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Reliability model and algorithm research on HVDC system and flexible HVDC system
The Journal of Engineering, 2019 The main difference between flexible high-voltage direct current (HVDC) system and the traditional HVDC system is that there are two control degrees of freedom in the flexible HVDC system that is the amplitude and phase angle of the output voltage. While,
Zhong Zheng +4 more
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Analysis of power system transient stability with PSO-optimized distributed generation and HVDC transmission systems [PDF]
Scientific ReportsThe integration of distributed generation (DG) and high-voltage direct current (HVDC) facilities into a power system results in altered transient responses compared to traditional AC-based power systems. This study investigates the transient stability of
Jiyeon Jang +3 more
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Conceptional design for a universal HVDC-HVAC vacuum-interrupter-based circuit breaker [PDF]
Scientific ReportsModern power systems high voltage transmission systems either HVDC or HVAC has mandated the presence of two types of circuit breakers (CB), HVAC-CB and HVDC-CB. That required two different production lines, higher costs and more complicated manufacturing
Fady Wadie, Tamer Eliyan
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Reliability research of thyristors for HVDC transmission system. [PDF]
Sci RepAbstract The long-term operation performance of HVDC transmission systems is significantly influenced by the reliability of thyristors. However, the current reliability research of thyristors is mainly based on the leakage current and there is no comprehensive degradation characteristics of thyristors.
Xu Y, Pang L, Xie T, Chen Z, Guo J.
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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 +5 more
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Review of HVDC systems for enhancing resilience after extreme natural events
The Journal of Engineering, 2021 Compared with AC systems, HVDC systems are more flexible and potentially contribute to enhancing system resilience. Currently, three types of HVDC technologies, LCC‐HVDC (Line‐commutated Current‐sourced Converters, LCC), VSC‐HVDC (Voltage Sourced ...
Chuhang Luo, Liang Liang, Xiaoyang Bai
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Practical calculation of SCR of LCC-HVDC considering the role of VSC-HVDC
Zhejiang dianli, 2023 The accurate quantification of transmission limit and grid strength of the multi-infeed LCC-HVDC （line-commutated converter technology-based high-voltage DC） and VSC-HVDC （voltage source converter technology-based high-voltage DC） systems has become one ...
YANG Xiaolei +5 more
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High Voltage, 2022 High Voltage Direct Current (HVDC) underground and submarine cables constitute an essential technology for the long‐distance transmission of renewable electrical power with low losses, thereby fostering decarbonisation.
Giovanni Mazzanti
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Multi‐vendor interoperability in HVDC grid protection: State‐of‐the‐art and challenges ahead
IET Generation, Transmission & Distribution, 2021 Multi‐vendor interoperable HVDC grid protection is key to build large‐scale HVDC grids in a step‐by‐step manner. On the one hand, various protection strategies and technologies have been developed in the past decade to address the challenges associated ...
Mian Wang +4 more
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The Journal of Engineering, 2019 The current source converter (CSC)‐HVDC system is the key technology for long distance large power transmission. However, the traditional CSC‐HVDC has two serious shortcomings: (i) vulnerable to commutation failures; and (ii) not being able to control its reactive power.
Haitao Wu +4 more
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