A Review of Traditional Helical to Recent Miniaturized Printed Circuit Board Rogowski Coils for Power-Electronic Applications

Shi, Yafei; Xin, Zhen; Loh, Poh Chiang; Blaabjerg, Frede

doi:10.1109/tpel.2020.2984055

Cited by 59 publications

(10 citation statements)

References 59 publications

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“…The conductor cable is encircled by the toroid to measure the current. Many devices were developed using PCB substrates for power electronic applications as current sensors [ 48 , 49 , 50 ]. A PCB-base Rogowski coil can be seen in Figure 1 C [ 38 ].…”

Section: Printed Circuit Boards For Electronics Sensors and Actuatorsmentioning

confidence: 99%

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Perdigones

Quero

2022

Micromachines

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This paper describes the fabrication opportunities that Printed Circuit Boards (PCBs) offer for electronic and biomedical engineering. Historically, PCB substrates have been used to support the components of the electronic devices, linking them using copper lines, and providing input and output pads to connect the rest of the system. In addition, this kind of substrate is an emerging material for biomedical engineering thanks to its many interesting characteristics, such as its commercial availability at a low cost with very good tolerance and versatility, due to its multilayer characteristics; that is, the possibility of using several metals and substrate layers. The alternative uses of copper, gold, Flame Retardant 4 (FR4) and silver layers, together with the use of vias, solder masks and a rigid and flexible substrate, are noted. Among other uses, these characteristics have been using to develop many sensors, biosensors and actuators, and PCB-based lab-on chips; for example, deoxyribonucleic acid (DNA) amplification devices for Polymerase Chain Reaction (PCR). In addition, several applications of these devices are going to be noted in this paper, and two tables summarizing the layers’ functions are included in the discussion: the first one for metallic layers, and the second one for the vias, solder mask, flexible and rigid substrate functions.

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Section: Printed Circuit Boards For Electronics Sensors and Actuatorsmentioning

confidence: 99%

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Perdigones

Quero

2022

Micromachines

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“…As the foundation of the modern information industry, PCB is widely used in various high-end equipment manufacturing fields such as computers, communication electronic equipment and military systems [1,2]. As an important carrier of electrical connection and support, the quality of PCB has great influence on the stability and safety of various high-end equipment products [3].…”

Section: Introductionmentioning

confidence: 99%

“…we record the effects of three different feature fusion methods under 5-shot and 10-shot settings (1). The N feature maps extracted from the feature extraction part BI are directly input into the reweighted module and converted into reweighting vectors.…”

mentioning

confidence: 99%

Few-Shot PCB Surface Defect Detection Based on Feature Enhancement and Multi-Scale Fusion

2022

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In printed circuit board (PCB) defect detection, it is difficult to collect defect samples, and the detection effect is poor due to the lack of data. On the basis of the few-shot learning method, a few-shot PCB defect detection model is proposed. This model introduces feature enhancement module and multiscale fusion module. The feature enhancement module based on the improved convolution block attention module (CBAM) can highlight the key areas of the received feature maps and suppress the interference of useless information. Aiming at the small size of PCB defects, a multi-scale feature fusion strategy is proposed. It can extract multi-scale feature maps of PCB and fuse them into a high-quality feature map containing different scale information, which can improve the detection precision of the model for small object defects. A large number of experiments on PCB dataset show that our few-shot PCB defect detection model outperforms state-of-the-art methods under different shot settings (k=1,2,3,5,10,30). Notably, the proposed model can take into account both detection efficiency and precision, which means it has high practical application value.INDEX TERMS PCB defect detection, few-shot learning, feature enhancement, multi-scale fusion.

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“…A Hall-Effect-based sensor was applied to assess the evolution of partial discharges by the current patterns in [13]. One of the most traditional topologies is the Rogowski coils (RC), which are widely applied in the industry to perform current measurements [14]. This type of sensor has a toroidal core wound by wires being the target of several researches.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Rogowski Coils for Measurement of Full Discharges in Power Transformers

Riehl

Castro

Fraga

et al. 2021

The 8th International Electronic Conference on Sensors and Applications

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Science and industry have sought to develop systems aiming to avoid total failures in power transformers since these machines can be working under overloads, moisture, mechanical and thermal stresses, among others. These non-conformities can promote the degradation of the insulation system and lead the transformer to total failure. In the incipient stages of these faults, it is common to detect Full Discharges (FDs), which are short circuits between degraded coils. Therefore, several techniques were developed to perform FD diagnosis using UHF, acoustics, and current sensors. In this scenario, this article presents a mathematical model for Rogowski coils and compares two different types of cores: Ferrite and Teflon. For this purpose, FDs were induced in an oil-filled transformer. The sensitivity and frequency response of the Rogowski coils were compared. This analysis was achieved using the Power Spectrum Density (PSD) and the energy of the acquired signals. Additionally, the Short-Time Fourier Transform (STFT) was applied to detect repetitive discharges. The results indicated that the Ferrite core increases the sensitivity by 50 times in the frequency band between 0 and 1 MHz. However, the Teflon core showed higher sensitivity between 5 and 10 MHz.

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A Review of Traditional Helical to Recent Miniaturized Printed Circuit Board Rogowski Coils for Power-Electronic Applications

Cited by 59 publications

References 59 publications

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Few-Shot PCB Surface Defect Detection Based on Feature Enhancement and Multi-Scale Fusion

Assessment of Rogowski Coils for Measurement of Full Discharges in Power Transformers

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