Results 11 to 20 of about 377 (161)
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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An alternative approach to provisions of the Network Code on blocking HVDC LCC systems during short-circuits in AC network [PDF]
E3S Web of Conferences, 2019 The Network Code for HVDC systems introduces a requirement for such systems to remain in operation in an AC network during short-circuits. This requirement (among others) is determined by a time curve of a minimum voltage in HVDC connection point.
Szablicki Mateusz +3 more
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A Review on Large Capacity Controllable Switching Current Source Converter Research
Zhongguo dianli, 2021 The controllable switching current source converter (CSC) is considered to have promising technological advantages over LCC and VSC. The rapid development of reverse blocking high-power semiconductor devices provides a new opportunity for the application
Longlong CHEN +6 more
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A New DC-DC Converter Linking LCC-HVDC Transmission Networks [PDF]
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), 2021 Transferring bulk power via high voltage direct current (HVDC) transmission is dominated by line commutated converters (LCC). This is due to the robustness and higher ratings of the thyristors as well as the higher converter efficiency. Nevertheless, most of these transmission networks are point to point. This is due to the challenges of allowing multi-
Elgenedy, Mohamed A. +4 more
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Harmonic loss analysis of converter transformer in LCL-HVDC system
Energy Reports, 2020 At present, China’s energy distribution and economic development are extremely unbalanced. In order to make rational use of resources, China has promoted the “west to East power transmission” and “north to South Power Transmission” pattern.
Qing Ni +3 more
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Journal of Modern Power Systems and Clean Energy, 2020 To reduce the probability of commutation failure (CF) of a line commutated converter based high-voltage direct current (LCC-HVDC) transmission, a DC chopper topology composed of power consumption sub-modules based on thyristor full-bridge module (TFB ...
Chunyi Guo, Bo Liu, Chengyong Zhao
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IOP Conference Series: Earth and Environmental Science, 2021 Abstract The paper studies the difference between two-terminal Line Commutate Converter Based High Voltage Direct Current (LCC-HVDC) and three-terminal LCC-HVDC control and protection system relying on the Yun-gui Interconnection Project of China Southern Grid (CSG).
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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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The Simulation Analysis and Countermeasures of LCC-HVDC Complementary Resonance
Journal of Physics: Conference Series, 2023 Abstract With the advancement of HVDC technology, the AC/DC hybrid grid has gradually emerged. The interaction and influence between AC and DC have become increasingly prominent, with the complementary resonance problem between AC and DC emerging as a hot research topic.
Yinsheng Su +5 more
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Applied Sciences, 2019 Since thyristor cannot turn off automatically, line commutated converter based high voltage direct current (LCC-HVDC) will inevitably fail to commutate and therefore auxiliary controls or voltage control devices are needed to improve the commutation ...
Jiangbo Sha +3 more
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