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Dynamic Phasor Modelling of LCC-HVDC System Based on a Practical Project [PDF]
E3S Web of Conferences, 2021 This paper presents a detailed dynamic phasor modeling process of a line-commutated converter-based HVDC (LCC-HVDC) system. Firstly, the dynamic phasor models of the single-ended LCC rectifier station, inverter station and the DC line are established ...
Li Huan, Qin Kang
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Research on the Modification Plan of HVDC Transfer Switch Arrester
南方能源建设, 2022 [Introduction] During the earth return and metallic return mode conversion of China's HVDC transmission projects in operation, several MRTB (metallic return transfer breaker) or ERTB (earth return transfer breaker) oscillation platform arrester damage ...
LU Yuxin +5 more
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IET Generation, Transmission & Distribution, 2023 The impulse grounding impedance of tower grounding device is one of the important factors in the lightning protection evaluation of transmission line. The impulse characteristic test of the actual tower grounding device under lightning was rarely carried
Yi Zhang +7 more
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Influence of Inverter Controller Parameters on the Small-signal Stability of LCC-HVDC System Based on a Practical Project [PDF]
E3S Web of Conferences, 2021 Unreasonable control parameters of the Line Commutated Converter based High Voltage Direct Current (LCC-HVDC) system may induce small-signal instability.
Li Huan, Qin Kang
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Energies, 2021 The internal pressure of a vacuum interrupter (VI) is increased by arc heat, ceramic cracking, gas leakage, and manufacturing defects. Accordingly, the dielectric strength of VI rapidly decreases.
Seungmin Bang +2 more
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HVDC Transmission Systems based Multi-level Voltage Source Converters for Iraqi Super Grid [PDF]
Engineering and Technology Journal, 2014 High Voltage Direct Current Transmission (HVDC) with Voltage Source Converter (VSC) technology provides substantial technical and economical advantages for different applications compared to conventional HVDC transmission systems based on thyristor ...
Adil Hameed Ahmed +1 more
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Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
Energies, 2021 The calculation of the continuous allowable current of an underground cable is determined by various characteristics. To calculate the allowable current in cables with alternating magnetic fields such as AC, special phenomena such as the proximity effect
Kyu-hoon Park, Il Kwon, Bang-wook Lee
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The Journal of Engineering, 2019 Here, the uncontrolled rectification pre-charging characteristics of the VSC-HVDC system with different modular multilevel converter (MMC) topologies such as full-bridge, half-bridge, and hybrid topologies are proposed based on theoretical analysis and ...
Yuxin Lu +5 more
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Study on Overvoltage of Wind Farm Under AC Fault at Sending End of HVDC Transmission System
Zhongguo dianli, 2023 When the short circuit ratio of receiving end AC system is small, the fault disturbance of sending end AC system may cause commutation failure of the inverter and overvoltage at the LCC-HVDC sending end AC bus.
Wei LIANG +5 more
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Transient Stability Constrained Optimal Power Flow with FACTS and HVDC [PDF]
Journal of Electrical and Electronics Engineering, 2021 In power system, the study of optimal power flow (OPF) with transient stability constrained (TSC) of the mixed AC/DC networks is a big and celebrated challenging optimization problem. Because, of its effort and high complexity in its solution, this paper
AYACHI Bilel, BOUKADOUM Ahcene
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