Results 71 to 80 of about 17,198,062 (208)

Reactive power sensitivity-based novel overvoltage suppression strategy for parallel VSC-and-LCC-HVDC transmission system

International Journal of Electrical Power & Energy Systems
The rapid deployment of both line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage source converter-based high-voltage direct current (VSC-HVDC) does not only prolificate AC/DC grid coupling but also form new DC transmission ...
Yi Hao, Lujie Yu, Chuanjie Nie, Fengdi Li, Heyu Luo   +4 more
doaj   +1 more source

Parametric Sensitivity Analysis of a Multi‐Gigawatt Offshore Multi‐Energy System Using Reduced‐Order Models

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT When multiple grid‐forming and grid‐following converters operate within an offshore energy system (OES), dynamic interactions among them can lead to poorly damped oscillations and potential instability. This paper proposes a computationally efficient reduced‐order state‐space modelling framework for small‐signal stability and parametric ...
Nakul Narayanan K, Chunjun Huang, Maria Camila Castrillon Franco, Jose Luis Rueda Torres   +3 more
wiley   +1 more source

MODELING AND SIMULATION OF VSC-HVDC WITH DYNAMIC PHASORS

Electrica, 2008
A novel dynamic phasors method to model voltage sources converter based HVDC (VSC-HVDC) transmission system is proposed in this paper. This approach is based on the time-varying Fourier series coefficients of the system variables, and focused on the ...
Wei YAO, Jinyu WEN, Shijie CHENG
doaj   +2 more sources

Multi‐Layer MTDC Protection: Design and Simulation Assessment

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study proposes a novel multi‐layer protection architecture for multi‐terminal DC systems that separates fault current‐limiting and interruption functions. By combining a thyristor‐based fault current limiter with an active resonance circuit breaker, the scheme significantly reduces peak fault currents and di/dt stress, enabling a more compact ...
Jong‐Geon Lee, Il Kwon, YuJin Kwahk, Bang‐Wook Lee   +3 more
wiley   +1 more source

Stability and Synchronization of MMC‐HVDC Systems Using SRF and Inertia‐Based PLLs

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study investigates the influence of synchronous reference frame PLL (SRF‐PLL) and the inertia PLL (IPLL) on the stability of grid‐connected modular multilevel converter high voltage direct current (MMC‐HVDC) systems. The findings highlight intrinsic stability limitations of PLL‐based systems, offering insights toward more stable, PLL‐less ...
Shuai Wang, Robin Preece, Mike Barnes
wiley   +1 more source

Wideband Oscillation Mechanism Analysis in VSC-HVDC Systems With Virtual Synchronous Machine in Master-Slave Mode

IEEE Access
Virtual synchronous machine (VSM) has been applied in voltage source converter high voltage direct current (VSC-HVDC) system. This paper proposes a stability evaluation model for ‘rate of change of frequency-transient frequency excursion’ ...
Chang Li, Bingbing Shao, Xun Mao, Wangchao Dong, Kai Lyu   +4 more
doaj   +1 more source

Power hardware in the loop validation of fault ride through of VSC HVDC connected offshore wind power plants

Journal of Modern Power Systems and Clean Energy, 2014
This paper presents the power hardware in the loop (PHIL) validation of a feed forward DC voltage control scheme for the fault ride through (FRT) of voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs). In the
Ranjan Sharma, Qiuwei Wu, Seung Tae Cha, Kim H. Jensen, Tonny W. Rasmussen, Jacob Ostegaard   +5 more
doaj   +1 more source

Multi‐Dimensional Stability Constrained Bi‐Level Topology Optimisation Method for HVDC Systems Embedded in Dense AC Grids

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
1) The typical operational risks and coupling characteristics of the AC/DC hybrid power grid are analyzed in detail. 2) A bi‐Level topology optimization method is designed for HVDC systems embedded in dense AC grids. 3) Considering engineering standards of both security and economy, multi‐dimensional security and stability constraints are incorporated ...
Mingxin Yan, Ying Huang, Guoteng Wang, Hui Cai, Zheng Xu, Xingning Han   +5 more
wiley   +1 more source

Damping Torque Analysis of VSC-HVDC Supplementary Damping Controller for Small-Signal Stability

IEEE Access, 2020
In order to improve the small-signal stability of AC/DC hybrid systems containing voltage-source converter based high-voltage direct current (VSC-HVDC), this article extends damping torque analysis (DTA) theory to VSC-HVDC supplementary damping ...
Tao Zhou, Zhong Chen, Bixing Ren, Siqi Bu, Puyu Wang   +4 more
doaj   +1 more source

Research on Coordinated Control Strategies for Low‐Frequency Networking in Large‐Scale Offshore Wind Farms

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper addresses challenges in large‐scale offshore wind power integration by proposing a coordinated control strategy for low‐frequency networking using the modular multilevel matrix converter (M3C), enabling stable multi‐terminal and multi‐farm connections.
Shihong Shi, Yonghuan Liu, Lianhui Ning, Yang Huang, Zhida Kong, Kaiwen Liao, Qingjian Wang, Ruoxi Fan, Qingxin Wang, Tiantian He   +9 more
wiley   +1 more source