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About

About

Claudio Floridia was born in Ancona, Italy, in 1971, completed a bachelor’s degree in physics from the University of São Paulo (1995), a master's degree in Geophysics from the Federal University of Bahia (1998), and a Ph.D. in Physics from the Federal University of Pernambuco (2003). He was a researcher at the CPQD Research and Development Center, Campinas, Brazil (2005-2023), specializing in fiber optic systems and sensors, including Bragg grating (FBG), distributed sensors, optical voltage/current sensors, and spectroscopy techniques with applications in the electrical, oil and gas, civil structures and railway transport sectors. Dr. Floridia has authored 100+ journal and conference articles, holds 23 patents (2 in the US), and has 10+ pending patents. He contributed to CIGRE Brazil's Low Power Instrument Transformers group (2020-2021). He is currently an assistant researcher at the Center for Applied Photonics - INESCTEC in Porto, Portugal

Interest
Topics
Details

Details

  • Name

    Claudio Floridia
  • Role

    Assistant Researcher
  • Since

    01st July 2023
  • Nationality

    Itália
  • Centre

    Applied Photonics
  • Contacts

    +351220402301
    claudio.floridia@inesctec.pt
001
Publications

2023

Multi-Parameter Optical Monitoring Solution Applied to Underground Medium-Voltage Electric Power Distribution Networks

Authors
Bassan, FR; Rosolem, JB; Floridia, C; Penze, RS; Aires, BN; Roncolatto, RA; Peres, R; Júnior, JRN; Fracarolli, JPV; da Costa, EF; Cardoso, FH; Pereira, FR; Furoni, CC; Coimbra, CM; Riboldi, VB; Omae, C; de Moraes, M;

Publication
Sensors

Abstract
This work presents a multi-parameter optical fiber monitoring solution applied to an underground power distribution network. The monitoring system demonstrated herein uses Fiber Bragg Grating (FBG) sensors to measure multiple parameters, such as the distributed temperature of the power cable, external temperature and current of the transformers, liquid level, and intrusion in the underground manholes. To monitor partial discharges of cable connections, we used sensors that detect radio frequency signals. The system was characterized in the laboratory and tested in underground distribution networks. We present here the technical details of the laboratory characterization, system installation, and the results of 6 months of network monitoring. The data obtained for temperature sensors in the field tests show a thermal behavior depending on the day/night cycle and the season. The temperature levels measured on the conductors indicated that in high-temperature periods, the maximum current specified for the conductor must be reduced, according to the applied Brazilian standards. The other sensors detected other important events in the distribution network. All the sensors demonstrated their functionality and robustness in the distribution network, and the monitored data will allow the electric power system to have a safe operation, with optimized capacity and operating within tolerated electrical and thermal limits.

2022

An Improved Solution for Simultaneous Measurement of Current and Temperature on Terfenol-D FBG Optical Sensor

Authors
Floridia, C; de Araujo Silva, A; Rosolem, JB; Bassan, FR; Penze, RS; Peres, R; Coimbra, CM; Riboldi, VB; de Moraes, M;

Publication
IEEE Sensors Journal

Abstract

2021

Techniques and Materials for Optical Fiber Sensors Sealing in Dynamic Environments with High Pressure and High Temperature

Authors
Rosolem, JB; Penze, RS; Floridia, C; Peres, R; Vasconcelos, D; Ramos Junior, MA;

Publication
Sensors

Abstract
We detail a study of the techniques and sealing materials for optical fiber sensors used in dynamic environments with high pressure (>300 bar) and high temperature (>300 °C). The sealing techniques and materials are the key for the robustness of sensors in harsh dynamic environments, such as large combustion engines. The sealing materials and techniques studied in this work are high-temperature epoxies, metallic polymer, metallic solders, glass solder, cement, brazing and electroless nickel plating. Because obtaining high temperature simultaneously with high pressure is very difficult in the same chamber in the laboratory, we developed a new and simple method to test sealed fibers in these conditions in the laboratory. In addition, some sensors using the materials tested in the laboratory were also field tested in real thermoelectric combustion engines. The study also discusses the methods of fabrication and the cost-benefit ratio of each method.

2021

Study of a Current and Voltage Polarization Sensor Network

Authors
Silva, AdA; Floridia, C; Rosolem, JB;

Publication
Sensors

Abstract
Sensors based on polarization are suitable for application in power grids due to their excellent characteristics, such as high electrical insulation, non-magnetic saturation, oil-free, no risk of explosive failures, and high bandwidth. Utility companies are incorporating new technologies that are driving the evolution of electrical systems. Thus, it is interesting to evaluate the possibility of using polarization sensors in a network configuration. In this work, we present an experimental study of a current and voltage polarization sensor network applied to a medium voltage distribution grid. The current sensor is based on the Faraday effect, and the voltage sensor uses the Pockels effect. Both sensors use a 90° polarization degree between the two output ports to compensate for the various impairments on the measurements by applying the difference-over-sum. The network uses a DWDM topology centered at the 1550 nm range, and both current and voltage sensors in this work used this spectral band. We evaluated the sensor node in terms of accuracy according to IEC standard 61869-10 and IEC standard 61869-11. Considering that an important application of this sensor network is in the aerial cable of medium voltage networks, sensor node accuracy was also estimated in the presence of cable vibration. The calculated power budget of the proposed network indicates that reaching ten nodes of current and voltage sensors in a 10 km optical link is possible, which is enough for a medium urban voltage distribution network.

2021

Dynamic Effects of Temperature on FBG Pressure Sensors Used in Combustion Engines

Authors
Rosolem, JB; Penze, RS; Floridia, C; Bassan, FR; Peres, R; Costa, EFd; de Araujo Silva, A; Coral, AD; Junior, JRN; Vasconcelos, D; Junior, MAR;

Publication
IEEE Sensors Journal

Abstract