Results 11 to 20 of about 377 (128)
Interoperability of Modular Multilevel and Alternate Arm Converters in Hybrid HVDC Systems
Energies, 2021 This paper demonstrates the interoperability of an emerging alternate arm converter (AAC) with the state-of-the-art modular multilevel converter (MMC) in high-voltage direct current (HVDC) systems based on a hybrid VSC-HVDC system.
Harith R. Wickramasinghe +2 more
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IET Generation, Transmission & Distribution, 2021 The multi‐terminal hybrid line commutated converter (LCC)/modular multilevel converter (MMC)‐based high voltage dc (HVDC) has been applied to solve the simultaneous commutation failure problem in East China.
Chenhao Zhang +6 more
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Research on protection adaptability and optimization scheme of VSC/LCC DC parallel hybrid system
AIP Advances, 2023 With the continuous development of high-voltage direct current (HVDC) technology and the relative concentration of power load and power, the HVDC parallel hybrid system will inevitably appear again.
A. Ting Wang +5 more
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The hybrid simulation system of hydropower generation units in islanding AC grid and its applications [PDF]
ITM Web of Conferences, 2022 It is a trend for the large hydropower bases to transport the electricity to consuming center with High Voltage Direct Current (HVDC) transmission lines. The fault of HVDC has great significance impact on hydropower units in islanding sending AC grid. In
Zhang Shuang +3 more
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Energies, 2021 Increasing offshore wind farms are rapidly installed and planned. However, this will pose a bottle neck challenge for long-distance transmission as well as inherent variation of their generating power outputs to the existing AC grid. VSC-HVDC links could
Duc Nguyen Huu
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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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On the Optimization of Damping Enhancement in a Power System with a Hybrid HVDC Link [PDF]
2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2019 Hybrid HVDC links incorporate both Line Commutated Converters (LCC) and Voltage Source Converters (VSC) systems, thereby gathering the benefits of both technologies. Supplementary Power Oscillation Damping (POD) controllers can be added to both LCCs and VSCs to help enhance the power system stability against disturbances, such as short circuits ...
Harold R. Chamorro +8 more
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Studies of commutation failures in hybrid LCC/MMC HVDC systems [PDF]
Global Energy Interconnection, 2020 A hybrid of line commutated converters(LCCs) and modular multi-level converters(MMCs) can provide the advantages of both the technologies. However, the commutation failure still exists if the LCC operates as an inverter in a hybrid LCC/MMC system. In this paper, the system behavior during a commutation failure is investigated.
Gen Li +6 more
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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 +3 more
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Dynamic analysis of voltage angle droop controlled HVDC systems in curative congestion management scenarios [PDF]
EPJ Web of Conferences, 2019 The integration of the voltage-source converter based high voltage direct current (VSC-HVDC) system makes the set-point of its active power adaptive to the changes in the power flow, and contributes to the curative congestion management.
Zhou Yang, Dalhues Stefan, Häger Ulf
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