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Simulation and Analysis of Induced Current of HV Parallel Reactor Disconnector for 500kV Double Circuit Line on the Same Tower [PDF]

E3S Web of Conferences, 2020
The 500 kV double circuit line with HV parallel reactors has a long outage time in ice melting operation.In this paper, we discussed the possibility of directly switching HV parallel reactor disconnector under the cold standby state,in order to further ...
Li Haisheng, Zhang Jianquan, Fang Boyi, Liu Bin, Feng Bin   +4 more
doaj   +1 more source

Wireless Power and Signal Transmission Based on Time-sharing Multiplexing for WPT System [PDF]

E3S Web of Conferences, 2021
In wireless power transfer (WPT) systems, wireless transmission of signals is particularly important for some practical applications. An effective approach of signal and energy synchronous transmission based on time-sharing multiplexing of the same ...
Wu Xiaorui, Gong Wenlan, Xiao Jing, Chen Shaonan, Wu Ning   +4 more
doaj   +1 more source

Fault diagnosis of the HVDC system based on the CatBoost algorithm using knowledge graphs

Frontiers in Energy Research, 2023
In order to overcome the difficulty of fault diagnosis in the high-voltage direct current (HVDC) transmission system, a fault diagnosis method based on the categorical boosting (CatBoost) algorithm is proposed in this work.
Jiyang Wu, Qiang Li, Qian Chen, Nan Zhang, Chizu Mao, Litai Yang, Jinyu Wang   +6 more
doaj   +1 more source

Experimental and Analytical Study of a Proton Exchange Membrane Electrolyser Integrated with Thermal Energy Storage for Performance Enhancement

International Journal of Photoenergy, 2022
To peak carbon dioxide emissions and carbon neutrality, hydrogen energy plays a pivotal role in the energy system dominated by wind power and solar power.
Xiaodong Peng, Zhanfeng Deng, Xueying Zhao, Gendi Li, Jie Song, Danxi Liang, Xiaotong Sun, Guizhi Xu, Wei Kang, Min Liu   +9 more
doaj   +1 more source

Influence of Coil Current and Oil Film Thickness on Hopf Bifurcation of MLDSB

Energies, 2022
Magnetic-liquid double-suspension bearing (MLDSB) is composed of an electromagnetic supporting system and a hydrostatic supporting system. Due to its greater supporting capacity and stiffness, it is appropriate for middle-speed applications, overloading,
Jianhua Zhao, Hanwen Zhang, Jianlin Chen, Xiaochen Wu, Yongqiang Wang, Dianrong Gao, Yingna Liang   +6 more
doaj   +1 more source

Investigation on Low Frequency Bandgap of Coupled Double Beam with Quasi-Zero Stiffness for Power Transformer Vibration Control

Shock and Vibration, 2022
To suppress low frequency vibration and noise generated by power transformer in residential area and achieve environment protection standards, a double-beam metamaterial is proposed, which is fabricated through periodically coupling silicon steel sheet ...
Qiang He, Jingkai Nie, Yu Han, Yi Tian, Chao Fan, Guangxu Dong   +5 more
doaj   +1 more source

Research on transmission control method of tension tower hydraulic tension device based on PLC

Journal of Applied Science and Engineering, 2023
Using the traditional method to control the transmission process of the tension tower hydraulic tightening device, there is a problem of slow speed step response in the range of device operating speed from 12km/h to 32km/h.
Jinghui Zhang, Quanjun Yin, Haixing Yang, Zhongquan Jiao   +3 more
doaj   +1 more source

Calculation of inlet capacitance for long-duration induction voltage test of single-phase three-winding converter transformers

Energy Reports, 2023
The converter transformer is one of the core equipment in the high-voltage DC (HVDC) transmission project. The capacity of the converter transformer is much larger than that of an ordinary AC transformer, and its main function is to convert the AC system
Shijie Li, Jinzhuang Lv, Jiankun Wang, Jinzhou Xiong, Xinbo Zhang, Xuzhe Li   +5 more
doaj   +1 more source

Entire process of surface discharge of GIS disc-spacers under constant AC voltage

High Voltage, 2020
Surface contamination on the disc-spacers is one of the main threats to the safe operation of gas insulated switchgear (GIS) insulation. The authors’ research has confirmed the phenomena of intermittent discharge of such defects under AC constant voltage
Chenhao Zhao, Zhiguo Tang, Liangen Zhang, Deguan Wu, Hui Xia, Hongyuan Li, Kai Pan   +6 more
doaj   +1 more source

Design and Development of 4500 V Trench Gate IGBT

Zhongguo dianli, 2020
In this paper, a 4500 V trench gate IGBT chip was developed, so as to improve the single chip current density as well as to master the technology of high voltage trench gate IGBT.
Li LI, Yaohua WANG, Mingchao GAO, Jiang LIU, Rui JIN   +4 more
doaj   +1 more source