Results 1 to 10 of about 375 (216)
Grid integration and a power quality assessment of a wave-energy park
IET Smart Grid, 2019 This study presents a step toward the grid connection of a wave-energy park through an electric power conversion system (EPCS) developed and installed for the wave-energy harvesting in Lysekil, Sweden.
Arvind Parwal +10 more
doaj +1 more source
Power cable stresses caused by transmission line faults in next generation VSC-MMC systems
The Journal of Engineering, 2019 Until today, HVDC systems based on Modular Multilevel Voltage Source Converters (VSC-MMC) have exclusively been realised with cross-linked polyethylene (XLPE) cable transmission in monopolar configuration.
Philipp Tünnerhoff +3 more
doaj +1 more source
A second‐order sliding mode control with active disturbance rejection for dynamic voltage restorers
IET Power ElectronicsThis paper proposes an extended state observer (ESO)‐based second‐order sliding mode control (SMC) for dynamic voltage restorers (DVRs). Unlike the conventional first‐order SMC and some second‐order SMC (SOSMC) methods that suffer from chattering, the ...
Farzaneh Bagheri +3 more
doaj +1 more source
Modelling and control of a back-to-back MMC–HVDC system using ADPSS
The Journal of Engineering, 2019 Back-to-back modular multilevel converter–high-voltage direct current (MMC–HVDC) can realise the asynchronous interconnection of two regional power grids. It can effectively solve the power grid stability problems caused by AC–DC power transfer and avoid
Pucheng Cai, Wang Xiang, Jinyu Wen
doaj +1 more source
Variable DC voltage based reactive power enhancement scheme for MMC‐STATCOM
IET Smart GridConstrained by the AC voltage amplitude modulated by a modular multilevel converter‐based static synchronous compensator (MMC‐STATCOM), its reactive power output may be subject to oscillations under grid contingencies, posing a threat to the grid stable ...
Lujie Yu +4 more
doaj +1 more source
VSC HVDC active damping for the Sylwin 1 offshore wind power plants
The Journal of Engineering, 2019 SylWin1 is a VSC HVDC link connecting 864 MW offshore wind power generation to Germany's high voltage network. This paper presents a harmonic performance analysis of the offshore network carried out during the design and commissioning phase with a focus ...
Alvaro Hernandez Manchola +4 more
doaj +1 more source
IET Renewable Power GenerationSub‐synchronous oscillation of grid‐connected voltage source converter (VSC) dominated by phase locked loop (PLL) is an important stability issue in nowadays power systems.
Boyuan Zhao +4 more
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The Journal of Engineering, 2019 Zhangbei demonstration project will be the world's highest voltage level and largest capacity VSC-HVDC power grid, by which millions of kilowatts of renewable energy and pumped storage power will be supplied to Beijing.
Man Xu, Linlin Wu, Hui Liu, Xiao Wang
doaj +1 more source
The Journal of Engineering, 2019 Modular multi-level converter (MMC) with press-packing IGBT devices is the popular and key equipment of VSC-HVDC system, its reliability is directly related to the equipment safe operation.
Li Hui +6 more
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The Journal of Engineering, 2019 Press-pack insulated gate bipolar transistor (IGBT) device is the key component in the voltage source converter high voltage direct current (VSC-HVDC) due the advantage of the short-circuit failure.
Ran Yao +9 more
doaj +1 more source