Results 91 to 100 of about 577 (206)

Research and application of UHV power transmission in China

High Voltage, 2018
The power demand increases rapidly in China; however, the areas of huge power demands are of long distance from most areas of abundant energy resource in the country. Therefore, China put in great effort to develop
Yinbiao Shu, Weijiang Chen
doaj   +1 more source

Coordinated preventive control strategy for transient overvoltage suppression in hybrid AC/DC sending-side systems

As a predominant issue within line-commutated converters-based high voltage direct current (DC) transmission systems, commutation failure may trigger transient overvoltage problems and the tripping of large-scale renewable generation sets in hybrid AC/DC
Tao Ding, Boyu Qin, Hongzhen Wang, Peicheng Chen, Zhe Zhang   +4 more
core   +1 more source

Overvoltage analysis and suppression for the power collection system in the far-offshore wind farm with VSC-HVDC grid connection

电力工程技术
At present, the related research on the internal overvoltage of the power collection system is mostly about the offshore wind farms connected to the grid through high voltage AC transmission lines, but the far-offshore wind farms that are connected to ...
Wenjing CHENG, Ru'an DING, Tiebing LU
doaj   +1 more source

The study of design and harmonic suppression for 800 kV EHV MSCR in engineering applications

, 2017
Purpose The purpose of this paper is to solve the reactive power adjustment and the overvoltage suppression problems in the extra high voltage (EHV) long distance grid, which often appears transient overvoltage, light load loss and other issues ...
Baodong Bai, Qingpeng Wang, Zhen An, Dezhi Chen   +3 more
core   +1 more source

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load ...
Ye Cao, Song Xiao, Yujun Guo, Guangning Wu, Zijing Wang, Guoqiang Gao, Puyang Liu, Jie Yu, Chuanming Sun, Jiancheng Liu, Hao Hou, Zheng Chen, Zhizong Ye, Yuhui Zhang   +13 more
core   +1 more source

A Review of Mitigation Methods for Overvoltage in Long-Cable-fed PWM AC Drives

, 2011
The phenomenon of overvoltage at motor terminals in long-cable-fed PWM AC drives poses a severe stress on motor insulation systems. The overvoltage is typically caused by the high change rate of the inverter output voltage (dv/dt) and the surge impedance
Zhang, Peng, He, Jiangbiao, Sizov, Gennadi Y., Demerdash, Nabeel   +3 more
core  

Algorithm of Computer Model Realization of Ferroresonance Overvoltages and Their Suppression at Asymmetric Regimes of Power Transmission Lines

, 2004
The paper contains results of investigations pertaining to ferroresonance currents. These investigations have been carried out by means of computer modeling of incomplete-phase regime of PTL with the purpose to select criteria for starting devices which ...
A. R. Babayeva, A. M. Gashimov, E. V. Dmitriyev, I. R. Pivchik   +3 more
core   +1 more source

Study on Formation and Control of Resonance Overvoltage of Overhead Contact System in Huaihua Railway Hub Area

机车电传动, 2020
Aiming at the accidents of high-voltage electrical equipment in electric locomotive such as burn out of resistance-capacity absorption device, explosion damage of arrester, DC over-voltage of converter led by overhead line resonant overvoltage happening ...
Limin FENG
doaj  

A Smart Grid Overvoltage Identification System Associated with Partial Discharge Signal and Dielectric Loss Detection. [PDF]

Sensors (Basel), 2023
Chen G, Zhu Y, Meng Z, Fang W, Xie W, Xu M, Li W.   +6 more
europepmc   +1 more source

Analyses on an electronic voltage transformer's failure by its resonance with very fast transient overvoltage and suppression

As voltage measuring devices are widely used in the high voltage power system with a primary‐secondary‐fusion structure, electronic voltage transformers are directly connected to the primary conductor and would face much more serious electromagnetic ...
Houda Zhu, Linshan Han, Hongbin Li, Qing Chen, Yue Tong, Yang Jiao   +5 more
core   +1 more source