Results 1 to 10 of about 3,044 (148)
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
doaj +1 more source
Analysis of dual-infeed HVDC with LCC-HVDC and VSC-HVDC [PDF]
2013 IEEE Power & Energy Society General Meeting, 2012 Summary form only given. The impact of a Voltage Sourced Converter based HVDC (VSC-HVDC) infeed on a line- commutated converter based HVDC infeed (LCC-HVDC) at the same busbar is investigated. Steady state aspects such as the maximum available power (MAP) as well as transient aspects such as temporary overvoltage (TOV) and “Commutation Failure Immunity
Chunyi Guo +3 more
+6 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Fault Detection and Classification of VSC-HVDC Transmission Lines Using a Deep Intelligent Algorithm [PDF]
International Journal of Research and Technology in Electrical Industry, 2023 Considering the sensitivity of high voltage direct current transmission system protection and the difficulty in identifying external DC faults, this paper presents two methods for fault detection and classification in VSC-HVDC transmission lines.
Amir Inanloo salehi, Navid Ghaffarzadeh
doaj +1 more source