Research on antenna for detecting the corona discharge of transmission line

Xia, Yunfeng; Song, Xinming; Jia, Zhidong; Wang, Xiaohao; Qi, Jinfeng; Xu, Zheng

doi:10.1049/joe.2018.8392

Cited by 6 publications

(3 citation statements)

References 17 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, monitoring and localization accuracy tend to be adversely affected because of noises and interferences superimposed with the RF signals, so there is a need to apply denoising algorithms [33]. RF antennas have been used to detect electromagnetic waves generated by corona and PD from transmission lines [34], switchgear [35], cables or transformers [36], among others. By using specific antenna array configurations can also locate the discharge points [18] by measuring the attenuation of the radio frequency signals [35].…”

Section: Pressure Effect On Electrical Breakdown Partial Discharges and Coronamentioning

confidence: 99%

Sensor Comparison for Corona Discharge Detection Under Low Pressure Conditions

2020

View full text Add to dashboard Cite

Low pressure environments, situate insulation systems in a challenging position since partial discharges (PDs), corona and arc tracking are more likely to develop. Therefore, specific solutions are required to detect such harmful phenomena before major failure occurrence. This paper deals with three low-cost and small-size sensing methods, i.e., a single loop antenna, a visible-UV imaging sensor and the measurement of the leakage current to detect corona in the early stage, thus anticipating the appearance of severer effects such as arc tracking or disruptive breakdown. The three studied methods can be applied for an on-line monitoring of corona activity under low pressure environments, thus being compatible with predictive maintenance approaches. This on-line monitoring can be used to develop improved electrical protection devices able to detect such effects in an initial stage, thus improving current solutions which are unable to do so. All three studied sensors give consistent linear responses within the studied pressure range, i.e., 10-100 kPa, with almost no drift. The sensitivity of the visible-UV imaging sensor is slightly lower than that of the others, but it has the advantage of directly locating the discharge points. Results presented in this paper can be very useful for the more electrical aircraft (MEA), which is forcing electrical distribution systems to operate at higher voltage levels. Due to the little experience and scarcity of published data, the experimental results presented in this paper can be valuable for a better understanding of the combined action of high voltage and low pressure environments.

show abstract

Section: Pressure Effect On Electrical Breakdown Partial Discharges and Coronamentioning

confidence: 99%

Sensor Comparison for Corona Discharge Detection Under Low Pressure Conditions

2020

View full text Add to dashboard Cite

show abstract

“…In the study of abnormal discharge in transmission equipment, based on the generation of radio frequency electromagnetic waves during discharge, the frequency range of electromagnetic waves is mainly concentrated between 200 MHz and 300 MHz. Therefore, discharge detection can be achieved through radio frequency antennas [3]. The Hilbert fractal antenna is a microstrip antenna based on the shape of Hilbert fractal geometry, which is a research hotspot [4][5].…”

Section: Introductionmentioning

confidence: 99%

Hilbert Fractal Antenna for Abnormal Discharge Detection of Transmission Equipment

Qu,

Wu,

Hei

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The safe and stable operation of the power system can ensure people’s basic electricity needs. It also plays an important role in energy security and economic development and can contribute to environmental protection and energy conservation. If there are problems in the power system, it will not only affect people’s normal life and work but also lead to power loss or waste, thereby exacerbating the impact on the environment. With the long-term operation of transmission equipment, insulation devices are aging, leading to frequent abnormal discharges and affecting the safety and stability of the power system. Therefore, timely detection and troubleshooting are necessary. When abnormal discharge occurs in transmission equipment, it will radiate radio frequency (RF) electromagnetic waves, which are mainly concentrated between 200 MHz and 300 MHz. RF antennas that can capture signals in this frequency band can be used for detection to determine whether abnormal discharge has occurred. This article uses the Hilbert fractal antenna as the research object to analyze the impact of different orders on antenna performance and optimizes the different feeding point positions of the antenna. Finally, the antenna structure for detecting abnormal discharge is obtained. By making an actual antenna and conducting experimental analysis, the discharge detection function of the designed antenna is verified.

show abstract

“…In addition, the sensitivity of conventional electromagnetic methods may be insufficient to detect PD activity at low pressures, as the amplitude of PD pulses typically decreases with pressure [ 35 ]. PD activity is typically detected using radio interference voltage (RIV) detectors, electromagnetic PD detectors, sound level meters [ 38 ] or radio frequency [ 39 ], and ultrahigh frequency antennas [ 40 , 41 ]. Surface PD activity can also be detected using optical methods [ 37 , 42 , 43 , 44 ], such as optical spectrophotometers [ 45 ], due to the ultraviolet (UV) and visible light emissions.…”

Section: Introductionmentioning

confidence: 99%

Tracking Resistance in Polymeric Insulation Materials for High-Voltage Electrical Mobility Applications Evaluated by Existing Test Methods: Identified Research Needs

Riba,

Moreno-Eguilaz,

Bogarra

2023

Polymers

View full text Add to dashboard Cite

With the increasing electrification of the transportation and mobility sectors, polymer insulation materials are inevitably exposed to harsher environments, including exposure to contamination, wide temperature ranges, operation at higher voltages and switching frequencies, and low-pressure environments. This paper reviews the tests to characterize the polymeric materials used in insulation systems for electric mobility applications, focusing on resistance to tracking. This paper also reports on the limitations of existing standard test methods and identifies the challenges and research needs to meet the increasing demands of the electric mobility industry. To this end, an evaluation of the scientific and technological state of the art is carried out through the analysis of theses, research articles, technical reports, manufacturers’ datasheets, international standards, and white papers.

show abstract

Research on antenna for detecting the corona discharge of transmission line

Cited by 6 publications

References 17 publications

Sensor Comparison for Corona Discharge Detection Under Low Pressure Conditions

Sensor Comparison for Corona Discharge Detection Under Low Pressure Conditions

Hilbert Fractal Antenna for Abnormal Discharge Detection of Transmission Equipment

Tracking Resistance in Polymeric Insulation Materials for High-Voltage Electrical Mobility Applications Evaluated by Existing Test Methods: Identified Research Needs

Contact Info

Product

Resources

About