Results 41 to 50 of about 377 (161)

Performance Evaluation and Reliability of Flexible Asynchronous AC Link and LCC–HVDC Link Under Fault Conditions

IEEE Access, 2020
Normally, HVDC links are used for the asynchronous interconnection of power system networks. Similarly, asynchronous AC links are also used for the same application.
Imdadullah, Abdul R. Beig, M. Syed Jamil Asghar   +2 more
doaj   +1 more source

Analysis of the Operating Margin Evaluation of Multi-Infeed LCC-HVDC Systems Based on the Equivalent Impedance

IEEE Access, 2021
In China, a structure in which multiple line-commutated converter based high-voltage direct current (LCC-HVDC) systems feed into the same AC system has been formed.
Sicheng Wang, Shan Gao, Zhong Chen, Xin Zhao, Tiancheng E. Song, Yu Liu, Dong Yu, Sufan Jiang   +7 more
doaj   +1 more source

Impact of LCC–HVDC multiterminal on generator rotor angle stability

International Journal of Electrical and Computer Engineering (IJECE), 2020
<span>Multiterminal High Voltage Direct Current (HVDC) transmission utilizing Line Commutated Converter (LCC-HVDC) technology is on the increase in interconnecting a remote generating station to any urban centre via long distance DC lines. This Multiterminal-HVDC (MTDC) system offers a reduced right of way benefits, reduction in transmission ...
Oluwafemi E. Oni, Andrew G. Swanson, Rudiren Pillay Carpanen   +2 more
openaire   +2 more sources

DC Side Impedance Modelling of an Actual Line Commutated Converter High Voltage Direct Current System and DC Resonance Characteristics

High Voltage, Volume 11, Issue 3, Page 725-737, June 2026.
ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang, Juntao Liu, Qingming Xin, Ze Mo, Baixian Ye, Yuekun Liu, Chuang Fu   +6 more
wiley   +1 more source

Modified average‐value model for high‐performance fault transient simulation of AC‐DC hybrid power networks

IET Renewable Power Generation, 2023
Due to the complicated transients and the possibility of transition from a minor fault in AC subsystems to a severe blocking event of a high‐voltage direct–current (HVDC) transmission line, the study of AC‐DC hybrid power systems requires both efficient ...
Zeqi Hong, Yin Xu, Jinghan He, Dahai Zhang   +3 more
doaj   +1 more source

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

Engineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang, Yuchao Zheng, Qian Wu, Linyuan Wang, Meng Ruan, Yixin Pan, Xiangjun Quan, Fei Zhang   +7 more
wiley   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source

A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control

Digital Twins and Applications, Volume 3, Issue 1, January/December 2026.
This study introduces a digital twin‐driven hybrid ultra‐high‐voltage DC transformer (UHVDCT) that combines high‐capacity LCCs with low‐capacity MMCs at the UHV side. This innovative topology reduces MMC requirements by 32.9% while ensuring stable power flow and dynamic reactive balance through real‐time virtual‐physical synchronization.
Ling Xu, Le Zhao, Xiaohu Zhang, Hanlin Guo, Jie Fang, Zheren Zhang, Zheng Xu   +6 more
wiley   +1 more source

Research on Voltage Regulation Methods for Flexible On‐Load Tap‐Changing Transformers

Electrical Materials and Applications, Volume 3, Issue 1, January/December 2026.
The control system determines whether the output voltage magnitude of the voltage source converter (VSC) is high, low or constant and generates the corresponding pulse signals. Each pulse is generated at the valve‐triggering instant, with its width corresponding to the commutation angle.
Weimei Zhao, Qiao Guangyao
wiley   +1 more source

Real‐Time Active Power Control Method Considering Voltage Security Constraints and Effective Regulation Space of Multitype Resources

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT Renewable energy bases in Desert‐Gobi‐Wasteland (DGW) areas connected with high‐voltage direct current (HVDC) transmission systems show notable weak‐grid features, including low inertia, weak damping and a low short‐circuit ratio. This results in strong active power–voltage (P–V) coupling effects, making existing real‐time active power control
Guoqing Li, Heyang Sun, Shouqi Jiang, Yechun Xin, Jian Lou   +4 more
wiley   +1 more source