Results 11 to 20 of about 340 (170)
DC–DC converter concept allowing line commutated converters and voltage source converters based HVDC systems connectivity [PDF]
IET Power Electronics, 2020 The most common two challenges in high‐voltage direct current (HVDC) multi‐terminal transmission are the DC fault isolation and the DC voltage stepping up/down. Additionally, interconnecting voltage source converter (VSC)‐ and line commutated converter (LCC)‐based HVDC network topologies has been challenging. This study introduces a new DC–DC converter
Mohamed A. Elgenedy +3 more
openaire +3 more sources
The Journal of Engineering, 2019 A hybrid high-voltage direct current (HVDC) system comprises a line commutated converter (LCC) at the rectifier side and a voltage source converter (VSC) at the inverter side, combining advantages of both LCC and VSC systems.
Yanting Wang +3 more
doaj +1 more source
A Power Allocation Strategy for DC Line Fault in Serial Hybrid LCC-MMC HVDC System
IEEE Access, 2022 The serial hybrid line commutated converter-modular multilevel converter (LCC-MMC) high voltage direct current (HVDC) system has structural features that cause the inverter side three MMCs to form a closed-loop after a DC line fault.
Xiaopeng Li +3 more
doaj +1 more source
Fault response comparison of LCC–MMC hybrid topologies and conventional HVDC topology
The Journal of Engineering, 2018 The modular multilevel converter (MMC) can be used to upgrade conventional line commutated converter-based HVDC systems (LCC-HVDC), construct the hybrid topologies of LCC and MMC to acquire better fault responses.
Boliang Lou +4 more
doaj +1 more source
Energies, 2021 This paper proposes a generic analysis framework for a grid supporting modular multilevel converter (MMC)-high voltage DC (HVDC) in a multi-infeed of line commutated converter (LCC) and MMC (MILM) system. MMC-HVDC can support the grid by compensating for
Sehyun Kim +4 more
doaj +1 more source
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
doaj +1 more source
A Review of LCC-HVDC and VSC-HVDC Technologies and Applications
Transactions on Environment and Electrical Engineering, 2016 High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems.
Oluwafemi Emmanuel Oni +2 more
doaj +1 more source
The LCC type DC grids forming method and fault ride-through strategy based on fault current limiters
International Journal of Electrical Power & Energy SystemsWith the integration of a large number of new energy sources into the power grid, the degree of multi power center continues to deepen, and multi-terminal DC transmission is receiving increasing attention.
Changlin Liu +4 more
doaj +1 more source
A Single-Phase AC-AC Power Electronic Transformer Without Bulky Energy Storage Elements
EnergiesCompared with the line-frequency transformer (LFT), the emerging power electronic transformers (PETs) have gained wide concerns due to the significant merits of higher power density, higher reliability, more flexibility, and multiple functions.
Hui Wang, Shuyang Xie, Liang Yuan
doaj +1 more source
IET Power Electronics, 2023 In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong +6 more
doaj +1 more source