Design and Application of a Metamaterial Superstrate on a Bio-Inspired Antenna for Partial Discharge Detection through Dielectric Windows

Xavier, George Victor Rocha; Serres, Alexandre; Costa, Edson Guedes da; Oliveira, Adriano Costa de; Nobrega, L. A. M. M.; Souza, Vladimir Cesarino de

doi:10.3390/s19194255

Cited by 25 publications

(18 citation statements)

References 65 publications

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Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

“…The application of gain enhancement techniques in the design of UHF bio-inspired PMA sensors was explored in [49] in order to improve its PD detection sensitivity. For this purpose, the authors in [49] proposed the This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/ This article has been accepted for publication in a future issue of this journal, but has not been fully edited.…”

Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

“…Finally, the PD signals detected by the PMA-metamaterial set presented higher voltage levels than those simultaneously detected by the reference PMA, corroborating the sensitivity enhancement through the application of a metamaterial superstrate. The methodology for the metamaterial superstrate design and tests (laboratory and field) adopted in [49] is summarized in Fig. 7.…”

Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

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Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

et al. 2021

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In this article, we provide a comprehensive survey on the most relevant research in the area of detection, classification and location of partial discharge (PD) sources using the radiometric or ultra high frequency (UHF) method, focusing mainly on the works related to the use of antennas. To the best of the authors knowledge, this is the first review paper that focuses on the application of antennas based on UHF method in the complete diagnosis of PD. Specifically, we first present the main contributions to the development and optimization of UHF sensors for application in the detection of PD sources. Second, articles that used the UHF method to identify different types of PD in high voltage equipment are described. Finally, the main contributions regarding the location of sources of defects using the radiometric method are presented. Summary of works in the area of UHF detection sensors, PD classification and PD location, with their respective contributions, are shown. Finally, research trends, challenging and open issues are discussed. The purpose of this article is to provide important information about the complete diagnosis of PD, which could be used to guide the development of more efficient techniques in this research area.

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Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

Section: Uhf Sensors Applied To Pd Monitoring In High Voltage Equipmentmentioning

confidence: 99%

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Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

et al. 2021

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“…In recent times, antenna researchers begun to look in the direction of bioinspired structure such as leave shape [4][5][6][7][8], the physical shape of animals [9], or internal organ shape of the animals [10] which has been explored. Authors in [4,7] proposed a bioinspired UWB antenna based on Igna Marginata leaf. e antenna proposed in [7] has dimension of 40 × 30 mm 2 and is built on an FR4 substrate of height 1.5 mm.…”

Section: Introductionmentioning

confidence: 99%

Compact Vitis vinifera-Inspired Ultrawideband Antenna for High-Speed Communications

Abolade¹,

Konditi

Dharmadhikary

2021

International Journal of Antennas and Propagation

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A new compact ultrawideband (UWB) bioinspired antenna is presented in this work. The proposed antenna consists of a vine leaf (Vitis vinifera) shape as the radiating patch, defected ground structure (DGS), and a vertical rectangular slot (VRS) on the ground plane. The vine leaf shape is realized from a circular patch (initiator) in this work. The proposed antenna is built on an FR4 substrate with a dielectric constant of 4.4, a loss tangent of 0.02, and a thickness of 1.5 mm. The total dimension of the proposed bioinspired antenna is 35 × 27.6 mm2. The proposed antenna has a fractional bandwidth of 115.43% (3.7 GHz–13.8 GHz) at 10 dB return loss, a radiation efficiency between 78% and 97%, a peak gain of 6.7 dB, and a stable radiation pattern. The contributions of this work to the existing literature are as follows: (i) the investigation of a vine leaf shape for UWB antenna application; (ii) the adaptation of the conventional monopole patch antenna design equation to determine the lower edge frequency (LEF) of an arbitrary shape monopole antenna; (iii) the presentation of a compact UWB antenna with high fractional bandwidth compared with recent works in the literature, and (iv) the use of FR4 substrate to achieve a peak radiation efficiency of 97% with a compact structure.

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“…However, another factor is the design of the UHF sensor itself. Several UHF sensor designs with various strengths have been developed for use in transformers and gas-insulated switchgear (GIS) [ 11 , 12 , 13 , 14 ]. In this contribution, two popular sensor designs, which are commercially available, are studied.…”

Section: Introductionmentioning

confidence: 99%

Study of the Influence of Winding and Sensor Design on Ultra-High Frequency Partial Discharge Signals in Power Transformers

Beura

Beltle

Tenbohlen

2020

Sensors

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Ultra-high frequency (UHF) partial discharge (PD) measurements in power transformers are becoming popular because of the advantages of the method. Therefore, it is necessary to improve the basic understanding of the propagation of signals inside the transformer tank and the factors that influence the sensitivity of the measurement. Since the winding represents a major obstacle to the propagation of the UHF signals, it is necessary to study the effect of winding design on signal propagation. Previous research activities have studied these effects using simplified models, and it is essential to consider the complexity of propagation in a complete transformer tank. Additionally, the quality of UHF PD measurements depends, to a large extent, on the sensitivity of the UHF sensors. In this contribution, a simulation model consisting of a simple, grounded enclosure with multiple winding designs is used to study the propagation characteristics of UHF signals when an artificial PD source is placed inside the winding. After analysis of the results, the winding designs are incorporated in an existing and validated simulation model of a 420 kV power transformer and analyzed to observe the influence in a more complex structure. Two commonly used sensor designs are also used in the simulation model to receive the signals. In all cases, the propagation and signal characteristics are analyzed and compared to determine the influence of the winding and sensor design on the UHF signals. It is found that the level of detail of winding design has a significant impact on the propagation characteristics. However, the attenuation characteristics of the UHF signals received by the two sensor designs are similar, with the electric field distribution around the sensor being the key difference.

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Design and Application of a Metamaterial Superstrate on a Bio-Inspired Antenna for Partial Discharge Detection through Dielectric Windows

Cited by 25 publications

References 65 publications

Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

Compact Vitis vinifera-Inspired Ultrawideband Antenna for High-Speed Communications

Study of the Influence of Winding and Sensor Design on Ultra-High Frequency Partial Discharge Signals in Power Transformers

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