in solid dielectrics such as polymers
  • Study of liquid dielectrics used in power transformers
  • Partial discharges measurements and analysis for condition monitoring of power equipment
  • Antennas and sensors for electromagnetic acquisitions
  • Renewable energy integration in the grid and its application for feeding electrical drives

Additional information:

Google Scholar: http://scholar.google.com/citations?user=gpCF5_gAAAAJ&hl=e

Researchgate: https://www.researchgate.net/profile/Ricardo_Albarracin

Mejora continua en el proceso de internacionalización de la ETS de Ingeniería y Diseño Industrial (ETSIDI) de la Universidad Politécnica de Madrid (UPM)

En un mundo global, es necesario que los estudiantes adquieran competencias transversales que les permitan trabajar en equipos multidisciplinares con un gran rendimiento y desempeño. En la Escuela Técnica Superior de Ingeniería y Diseño Industrial (ETSIDI) de la Universidad Politécnica de Madrid (UPM), entendemos que nuestros egresados deben adquirir dichas competencias. Por ello apostamos día a día por la internacionalización de nuestra Escuela, creando oportunidades para que nuestros estudiantes tengan la posibilidad de adquirir experiencias personales enriquecedoras para ellos y, en consecuencia, para la sociedad a través de la realización de una movilidad o bien compartiendo espacios e inquietudes con estudiantes extranjeros que estudian en nuestra Escuela. En este trabajo, se presentan los resultados de movilidad de la ETSIDI en los últimos cinco años, así como información sobre las solicitudes de becas Erasmus+ para el curso 2018/19.  El análisis de esta información, nos ha permitido establecer algunas pautas para mejorar la internacionalización de nuestra Escuela