Zobrazeno 1 - 10
of 583
pro vyhledávání: '"HVDC Grid"'
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 163, Iss , Pp 110352- (2024)
Wavelet transform has proven to be a capable tool for protection purposes in high voltage direct current (HVDC) transmission lines due to its desired speed and accuracy. However, the need to enhance the WT-based protection methods in terms of sensiti
Externí odkaz:
https://doaj.org/article/4353a1aca63548c5942ff46b87862aae
DC fault current-limiting method based on dual-loop active control for modular multilevel converters
Autor:
Quan, Lijian, Zeng, Guohui
Publikováno v:
COMPEL -The international journal for computation and mathematics in electrical and electronic engineering, 2022, Vol. 42, Issue 2, pp. 526-542.
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 11, Iss 3, Pp 950-966 (2023)
The over-current capacity of half-bridge modular multi-level converter (MMC) is quite weak, which requests protections to detect faults accurately and reliably in several milliseconds after DC faults. The sensitivity and reliability of the existing s
Externí odkaz:
https://doaj.org/article/66e524625f9f4defa476c7c0bc911a25
A New Smart Grid Hybrid DC–DC Converter with Improved Voltage Gain and Synchronized Multiple Outputs
Autor:
Khaled A. Mahafzah, Mohammad A. Obeidat, Ayman Mansour, Eleonora Riva Sanseverino, Gaetano Zizzo
Publikováno v:
Applied Sciences, Vol 14, Iss 6, p 2274 (2024)
This paper introduces a new hybrid DC–DC converter with enhanced voltage gain and synchronized multiple output capabilities, specifically tailored for smart grid applications. The proposed converter is based on the integration of non-isolated Zeta
Externí odkaz:
https://doaj.org/article/1ba19752156e485aa744cbbcdffa0ee3
Akademický článek
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Publikováno v:
Archives of Electrical Engineering, Vol vol. 70, Iss No 4, Pp 907-923 (2021)
In order to realize selective isolation of fault lines in multi-terminal high voltage DC (MT-HVDC) grids, it is necessary to ensure that the sound lines can still transmit power normally after the grounding fault occurs in a DC power network. If the
Externí odkaz:
https://doaj.org/article/052d51af5c9249ae92b60c549a18670b
Akademický článek
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Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
DC circuit breakers (DCCBs) are the critical equipment to isolate faults in high-voltage DC grids. The improvement of interruption performances of capacitor-based DCCBs (C-DCCBs) has been widely researched. However, in previous papers, the adaptive r
Externí odkaz:
https://doaj.org/article/69d66792f03c461e90e3c0b61a0e9d2c
Publikováno v:
IEEE Access, Vol 9, Pp 98731-98745 (2021)
The paper aims at minimizing DC voltage oscillations in offshore multiterminal high-voltage direct current (HVDC) grids based on modular multilevel converters (MMCs). The DC voltage stability is a crucial factor in multiterminal HVDC networks since i
Externí odkaz:
https://doaj.org/article/d2b91c9ec64b4e8fbe4dc5e937ca30d5
Publikováno v:
IEEE Access, Vol 9, Pp 155788-155804 (2021)
This paper proposes a communication-free control strategy at the offshore wind farm (OWF) level to enhance onshore fault ride-through (FRT) grid code compliance of the voltage source converter (VSC)-based multi-terminal high voltage direct current (M
Externí odkaz:
https://doaj.org/article/64b9059bb73045fcadad958566b193c6