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High-power hybrid commutated converter for carbon-neutral power transmission [PDF]
Nature CommunicationsTo achieve carbon neutrality, we must overcome the challenges associated with the long-distance and large-capacity transmission of renewable energy. Direct-current transmission system has advantages in terms of high voltage and high controllability over ...
Chaoqun Xu +7 more
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High voltage direct current (HVDC) transmission: Future expectation for Pakistan
CSEE Journal of Power and Energy Systems, 2019 An HVDC transmission system for bulk power transfer over longer distance offers numerous advantages over an alternating current (AC) transmission system, such as direct integration of networks operating at different frequencies, comparatively low line ...
Kamran Hafeez, Shahid A. Khan
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IET Generation, Transmission & Distribution, 2017 Corona inception voltage is of great significance for the design of ultra‐high‐voltage direct current transmission lines. In this study, based on the change rule of frequency‐domain characteristics of corona current, a new method for calculating corona ...
Yingyi Liu +4 more
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Energies, 2016 In this paper, a novel modulation function-based method including analyses of the modulation index and phase is proposed for operation of modular multilevel converters (MMCs) in high voltage direct current (HVDC) transmission systems.
Majid Mehrasa +4 more
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Research on over-voltage characteristics of ultra high-voltage direct current transmission system
Energy Reports, 2022 Load dumping overvoltage has a significant effect on insulation coordination of direct current (DC) transmission system. Based on the PSCAD/EMTDC electromagnetic transient simulation programs, this paper has built the electromagnetic transient ...
Yingjin Li +6 more
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Energies, 2021 Plummeting reserves and increasing demand of freshwater resources have culminated into a global water crisis. Desalination is a potential solution to mitigate the freshwater shortage. However, the process of desalination is expensive and energy-intensive.
Vishwas Powar, Rajendra Singh
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DC‐presaturated fault current limiter for high voltage direct current transmission systems
High Voltage, 2021 The authors present a 500 kV real‐dimension DC‐presaturated fault current limiter (PFCL) with a steady‐state rated current of 2 kA for limiting large fault current of 8 kA with high rate of rise. These characteristics of the fault current can be a threat
Mohamed Eladawy +2 more
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Energies, 2022 In this paper, the traveling wave protection issue of a hybrid high-voltage direct-current transmission line based on the line-commutated converter and modular multilevel converter is investigated.
Wei Zhang, Dong Wang
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Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic
Journal of Electrical and Computer Engineering, 2022 The high-voltage direct current (HVDC) transmission system, which links the Gurun Substation of the National Electric Authority of Malaysia (Tenaga Nasional Berhad, TNB) with the Khlong Ngae Station of the Electricity Generating Authority of Thailand ...
Chaichan Pothisarn +6 more
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Energies, 2023 Converter blocking is a serious malfunction encountered in high voltage direct current (HVDC) transmission systems. During sending-end converter blocking, the resultant active power and reactive power surplus in the sending-end power system lead to a ...
Hua Li +5 more
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