Results 111 to 120 of about 17,565 (205)

An Intelligent Frequency Control Scheme for Inverting Station in High Voltage Direct Current Transmission System

Engineering Reports
Power system stability is crucial for the reliable and efficient operation of electrical grids. One of the key factors affecting power system stability is the frequency of the alternating current (AC) system while connected with High Voltage Direct ...
Saleem, Muhammad Amir Raza, Syed Waqar Umer, Muhammad Faheem, Touqeer Ahmed Jumani, Muhammad Yameen   +5 more
doaj   +1 more source

Control Strategy and Small Signal Stability Analysis of the Direct-Drive Wind Farm Transmitted Through the HC-HVdc System Under No Synchronous Power Support Conditions

IEEE Access
The hybrid cascaded high voltage direct current (HC-HVDC) technology, which combines the advantages of the line commutated converter-based HVDC (LCC-HVDC) and the modular multilevel converter-based HVDC (MMC-HVDC) technologies, is one of the most cost ...
Qin Wang, Yongjie He, Mengyao Xu, Jincan Zeng, Binghao He, Rongfeng Deng, Xi Liu, Guori Huang, Yuanzhe Zhu, Minwei Liu   +9 more
doaj   +1 more source

Development of three phase back to back converter with current flow control using raspberry Pi microcontroller [PDF]

, 2015
A High-Voltage Direct Current (HVDC) electric power transmission system uses direct current form the bulk transmission of electrical power, in contrast with the common Alternating Current (AC) systems.
Mamat, Ibrahim
core  

Blitzeinschlagsanalyse für rückwärtige Überschläge einer Hybridleitung [PDF]

, 2015
A new method to transfer energy over short and long distances is to use hybrid lines. In this paper a lightning surge analysis for backflashovers on overhead transmission lines with one DC and three AC systems on the same tower is considered ...
Kizilcay, Mustafa, Mackow, Andrzej, Nilges, Matthias   +2 more
core  

Enhance Power Quality By Hvdc System, Comparison Technique Between Hvdc And Hvac Transmission Systems

, 2016
{"references": ["Summary of Impacts of the New Guidelines of the International Commission on Non-Ionizing Radiation Protection on Power System Operation. International Commission on Non-Ionizing Radiation Protection (INIRP). Hydro-Quebec. 1999.", "High-Voltage DC transmission \u2013 a power electronics workhouse. N.G. Ingrain. IEEE Spectrum, April 1996.
Smko Zangana, Ercelebi, Ergun
openaire   +1 more source

Suppression of continuous commutation failure in LCC-HVDC transmission based on improved virtual synchronous generator control for energy storage system

International Journal of Electrical Power & Energy Systems
Aiming at the poor voltage response characteristics of the line-committed converter-based high voltage direct current (LCC-HVDC) transmission system after the fault of the AC system at the inverter side, this paper analyzes the relationship between the ...
Dui Liu, Changqing Zou, Xiaohua Li, Bing Lin, Jietong Liu, Tao Jin   +5 more
doaj   +1 more source

Modeling and Control of Light HVDC Transmission System Based on MMC

Gong-kuang zidonghua, 2011
In view of problems of low-order harmonics in output voltage, needing filter and transformer with big volume and dynamic voltage balancing of series components of HVDC transmission system based on VSC, the paper proposed a design scheme of light HVDC ...
GUO Jia-hu, LIAO Qi-yan
doaj  

How to increase cross border transmission capacity? A case study: Belgium. [PDF]

Cross border capacity allows electric energy to be traded internationally. The electricity sector used to be vertically integrated and often state-owned. High voltage grids were generally developed within the borders of a country.
Bekaert, David, Belmans, Ronnie, D'haeseleer, William, Deketelaere, Kurt, Delarue, Erik, Delvaux, Bram, Küpper, Gerd, Meeus, Leonardo, Proost, Stef, Van Hertem, Dirk   +9 more
core  

Subsynchronous instability of HVDC transmission system.

IEEJ Transactions on Power and Energy, 1985
Masahiro Takasaki, Toshiyuki Hayashi, Yasuji Sekine   +2 more
openaire   +2 more sources

Partial discharge behavior under HVDC superimposed with transients [PDF]

, 2017
Azizian Fard, M., Farrag, M., Hepburn, D.M., Reid, A.J.   +3 more
core   +2 more sources