Results 61 to 70 of about 1,668 (205)
Interaction analysis in islanded power systems with HVDC interconnections [PDF]
, 2018 Postprint (published ...
Cheah Mañé, Marc +8 more
core
, 2016 This paper demonstrates a corrective control strategy through fast actuators (TCSC FACTS and HVDC links, both LCC and VSC) in order to enhance the transient stability in the future Great Britain (GB) transmission network. A model predictive control (MPC)
Chaudhuri, B +2 more
core +1 more source
Distributed PLL-based control of offshore wind turbines connected with diode-rectifier based HVDC systems [PDF]
, 2017 A distributed PLL-based frequency control is proposed in this paper for offshore wind turbine converters connected with diode-rectifier based high-voltage-direct-current (HVDC) systems. The proposed control enables a large number of wind turbines to work
Li, Rui, Xu, Lie, Yu, Lujie
core +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 +6 more
wiley +1 more source
Distributed Primary Frequency Control through Multi-Terminal HVDC Transmission Systems [PDF]
, 2015 This paper presents a decentralized controller for sharing primary AC frequency control reserves through a multi-terminal HVDC grid. By using Lyapunov arguments, the proposed controller is shown to stabilize the equilibrium of the closed-loop system ...
Andersson, Göran +4 more
core +1 more source
Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors
CSEE Journal of Power and Energy Systems, 2022 Commutation failure (CF) is a frequent dynamic event at inverter of LCC-HVDC systems caused by AC side faults which can lead to inverter blocking, interruption of active power transfer, and even system blackout. To eliminate CFs and improve system performance, new Flexible LCC-HVDC topologies have been proposed in previous research but with limited ...
Nan Chen +5 more
openaire +2 more sources
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
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 +5 more
wiley +1 more source
Stability analysis of large wind farms connected to weak AC networks incorporating PLL dynamics [PDF]
, 2015 Voltage source converter interfaced wind turbines connected to weak grids can induce system instability. A state space model is used in this paper to study the stability of large wind farms.
Givaki, Kamyab, Xu, Lie
core +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.The study presents a shapelet‐based method for short‐term voltage stability assessment in multi‐infeed HVDC systems, directly addressing the challenges of high‐dimensional, nonlinear and time‐varying phenomena intrinsic to modern power grids. By integrating a multi‐timescale interaction mechanism with an interpretable time‐series data mining approach ...
Yubo Sun, Shuqing Zhang, Chao Lu
wiley +1 more source