A novel UHF <scp>M</scp>inkowski fractal antenna for partial discharge detection

Wang, Feng; Feng, Bin; Sun, Qiuqin; Fan, Jingmin; Liang, Fangwei; Xiao, Xuanyi

doi:10.1002/mop.30629

Cited by 20 publications

(9 citation statements)

References 17 publications

(18 reference statements)

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“…The microstrip antenna is also proposed in the literature for PD detection in the UHF domain [ 43 , 52 , 53 , 54 , 55 ]. The basic structure of the microstrip antenna is shown in Figure 4 b.…”

Section: Uhf Sensors In Partial Discharge Detectionmentioning

confidence: 99%

“…A fractal antenna is one type of microstrip antenna with distinctive performance in UHF signal coupling and can offer miniaturization and wide bandwidth. Wang et al [ 52 ] designed a Minkowski fractal antenna and found that the order of the fractal curve can significantly affect the performance of the antenna. The Hilbert fractal antenna was proposed for PD detection in [ 56 , 57 , 58 ], and it was found that the fourth-order Hilbert fractal structure shown in Figure 5 d is appropriate for multiple-resonance filter design.…”

Section: Uhf Sensors In Partial Discharge Detectionmentioning

confidence: 99%

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Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Chai

Phung

Mitchell³

2019

Sensors

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Condition monitoring of an operating apparatus is essential for lifespan assessment and maintenance planning in a power system. Electrical insulation is a critical aspect to be monitored, since it is susceptible to failure under high electrical stress. To avoid unexpected breakdowns, the level of partial discharge (PD) activity should be continuously monitored because PD occurrence can accelerate the aging process of insulation in high voltage equipment and result in catastrophic failure if the associated defects are not treated at an early stage. For on-site PD detection, the ultra-high frequency (UHF) method was employed in the field and showed its effectiveness as a detection technique. The main advantage of the UHF method is its immunity to external electromagnetic interference with a high signal-to-noise ratio, which is necessary for on-site monitoring. Considering the detection process, sensors play a critical role in capturing signals from PD sources and transmitting them onto the measurement system. In this paper, UHF sensors applied in PD detection were comprehensively reviewed. In particular, for power transformers, the effects of the physical structure on UHF signals and practical applications of UHF sensors including PD localization techniques were discussed. The aim of this review was to present state-of-the-art UHF sensors in PD detection and facilitate future improvements in the UHF method.

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Section: Uhf Sensors In Partial Discharge Detectionmentioning

confidence: 99%

Section: Uhf Sensors In Partial Discharge Detectionmentioning

confidence: 99%

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Chai

Phung

Mitchell³

2019

Sensors

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“…Monopole antenna is where different types and lengths of the monopole antenna are tested to detect the PD signals emitted from 1300 MHz to 1900 MHz range [13]. In [14], fractal antenna is designed to operate on various impedance bandwidth (narrowband, wideband, or multiband) by adjusting the antenna dimensions. In [15], the Vivaldi antenna is designed to operate from 510 MHz to 825 MHz and 950 MHz to 2 GHz.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Partial Discharge Detection of Electrical Assets Based on Electromagnetic Field Emissions

2020

IJETER

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Early detection of partial discharge (PD) in high voltage equipment allows for the necessary interventions to be taken and is essential in preventing catastrophic breakdown due to faults. PD detection may be achieved by usage of various PD detectors such as acoustic, electrical, optical, ultrasonic and UHF detection methods. This paper focuses on UHF detection method, in which the UHF antenna can be regarded as sensor to obtain the induced electromagnetic waves from the PD source. This technique uses a microstrip patch antenna to detect the PD signal within the UHF range. The microstrip patch antenna for PD detection is cost-effective, lightweight, easy to design and fabricate. A T-shaped microstrip patch antenna at the ground plane is anticipated to improve the antenna performances. The anticipated T-shaped partial ground microstrip patch antenna utilises FR4 substrate with substrate thickness, Hs = 1.6 mmand dielectric constant, εr = 4.3. The proposed antenna is simulated using CST Microwave Studio, fabricated on FR4 and validated using a vector network analyzer, to attain the desired performance. The simulation results demonstrated the following performances; -48 dB for return loss, 1.008 for voltage standing wave ratio (VSWR) and 1.951 dB gain at 500 MHz. The results from fabricated antenna showed that the proposed antenna achieved return loss of -28.83 dB with VSWR of 1.26. Results from both simulation design and fabricated antenna confirmed that the anticipated T-shaped microstrip patch antenna is suitable for PD detection at UHF range.

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“…In substation, noise is usually prevalent at lower frequency range (less than 200 MHz), which can be easily eliminated by the UHF based PD detection [9]. In [10] [6,[11][12][13], fractal antenna [14,15], Hilbert antenna [16,17], Archimedean antenna [18] and microstrip patch antenna [19][20][21]. However, most of these antennas are directional antenna.…”

Section: Introductionmentioning

confidence: 99%

A t-shaped partial ground microstrip patch antenna based UHF sensor for partial discharge detection

Azhar

Aripin

Hock

et al. 2020

IJEECS

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Continuous partial discharge (PD) monitoring and early PD detection is important in making sure the necessary preventative measures can be taken accordingly. This paper proposed a T-shaped partial ground microstrip patch antenna that is able to detect PD signal within the UHF range. The antenna was designed and simulated using CST Microwave Studio. The antenna was then fabricated using FR4 substrate material and tested for reception test. The simulation results and the analysis from the fabricated antenna confirmed that the proposed antenna able to detect PD signal at UHF range (specifically at about 500 MHz) and fulfilled the design requirements in terms of the return loss, VSWR, bandwidth and gain. Reception test had confirmed that the proposed antenna was able to detect PD signals that are located at maximum distance, ranges from 37 cm to 70 cm (depending on the PD signal strength). The proposed antenna also had succesfully detected PD occurances at 300 MHz to 700 MHz. In conclusion, the proposed T-shaped partial ground microstrip patch antenna had been successfully designed and able to detect PD signal emitted in the UHF range.

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A novel UHF Minkowski fractal antenna for partial discharge detection

Cited by 20 publications

References 17 publications

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Feasibility Study of Partial Discharge Detection of Electrical Assets Based on Electromagnetic Field Emissions

A t-shaped partial ground microstrip patch antenna based UHF sensor for partial discharge detection

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