Results 181 to 190 of about 3,398 (227)

Suppressing resonance in transformer winding under very fast transient overvoltage

2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), 2016
This paper presents a new method for suppressing internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage (VFTO) in the GIS. Internal resonance within the transformer windings will take place if one of VFTO frequencies matches with the power transformer natural frequency.
Mehdi Babaei, A. Abu-Siada, Maziar Babaei   +2 more
openaire   +1 more source

Suppression of abnormal overvoltages on an HVDC transmission system

Electrical Engineering in Japan, 1978
The abnormal overvoltage characteristics of an HVDC transmission system consisting of overhead and cable power conductors and a neutral return wire are analyzed. A dc transient network analyzer is used for the analysis. Measures proposed and discussed for suppressing overvoltages are the use of reverse biased diodes and damping circuits.
openaire   +1 more source

Suppression of lightning‐induced overvoltages by distribution line surge arresters

Electrical Engineering in Japan, 1996
AbstractThe primary aim of surge arresters in power distribution lines is to protect lines and equipment from the voltage induced by nearby lightning strokes. To further improve power systems, methods to protect distribution lines against direct lightning strokes are still needed. An effective measure against direct lightning strokes is to increase the
Nobuyuki Fujiwara, Tsukasa Yoneyama, Yoshiyuki Hamada, Tsutomu Yokota, Akira Asakawa, Tetsuro Shimomura, Koichi Yamaoka, Shinji Ishibe   +7 more
openaire   +1 more source

A novel three-phase unbalanced overvoltage suppression method for distribution network

2017 China International Electrical and Energy Conference (CIEEC), 2017
Aiming at suppressing three-phase unbalanced overvoltage in distribution network, a new suppression method was proposed in this paper. The PWM active inverter is used to inject a current with the amplitude and phase easily obtained into the neutral point of distribution network.
Yuling Liu, Xiangjun Zeng, Duohong Chen, Zongjie Liu, Xiangdong Zhang, Xiangzhe Wang   +5 more
openaire   +1 more source

Active voltage control of SiC-SIT circuit breakers for overvoltage suppression

2013 IEEE Energy Conversion Congress and Exposition, 2013
400V DC distribution systems have attracted much attention recently as the next generation power distribution systems for data centers. For the reliability of these networks, the development of high speed DC circuit breaker for overcurrent protection is essential.
Bao Cong Hiu, Toru Saito, Yukihiko Sato, Yasunori Tanaka, Akio Takatsuka, Akira Matsumoto   +5 more
openaire   +1 more source

Analysis of Switching Overvoltage and Suppression Measures in UHV Transmission Lines

Canadian Journal of Electrical and Computer Engineering, 2019
As the ultrahigh-voltage (UHV) projects are rapidly developing, it is necessary to investigate the problems involved in overvoltage and insulation, thereby providing a technical basis for future UHV projects. The switching overvoltage of closing no-load lines was simulated and analyzed here using two kinds of typical UHV network structures: the power ...
Han Yanan, Han Bin, Xiang Zutao
openaire   +1 more source

Temporary overvoltage suppression in half-wavelength transmission lines during asymmetric faults

Electric Power Systems Research, 2020
Abstract This paper approaches the principal electric characteristics of half-wavelength transmission lines and possible voltage transients resulted from asymmetric faults. Although this non-conventional AC transmission technique presents some attractive advances for electric power transmission through long distances, when compared to the well ...
Felipe Proença Albuquerque, Ronaldo F. Ribeiro Pereira, Eduardo C. Marques Costa, Luisa H. Bartocci Liboni   +3 more
openaire   +1 more source

Study on Submarine Cable Opening Overvoltage Modeling and Its Suppression Technology

2019 IEEE 3rd Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC), 2019
Capacitive components of the power system are energy storage components, when the operation or failure to change its working state, there will be a transition process. During the transition, since the power supply continues to supply energy, and the magnetic energy stored in the inductor translates into a capacitance in the form of electrostatic field ...
Guo Mingxing, Zhang Mengyao, Li Yan, Zhang Lei, Ye Rong, Huang Ruanming   +5 more
openaire   +1 more source

Mechanism of Overvoltage and Strategies of Overvoltage Suppression for UHVDC Systems Powered by Renewable Energy

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2022
Ying Xu, Xuan Li, Ziyu Guo, Zijian Gao
openaire   +1 more source

Overvoltage Suppression in Half-Wavelength Transmission Systems using Line Surge Arresters

2019 International Symposium on Lightning Protection (XV SIPDA), 2019
The principal electric characterstics of half-wavelength transmission lines are discussed taken into account possible voltage transients resulted from asymmetric faults. Although this non-conventional technology has some attractive advances for electric power transmission through long distances, if compared to well-established HVDC and HVAC systems ...
Felipe Proença, Pereira Ronaldo F. R., Costa Eduardo C. M., Luisa Helena B. Liboni   +3 more
openaire   +1 more source