A Selective Fault Clearing Scheme for a Hybrid VSC-LCC Multi-Terminal HVdc System

Haleem, Naushath M.; Rajapakse, Athula D.; Gole, Aniruddha M.; Fernando, I.T.

doi:10.3390/en13143554

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…Hybrid HVDC transmission technology (Rao et al, 2022) combines the technical advantages of LCC-HVDC and VSC-HVDC, which not only overcomes the challenges of long-distance transmission with high-power but also solves VRE integration, power quality, and grid asynchronous interconnection in a power system, and is gradually applied in engineering. Currently, the Wu-dong-de Hybrid DC Project and the Jian-su Hybrid cascaded MTDC Project in China are in operation and have proven their worth (Haleem et al, 2019;Reza Ahrabi et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Planning and Operation Strategies for Enhancing Power System Flexibility in Low-Carbon Energy Transition

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Introductionmentioning

confidence: 99%

Planning and Operation Strategies for Enhancing Power System Flexibility in Low-Carbon Energy Transition

2024

Frontiers Research Topics

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“…Currently, the Wu-dong-de Hybrid DC Project and the Jian-su Hybrid cascaded MTDC Project in China are in operation and have proven their worth (Haleem et al, 2019;Reza Ahrabi et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

A decision-making method for the operation flexibility enhancement of hybrid cascaded MTDC

Wang,

Li,

Zhang

2023

Front. Energy Res.

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To enable the integration of large-scale renewable energy, hybrid HVDC technology, which combines the technical advantages of LCC-HVDC and VSC-HVDC, is being gradually deployed in the power grid nowadays. The operation of the Wu-dong-de Hybrid DC Project and the Jian-su Hybrid cascaded MTDC Project has proved its advantages. However, for the simultaneous application of different converter station technologies in the system, the control strategies become complex. Issuing appropriate control instructions to ensure system stability according to operational requirements is an issue that cannot be ignored in decision-making. Even under abnormal conditions, when the topology changes due to various failure scenarios, reasonable decision-making and precise control instruction definitions are required. To achieve flexible planning of the MTDC system, this paper presents a decision-making method for control strategies of a hybrid cascaded MTDC system, which analyzes the control strategy combinations selected for normal and abnormal conditions of the MTDC system. In addition, a control instruction calculating method and decision-making process for precise control in normal and abnormal control conditions is proposed. Simulation results based on a five-terminal hybrid cascaded MTDC in PSCAD/EMTDC have verified the effectiveness of the proposed method.

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“…The huge requirements for HVDC CBs include a remarkably short operation time for interrupting large fault currents without any natural zero crossing as well as dissipating large amounts of energy stored in the inductances of the system [3,4].…”

Section: Introductionmentioning

confidence: 99%

Circuit Breaker Failure Protection Strategy for HVDC Grids

et al. 2021

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HVDC grids demand the fast and reliable operation of the protection system. The failure of any protection element should initialize a backup protection almost immediately in order to assure the system’s stability. This paper proposes a novel backup strategy that covers the failure of the primary protection including the malfunctioning of the HVDC circuit breaker. Only local voltage measurements are employed in the proposed backup protection and the voltage derivative is calculated at both sides of the limiting inductor. Consequently, the speed and reliability of the protection system are enhanced, since no communication channel is needed. This paper contains a thorough specification of the proposed protection strategy. This strategy is validated in a four-terminal HVDC grid with various fault case scenarios, including high-resistance fault cases. The operation of the backup protection is reliable and remarkably fast.

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A Selective Fault Clearing Scheme for a Hybrid VSC-LCC Multi-Terminal HVdc System

Cited by 3 publications

References 39 publications

Planning and Operation Strategies for Enhancing Power System Flexibility in Low-Carbon Energy Transition

Planning and Operation Strategies for Enhancing Power System Flexibility in Low-Carbon Energy Transition

A decision-making method for the operation flexibility enhancement of hybrid cascaded MTDC

Circuit Breaker Failure Protection Strategy for HVDC Grids

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