Results 11 to 20 of about 2,310,681 (269)

Research on 3‐D total electric field of crossing high voltage direct current transmission lines based on upstream finite element method

High Voltage, 2021
The ongoing large‐scale construction of ultra high voltage direct current projects in China makes the crossing of two high voltage direct current (HVDC) lines inevitable.
Xiaoqian Ma, Li Xie, Kun He, Jiayu Lu
doaj   +1 more source

Transmission Line Fault Diagnosis Method Based on Improved Multiple SVM Model

IEEE Access, 2023
The accurate diagnosis of transmission line fault types is a prerequisite for quickly removing faults and restoring power supply, as well as the key to effectively reducing user economic losses, ensuring stable operation of the power system.
Peichuan Sun, Xuefei Liu, Meng Lin, Jie Wang, Tao Jiang, Yibo Wang   +5 more
doaj   +1 more source

Research on Reactor Condition Evaluation Method Based on Acoustic Vibration Characteristic Parameters and Weight Factors [PDF]

E3S Web of Conferences, 2021
Compared with the traditional reactor abnormal state detection method, the acoustic vibration detection method combines the advantages of acoustic detection and vibration detection, which has the advantages of simple installation, strong portability and ...
Jia Peng-fei, Gao Shu-guo, Zhang Xing-hui, Meng Ling-ming, Li Li-hua, Yang Yang   +5 more
doaj   +1 more source

Study on switching principle of thyristor assisted arc extinguishing hybrid OLTC [PDF]

E3S Web of Conferences, 2021
Thyristor assisted arc extinguishing hybrid on load tap changer has the advantages of both mechanical switch and thyristor switch. It has strong ability to withstand overload, over-current and overvoltage, high reliability, small maintenance workload and
Yin Yu, Gao Fei, Shi Fei, Jia Peng-Fei, Ding Ben-Ping, Hao Lu-Ning, Zhang Lei, Liu Chao   +7 more
doaj   +1 more source

High current field test of impulse transient characteristics of substation grounding grid

The Journal of Engineering, 2018
It is significant to research the impulse characteristics of substation grounding grid for its optimal design and safe and stable operation. In order to obtain the impulse transient characteristics of substation grounding grid under lightning impulse ...
Xuefang Tong, Xiaohui Dong, Bo Tan
doaj   +1 more source

Depth hole filling and optimizing method based on binocular parallax image

IET Control Theory & Applications, 2023
Environment perception is one of the most vital function for autonomous robots while performing complex tasks in dynamic environment. In binocular stereo vision algorithm, the calculation of disparity image depends on matching algorithm, and the ...
Xiaoxiang Han, Qingmiao Chen, Qinyong Ma, Xiaoliang Yang, Hongyue Men, Yue Su, Xiaozhuang Tian   +6 more
doaj   +1 more source

Enhanced Fault-Tolerant Robust Deadbeat Predictive Control for Nine-Level ANPC-Based Converter

IEEE Access, 2022
Deadbeat model predictive control (DB-MPC) is one of the advanced promising control methods for power converters thanks to its simplicity, high steady-state performance and fast dynamic response.
Ibrahim Harbi, Mostafa Ahmed, Marcelo Lobo Heldwein, Ralph Kennel, Mohamed Abdelrahem   +4 more
doaj   +1 more source

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

High Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng, Jiangang Bi, Jiangang Bi, Wenzhi Chang, Yuan Xu, Xiaohua Pan, Xianwei Ma, Shuai Chang   +7 more
doaj   +1 more source

Estimation of Critical Resistive Leakage Current of polymer housed ZnO surge arrester by electro-thermal modelling

Journal of Electrical Systems and Information Technology, 2018
In this study, a MATLAB/Simulink software based electro-thermal model of the polymer housed, gapless, 60 kV ZnO surge arrester is used for estimating the ‘ Critical Resistive Leakage Current (CRLC)’.
Likitha S., Kanyakumari M., Jithin Pauly P., Shivakumara Aradhya R. S., Vasudev N.   +4 more
doaj   +1 more source

Discrete-time deadbeat control for STATCOMs based on dq reference frame: a high-speed, tuning-free strategy for reactive current regulation

Frontiers in Energy Research
The increasing penetration of distributed generation and the evolving requirements of smart grids have heightened the demand for fast, accurate, and robust reactive power control in Static Synchronous Compensators (STATCOMs). While proportional-integral (
Haiyang Liang, A. Minfu, Yanbin Zhang, Yi Zhang, Shiguang Zhan, Yunlong Zhang, Yiwen Zhang, Zhenhua Tian   +7 more
doaj   +1 more source