Results 61 to 70 of about 9,686 (220)

Unscented Kalman Filter With Enhanced Generalised Cross Correlation Entropy for Robust State Estimation of Power System

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT To solve the complex scenarios, such as multimodal noise, bad measurement data and sudden load changes, in the power system, the enhanced generalised cross correlation entropy unscented Kalman filter (EnGCCE‐UKF) method is proposed in this paper.
Liangzheng Wu, Taofei Ku, Kaiman Li, Peifeng Chen   +3 more
wiley   +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

Research on DC Protection Strategy in Multi-Terminal Hybrid HVDC System

Engineering, 2021
Multi-terminal hybrid high-voltage direct current (HVDC) systems have been developed quickly in recent years in power transmission area. However, for voltage-source converter (VSC) stations in hybrid HVDC systems, no direct current (DC) filters are ...
Yuping Zheng, Jiawei He, Bin Li, Tonghua Wu, Wei Dai, Ye Li   +5 more
doaj   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden, Burt, Callavik, Dong Chen, Mitchell, Mohamed Emad Farrag, Oudalov, Waqas Javed, Wu, Xue, Yan Xu, Zhong   +11 more
core   +1 more source

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

Fault Ride-through Capability Enhancement of Voltage Source Converter-High Voltage Direct Current Systems with Bridge Type Fault Current Limiters

Energies, 2017
This paper proposes the use of bridge type fault current limiters (BFCLs) as a potential solution to reduce the impact of fault disturbance on voltage source converter-based high voltage DC (VSC-HVDC) systems.
Md Shafiul Alam, Mohammad Ali Yousef Abido   +1 more
doaj   +1 more source

Significance of fault-current-limiters and parameters optimization in HVDC circuit breakers for increased capacity of VSC-HVDC transmission networks application

Energy Reports, 2022
The voltage and current ratings of the voltage source converter (VSC) based high voltage direct current (HVDC) transmission line projects have increased over the years. It testifies the increasing popularity of VSC-HVDC technology.
Muhammad Ahmad, Zhixin Wang, Muhammad Shafique, Muhammad Haroon Nadeem   +3 more
doaj   +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

Coordinated Control of HVDC and HVAC Power Transmission Systems Integrating a Large Offshore Wind Farm

Energies, 2019
The development of efficient and reliable offshore electrical transmission infrastructure is a key factor in the proliferation of offshore wind farms (OWFs). Traditionally, high-voltage AC (HVAC) transmission has been used for OWFs.
Ali Bidadfar, Oscar Saborío-Romano, Jayachandra Naidu Sakamuri, Vladislav Akhmatov, Nicolaos Antonio Cutululis, Poul Ejnar Sørensen   +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