Results 21 to 30 of about 1,581 (183)

Operation and Challenges of Multi-Infeed LCC–HVDC System: Commutation Failure, AC/DC Power Flow, and Voltage Stability

Applied Sciences, 2021
This paper presents a detailed analysis of commutation failure, AC/DC power flow, and voltage stability of multi-infeed high-voltage direct current (HVDC). The use of HVDC power transmission technology has become common in modern power systems.
Bilawal Rehman, Atiq ur Rehman, Waqar Ahmad Khan, Irfan Sami, Jong-Suk Ro   +4 more
doaj   +1 more source

Cyber Security of HVDC Systems: A Review of Cyber Threats, Defense, and Testbeds

IEEE Access
High Voltage Direct Current (HVDC) technology is one of the key enablers of the energy transition, especially for offshore wind energy systems. While extensive research on cyber security of High Voltage Alternating Current (HVAC) systems has been ...
Alfan Presekal, Mohsen Jorjani, Vetrivel Subramaniam Rajkumar, Himanshu Goyel, Nicola Cibin, Ioannis Semertzis, Alexandru Stefanov, Peter Palensky   +7 more
doaj   +1 more source

Review on HVDC cable terminations

High Voltage, 2018
With modern power utilities going green by utilising renewable energy technologies and the development of the smart power grid, high-voltage direct current (HVDC) technologies become more and more important in the energy transmission. In particular, HVDC
Hanyu Ye, Tobias Fechner, Xianzhang Lei, Yi Luo, Mingyu Zhou, Zhengyi Han, Haitian Wang, Qikai Zhuang, Ruoyu Xu, Duo Li   +9 more
doaj   +1 more source

Stability Comparison Between Grid-forming and Grid-following Based Wind Farms Integrated MMC-HVDC

Journal of Modern Power Systems and Clean Energy, 2023
Grid-forming (GFM) control based high-voltage DC (HVDC) systems and renewable energy sources (RESs) provide support for enhancing the stability of power systems. However, the interaction and coordination of frequency support between the GFM-based modular
Rongcai Pan, Dong Liu, Shan Liu, Jie Yang, Longze Kou, Guangfu Tang   +5 more
doaj   +1 more source

Strategy for Suppressing Commutation Failures in High-Voltage Direct Current Inverter Station Based on Transient Overvoltage

Energies
Commutation failures in high-voltage direct current (HVDC) transmission systems often occur within inverter stations, posing challenges to the safe and consistent operation of HVDC transmission projects.
Dandan Zhao, Shaoyin He, Hua Huang, Zheng Han, Lv Cui, Yuxin Li   +5 more
doaj   +1 more source

A Novel Bipolar DC Connection Strategy for Photovoltaic Power Plants With a 50% Reduction in DC Cabling Length

Energy Science &Engineering, EarlyView.
Bipolar configuration is a new topology in the direct current (DC) system of photovoltaic power plants, which is topologically analogous to the bipolar configuration utilised in High‐Voltage Direct Current power transmission systems. DC cable length and copper usage are reduced by 50% using a bipolar configuration.
Duško M. Tovilović, Željko R. Đurišić, Vladan R. Durković   +2 more
wiley   +1 more source

An on-line power/voltage stability index for multi-infeed HVDC systems

Journal of Modern Power Systems and Clean Energy, 2019
High-voltage direct current (HVDC) transmission is playing an increasingly important role in modern power systems, and the resulted power/voltage stability issue has raised widespread concern. This paper presents an on-line power/voltage stability index (
Jian Xu, Tiankai Lan, Siyang Liao, Yuanzhang Sun, Deping Ke, Xiong Li, Jun Yang, Xiaotao Peng   +7 more
doaj   +1 more source

PMU‐Based Wide Area Monitoring With Machine Learning to Prevent Blackouts in Bangladesh Power System

Energy Science &Engineering, EarlyView.
A Unified Real‐time Dynamic State Measurements (URTDSM) system with PMU and Phasor Data Concentrator (PDC) deployment plan has been proposed to avoid blackout in the Bangladeshi power system. Machine learning has been used to process data from PMU to identify abnormal events. ABSTRACT The electrical power system must be trustworthy and secure enough to
Imi Bintey Fariha Rahman, Md. Minarul Islam, Md. Shahin Parvej, Abdul Hasib Chowdhury, Taha Selim Ustun, Kashem M. Muttaqi   +5 more
wiley   +1 more source

Control of multiple parallel HVDC systems for frequency response sharing: A study based on synchronous frequency operation of the asynchronously interconnected systems in China

International Journal of Electrical Power & Energy Systems
To enhance frequency stability, the integration of High Voltage Direct Current (HVDC) systems for frequency control has been widely employed. In 2023, a frequency control strategy termed co-frequency control was deployed in the LUXI Back-to-Back (BTB ...
Yan Guo, Chunguang Zhou, Shengmin Qiu, Ke Wang, Yiping Chen, Zhixuan Li   +5 more
doaj   +1 more source

Monitoring Technologies for HVDC Transmission Lines

Energies, 2023
HVDC transmission systems are becoming more prevalent because of the advantages they offer. They are more efficient and environmentally friendly and are becoming preferred in distributed power generation. The reliable operation of HVDC transmission lines
Jeff Laninga, Ali Nasr Esfahani, Gevindu Ediriweera, Nathan Jacob, Behzad Kordi   +4 more
doaj   +1 more source