Results 71 to 80 of about 377 (128)

Assessment of the hazard risks on HVDC transmission networks due to lightning strikes and faults.

open access: yesPLoS ONE
HVDC systems with high voltage and direct current are suitable for reducing electricity losses, during transmission over long distances. However, HVDC lines have the highest probability of failure within a system and can be damaged by different faults or
Abdelrahman Said   +2 more
doaj   +1 more source

Study on overvoltage of hybrid LCC-VSC-HVDC transmission

open access: yesThe Journal of Engineering, 2018
Hybrid line commutation converter-voltage-source converter high-voltage direct current transmission (LCC-VSC-HVDC) power transmission has unique technical advantages, but its overvoltage study is not sufficient at present.
Dizhen Xu   +4 more
doaj   +1 more source

Virtual Synchronous Generator Control Strategy of Three Terminal Back-To-Back Voltage Source Converter Based HVDC and Its Application in Distribution Network

open access: yes发电技术, 2018
A kind of connection scheme of three-terminal back-to-back (BTB) voltage source converter based HVDC(VSC-HVDC) system in 10 kV distribution network was discussed, which can improve the reliability of power supply and restrain the circulation by the ...
Dan ZOU   +6 more
doaj   +1 more source

A fault property identification scheme for the restarting of hybrid HVDC system

open access: yesInternational Journal of Electrical Power & Energy Systems
The hybrid HVDC system will be widely used in the future. Since transient faults account for the majority of all overhead line faults, the system restart is essential to restoring the power supply of the hybrid HVDC system.
Ke Han, Yu Chen, Minghao Wen, Ruizhi Ma
doaj   +1 more source

Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links

open access: yesCSEE Journal of Power and Energy Systems
As an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Zhiqiang Song   +5 more
doaj   +1 more source

Analysis of power system transient stability with PSO-optimized distributed generation and HVDC transmission systems

open access: yesScientific Reports
The integration of distributed generation (DG) and high-voltage direct current (HVDC) facilities into a power system results in altered transient responses compared to traditional AC-based power systems. This study investigates the transient stability of
Jiyeon Jang   +3 more
doaj   +1 more source

A Hybrid Current Source Converter-Based HVDC System with Power Coordination Control for Enhanced Reactive Power Support

open access: yesApplied Sciences
HVDC technologies based on fully controlled devices offer numerous technical advantages, such as flexible active and reactive power control and black-start capability, making them highly promising for large-scale renewable energy integration and long ...
Xin Guan   +5 more
doaj   +1 more source

Analysis of Hybrid LCC-VSC HVDC Transmission Systems

open access: yes, 2018
High Voltage Direct Current(HVDC) is widely considered as an efficient and economical option for long distances transmission of electric power compared to ac transmission. Conventional HVDC transmission is based on line commutated converter(LCC). Although this mature technology has large transmission capacity, it still has some disadvantages such as ...
openaire   +2 more sources

Synthesis of hybrid models for advanced simulation of HVDC systems

open access: yesInternational Journal of Smart Grid and Clean Energy, 2014
Anton Prokhorov   +2 more
openaire   +1 more source

SFA-EMT hybrid simulation of power systems: Application to HVDC systems

open access: yesElectric Power Systems Research
Javier O. Tarazona   +2 more
openaire   +1 more source

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