Results 81 to 90 of about 45,889 (185)

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

IET 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

IET 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, Xiangning Lin, Fanrong Wei, Xiaotong Ji, Dan Liu   +4 more
wiley   +1 more source

Solution to reduce voltage stress of sub-module in LCC–MMC transmission system at the condition of communication fault

The Journal of Engineering, 2018
Line commutate converter–modular multilevel converter (LCC–MMC) hybrid high voltage direct current (HVDC) system combines the advantages of both LCC-HVDC and MMC-HVDC, and will be wildly used in the future.
Dengjiang Xing, Jianjun Su, Dingwen Hu, Shumin Sun, Yan Chen, Xianwei Wang, Jun Zhang, Weizheng Yao, Jinlong Wu   +8 more
doaj   +1 more source

Operation characteristics analysis of the symmetrical unipolar SLCC-HVDC

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, Xiangping KONG, Lei GAO, Jinjiao LIN, Chenqing WANG, Yan TAO   +5 more
doaj   +1 more source

Modeling of Efficient Control Strategies for LCC-HVDC Systems: A Case Study of Matiari-Lahore HVDC Power Transmission Line. [PDF]

Sensors (Basel), 2022
Ahmed A, Khan D, Khan AM, Mustafa MU, Panjwani MK, Hanan M, Agyekum EB, Uhunamure SE, Edokpayi JN.   +8 more
europepmc   +1 more source

Power reversal strategy through DC current reversal using a new bidirectional LCC HVDC system

International Journal of Electrical Power & Energy Systems
This paper presents a new Line-Commutated Converter (LCC) High-Voltage Direct Current (HVDC) topology with bidirectional current capability. Based on the proposed topology, this paper further develops a control strategy that achieves power reversal ...
Kai Zhang, Ying Xue, Zhixuan Li
doaj   +1 more source

control-protection-grids-tudelft/HVDC-RTDS-models: HVDC_models

<p>HVDC/AC models with the European ratings.</p ...
HVDC/AC Control, Aleksandra Lekić, Ajay
core   +1 more source

Analysis of harmonics in subsea power transmission cables used in VSC-HVDC transmission systems operating under steady-state conditions [PDF]

, 2007
Subsea power cables are a critical component of a voltage-source converter-high-voltage direct current (VSC-HVDC) transmission system in any offshore electrical power scheme.
Bucknall, R.W.G., Chien, C.H.
core  

Applicability analysis of travelling wave protection for the hybrid HVDC system

The Journal of Engineering, 2019
The hybrid high-voltage direct current (HVDC) system, in which the rectifier is made up of the line commutated converter (LCC) and the inverter is composed of the modular multilevel converter (MMC), has quite different fault characteristics from the ...
Shaojie Cheng, Yanting Wang, Baohui Zhang, Hongyue Ma   +3 more
doaj   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage
Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
doaj   +1 more source