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Flexible operation of low-inertia power systems connected via high voltage direct current interconnectors

, 2020
The replacement of conventional synchronous generators with converter-interfaced generation units calls for increased amounts of flexibility. This paper proposes a novel formulation of the security-constrained unit commitment (SCUC) model applied to a ...
V. Trovato, A. Mazza, G. Chicco
semanticscholar   +1 more source

Improved Approach to High-Frequency Current Injection-Based Protection for Grounding Electrode Line in High-Voltage Direct Current System

IEEE transactions on industry applications, 2020
High-frequency current injection-based protection is widely used for fault detection of a grounding electrode line in high-voltage direct current (HVdc) system.
Yufei Teng, Zhenyuan Zhang, Xiaopeng Li
semanticscholar   +1 more source

Recyclable Dielectric Polymer Nanocomposites with Voltage Stabilizer Interface: Toward New Generation of High Voltage Direct Current Cable Insulation

ACS Sustainable Chemistry and Engineering, 2018
Long-distance and large-capacity transmission systems have been strongly demanded in modern society, which requires the development of high voltage direct current (HVDC) cables.
Yahan Gao   +4 more
semanticscholar   +1 more source

Polypropylene-based ternary nanocomposites for recyclable high-voltage direct-current cable insulation

Composites Science And Technology, 2018
Polymeric high-voltage direct-current (HVDC) cables are the core equipment in energy internet, which enable the long-distance large-capacity electric power transmission, large-scale utilization of renewable electric power and flexible interconnection of ...
Yao Zhou   +6 more
semanticscholar   +1 more source

Partial discharge behavior of protrusion on high voltage conductor in GIS/GIL under high voltage direct current: Comparison of SF6 and SF6 alternative gases

IEEE transactions on dielectrics and electrical insulation, 2020
Recent studies have demonstrated that fluoronitrile (FN) Novec™ 4710 and fluoroketone (FK) Novec™ 5110 show higher dielectric strength than SF6. These gases can be mixed with a buffer gas such as CO2 and technical air to have suitable dielectric ...
C. Toigo   +3 more
semanticscholar   +1 more source

Direct generation of alternating current at high voltages

Journal of the Institution of Electrical Engineers, 1929
The authors begin by pointing out, with the help of a mechanical analogy, the true place which the alternating current transformer takes in the group of plant considered to-day to be standard for the generation, transmission and distribution of electric power on a large scale.They propose the use of high-voltage alternators and the partial abolition of
Charles A. Parsons, J. Rosen
openaire   +1 more source

High Direct Voltages and Currents

2019
High direct (DC) voltages and currents are becoming increasingly important because of the increasing number of high voltage direct current (HVDC) transmission systems worldwide. Numerous other application fields exist in physics and technology, and DC voltages are also needed to generate impulse voltages and currents.
openaire   +1 more source

Compact High Voltage Direct Current Gas-insulated Systems

IEEE International Conference on High Voltage Engineering and Application, 2020
The technology of high-voltage direct current transmission (HVDC) for long-distance transportation of huge energy amounts has made its way also for grid access of offshore windfarms and interconnectors between different countries.
U. Riechert
semanticscholar   +1 more source

Hybrid Modulation Scheme for Switching Loss Reduction in a Modular Multilevel High-Voltage Direct Current Converter

IEEE transactions on power electronics, 2019
A modular multilevel converter (MMC) is regarded as a promising topology in high-voltage direct current systems. However, the MMC consists of numerous submodules (SMs) and switching devices, which lead to a considerable switching loss, and increased cost
Seok-Min Kim   +3 more
semanticscholar   +1 more source

Prevention and mitigation of high‐voltage direct current commutation failures: a review and future directions

IET Generation, Transmission & Distribution, 2019
With the increasing applications of high-voltage direct current inverters in heavy-load grids, commutation failures (CFs) pose a severe threat to the safe and stable operation of power systems.
Yanan Zhu   +6 more
semanticscholar   +1 more source

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