Results 61 to 70 of about 377 (161)

Enhanced Control Strategies Temporal Coordination Based on Transmitted Active and Reactive Power during Commutation Failure Recovery

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper first identifies the common issue across multiple LCC‐HVDC control systems, namely, that uncertain and uncoordinated control strategies switching would lead to subsequent commutation failure. Then, since power reflects variations in electrical quantities such as voltage and current, the analysis is conducted from a transmitted‐power ...
Xiaohua Li   +4 more
wiley   +1 more source

Cyber‐Resilient MMC‐MTDC Stability via Robust Observer Design for Wind‐Integrated Grids

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a stochastic stabilising control method, based on a Markov jump model (MJM), to comprehensively address stability challenges in modular multilevel converter‐based multi‐terminal direct current (MMC‐MTDC) systems due to communication network disturbances.
Mohsen Darabian   +5 more
wiley   +1 more source

Recovery Control Strategies and Overcurrent Suppression for Bipolar Hybrid Cascaded MTDC Systems Under DC Faults

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The paper explains the issue of managing and recovering DC faults in bipolar hybrid cascaded MTDC systems, the combination of LCCs to achieve power density and MMCs to provide flexible control in long‐distance power transmission, and the integration of large‐scale renewable energy sources. The paper examines fault behaviours in the LCC section, LCC‐MMC
Muhammad Asim Mond, Zhou Li, Wenwen Mei
wiley   +1 more source

Subsynchronous Torsional Interaction of Wind Farms with FSIG Wind Turbines Connected to LCC-HVDC Lines

open access: yesEnergies, 2017
High-voltage direct current (HVDC) lines with line-commutated converter (LCC) are being increasingly employed to transmit bulk wind power over long distance.
Benfeng Gao   +4 more
doaj   +1 more source

Sequential Impedance Modeling and Stability Assessment of VSC‐HVDC Systems Connecting Offshore PV Power Stations

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This paper addresses the challenge of generating synthetic power grids that achieve visual clarity, structural fidelity, and diversity comparable to real‐world systems. A central innovation lies in our focus on small‐scale grids to optimize visual interpretability.
Jiahua Ni   +4 more
wiley   +1 more source

Analysis of Subsequent Commutation Failures Caused by Valve‐Side Single‐Phase‐to‐Ground Faults in Hybrid Cascaded HVDC Systems and Corresponding Suppression Measures

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
The valve‐side single‐phase‐to‐ground (SPG) fault represents one of the most critical issues affecting the safe operation of hybrid cascade HVDC systems. This paper studies the mechanism of subsequent commutation failure caused by SPG faults on the MMC valve side in hybrid cascade HVDC systems and proposes a suppression measure.
Tao Zheng, Yuting Xue
wiley   +1 more source

Fast Frequency Support Strategy for a Novel DC Transmission System of Renewable Energy Based on Grid‐Forming Energy Storage

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
A DRU‐based DC transmission scheme offers economic advantages for renewable energy delivery but suffers from stability issues under weak grid or 100% renewable power plants. To address this, a fast frequency support strategy using a dual‐layer MPC architecture is proposed, enabling rapid ES power adjustment and coordinated SoC balancing.
Xitao Yuan   +4 more
wiley   +1 more source

MMC HVDC Controls for Damping Subsynchronous Interactions With LCC HVDC and Thermal Generator

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
This paper develops a subsynchronous damping controller (SSDC) on modular multilevel converter (MMC) HVDC with the aim of mitigating three‐way torsional interactions between a line commutated converter (LCC) HVDC, MMC HVDC and a nuclear generator. The test case is based on the French IFA2000 2 GW LCC HVDC and the new 1 GW MMC Eleclink, interacting with
Stefan Kovacevic   +4 more
wiley   +1 more source

Subsynchronous Resonance in DFIG‐Based Wind Farms: Mechanisms, Mitigation, and Future Directions—A Review

open access: yesInternational Journal of Photoenergy, Volume 2026, Issue 1, 2026.
The increasing penetration of doubly fed induction generator (DFIG)–based wind farms, combined with series‐compensated transmission and weak grid conditions, has significantly heightened the risk of subsynchronous resonance (SSR). In modern power systems, SSR is manifested as subsynchronous control interaction (SSCI), due to adverse interactions ...
Girmaw Teshager Bitew, Mohammad Alghoul
wiley   +1 more source

Operation characteristics analysis of the symmetrical unipolar SLCC-HVDC

open access: yes电力工程技术
Multi-source self-adaption STATCOM and line commutated converter (SLCC) technology can overcome the inherent shortcomings of conventional line commutated converter (LCC) based high-voltage direct current (HVDC) transmission technology.
Junchao ZHENG   +5 more
doaj   +1 more source

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