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Xigang Liu, Jian Zhang, Yiqi Hu, Jiao Liu, Shijun Ding, Gaowen Zhao, Yang Zhang, Jiawei Li and Zhibao Nie
The construction of transformer substations in transmission lines is a systematic, technical, and complex project with the need for numerous materials and resources. Under the development of the green economy, the requirements for energy conservation and...
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Kihong Chun, Dongwoo Song and Kisung Kim
Most electrical transmission lines are located in forests, and currently in South Korea, deregulation has allowed various structures to be built on the ground below transmission lines. Events of fires occurring below high-voltage transmission lines can l...
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Faroq Razzaz, Saud M. Saeed and Majeed A. S. Alkanhal
In this paper, ultra-wideband bandpass filters using tapered transmission line resonators are presented. The proposed filters are based on short-circuited tapered transmission line stubs. The use of tapered transmission resonators resulted in a noticeabl...
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Soyeong Lee and Yong Bae Park
In this paper, a miniaturized very-high frequency (VHF) band antenna using both top and bottom meander lines is proposed. To design a compact size antenna in the VHF band, a Composite Right/Left-Handed (CRLH) transmission line is applied to antenna struc...
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Francisco-Javier Moreno-Marimbaldo and Miguel-Ángel Manso-Callejo
Any artificial infrastructure built in a territory causes changes in its environment, especially when it is a question of large or extensive infrastructures such as high-voltage transmission lines (HVTLs). Such changes are perceived unevenly by the diffe...
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Khalid Salmi,Hamid Magrez,Hanane Sefraoui,Abdelhak Ziyyat
Pág. pp. 78 - 88
The teaching of transmission line theory in electrical engineering courses must be tailored to an audience which is increasingly reluctant to adhere to abstract disciplines. In our opinion, the best solution to make transmission line courses more attract...
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Hector Silvio LlamoLaborí
Pág. 35 - 41
En el Sistema Electro Energético Nacional (SEN) existen líneas de transporte de energía eléctrica conectadas en serie que, por tramos, poseen diferentes datos. Su representación en los programas para calcular flujos de carga, cortocircuitos y estabilidad...
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Milton M. Herrera, Isaac Dyner, Federico Cosenz
Pág. 309 - 319
Climate variability has been the main driver for renewables in the Brazilian electricity market. This article analyzes the vulnerabilities of the dependence on hydropower in renewable energy production due to climate variation, as well as wind power pene...
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Xingliang Jiang, Yunfeng Xia, Jianlin Hu, Zhijin Zhang, Lichun Shu and Caxin Sun
During their long-term outdoor field service, overhead transmission lines will be exposed to strikes by lightning, corrosion by chemical contaminants, ice-shedding, wind vibration of conductors, line galloping, external destructive forces and so on, whic...
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Qi Zhang, Minzhen Wang, Yongsheng Yang, Xinheng Wang, Entie Qi and Cheng Li
Due to the barely resonant earthed system used in the transmission line, it is more challenging to identify faults at a 66 kV voltage level because of insufficient fault identification techniques. In this paper, a 66 kV transmission line fault identifica...
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Peter Krammer, Marcel Kvassay, Ján Moj?i?, Martin Kenyeres, Milo? Ockay, Ladislav Hluchý, Lubo? Pavlov and Lubo? Skurcák
This paper addresses the regression modeling of local environmental pollution levels for electric power industry needs, which is fundamental for the proper design and maintenance of high-voltage transmission lines and insulators in order to prevent vario...
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Li Huang, Bo Tang, Xingfa Liu and Jianben Liu
With the development of ultrahigh-voltage transmission lines in China, the reradiation interference caused by the steel tower used in ultrahigh-voltage transmission becomes increasingly aggravating for nearby radio stations. In this paper, using the mult...
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Han Li, Yiqun Dong, Yunxiao Liu and Jianliang Ai
In recent years, unmanned aerial vehicles (UAV) have been increasingly used in power line inspections. Birds often nest on transmission line towers, which threatens safe power line operation. The existing research on bird?s nest inspection using UAVs mai...
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Chuanyang Liu, Yiquan Wu, Jingjing Liu, Zuo Sun and Huajie Xu
Insulator fault detection is one of the essential tasks for high-voltage transmission lines? intelligent inspection. In this study, a modified model based on You Only Look Once (YOLO) is proposed for detecting insulator faults in aerial images with a com...
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Ramunas Deltuva and Robertas Lukocius
A high-voltage AC double-circuit 400 kV overhead power transmission line runs from the city of Elk (Poland) to the city of Alytus (Lithuania). This international 400 kV power transmission line is potentially one of the strongest magnetic field-generating...
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Photovoltaic (PV) power stations tend to have a relatively weak infeed characteristic, unlike conventional synchronous generators. The limited overcurrent capability of power electronic devices and the controllability of grid-connected inverters mean tha...
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Shimin Xue, Jie Lian, Jinlong Qi and Boyang Fan
Flexible direct current (DC) transmission network technology is an effective method for large capacity clean energy access to power grids, but the DC short-circuit fault detection for it is a difficult problem. In this paper, the pole-to-ground fault tra...
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O. O. Hololobova,V. I. Havryliuk,M. O. Kovryhin,S. Yu. Buriak
Pág. 17 - 28
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Ceyhun Karpuz, Mehmet Cakir, Ali Kursad Gorur and Adnan Gorur
In this paper, new single/double-layer N-way Wilkinson power dividers (WPDs) were designed by using slow-wave structures such as narrow-slit-loaded and meandered transmission lines. For size reduction, the slit-loaded and meandered lines were used instea...
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Cui Tang, Xianggen Yin and Zhe Zhang
Current differential protection is the main protection of transmission lines which include multi-circuit lines on the same tower, and whose sensitivity and reliability of differential protection is mainly affected by the distributed capacitive current. F...
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