Results 11 to 20 of about 1,581 (183)
Review of oscillations in VSC-HVDC systems caused by control interactions
The Journal of Engineering, 2019 Owing to the fast control response and distinct characteristics of the voltage source converter (VSC), various types of oscillation incidents related to the VSC-HVDC systems have been observed around the world.
Congqi Yin +3 more
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The Journal of Engineering, 2019 The current source converter (CSC)‐HVDC system is the key technology for long distance large power transmission. However, the traditional CSC‐HVDC has two serious shortcomings: (i) vulnerable to commutation failures; and (ii) not being able to control its reactive power.
Haitao Wu +4 more
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A Cascaded Converter Interfacing Long-Distance HVdc and Back-to-Back HVdc Systems [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020 This paper proposes a cascaded converter dedicated to long-distance HVDC infeed and asynchronous back-to-back interconnection of receiving grids. The cascaded converter is consisted of MMCs in series and parallel connection, meeting the high DC voltage and power demand of HVDC system. It realizes hierarchical feeding and asynchronous interconnection of
Wang Xiang +5 more
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Energies, 2018 With the increased use of high voltage direct current (HVDC) systems, line commutated converters (LCC-HVDC) and voltage source converters (VSC-HVDC) tend to feed into AC systems over short electrical distances.
Chao Xiao +5 more
doaj +1 more source
A Review on Topology, Operating and Control Methods of HVDC Transmission System for Offshore Wind Farms [PDF]
E3S Web of Conferences, 2020 High-voltage direct current (HVDC) transmission systems are a promising solution for long distances power transmission offshore wind farms. In order to satisfy the reliability requirements of receiving-end grid and system, the topology, operation and ...
Li Jinke +7 more
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Impact of Primary Frequency Control of Offshore HVDC Grids on Interarea Modes of Power Systems
Energies, 2019 Offshore high-voltage DC (HVDC) grids are developing as a technically reliable and economical solution to transfer more offshore wind power to onshore power systems.
Ali Bidadfar +4 more
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Parallel Restoration Method for AC-DC Hybrid Power Systems Based on Graph Theory
IEEE Access, 2019 High voltage direct current (HVDC) transmission systems have been used for interconnection among multiple power grids. As a result, the conventional AC power systems are transforming into AC-DC hybrid power systems.
Changcheng Li +4 more
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Distributed Controllers for Multiterminal HVDC Transmission Systems [PDF]
IEEE Transactions on Control of Network Systems, 2017 arXiv admin note: substantial text overlap with arXiv:1406.5839, arXiv:1311 ...
Martin Andreasson +3 more
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Controllable reactor based hybrid HVDC breaker
High Voltage, 2020 Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing.
Amir Heidary +4 more
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The Journal of Engineering, 2019 This paper investigates the integration of large offshore wind farms using parallel HVAC and diode-rectifier based HVDC (DR-HVDC) systems. Three different operation modes, i.e.
Lujie Yu, Rui Li, Rui Li, Lie Xu
doaj +1 more source