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Applied Sciences, 2022 Many citizens of European countries may soon experience a long and extensive blackout. The lack of predictability in the output of renewable energy sources, aggravating the problem of consistently matching supply with demand on electric grids, along with
Georgios Fotis +2 more
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A Black Start Scheme Based on Modular Multilevel Control-High Voltage Direct Current
Energies, 2018 Modern society’s need for power and its dependence on power sources is increasing with its development. As a result the consequences of blackout accidents have become more serious. At present, only three sources can be regarded as black-start power
Zecheng Li, Guojun Tan
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VSC-HVDC and Its Applications for Black Start Restoration Processes
Applied Sciences, 2021 System reliability is a measure of an electric grid system’s ability to deliver uninterrupted service at the proper voltage and frequency. This property of the electric system is commonly affected by critical processes, such as a total blackout.
Rafael Sanchez Garciarivas +7 more
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Spin-orbit interactions in black-hole binaries [PDF]
, 2006 We perform numerical simulations of black-hole binaries to study the exchange of spin and orbital angular momentum during the last, highly nonlinear, stages of the coalescence process.
C. O. Lousto +3 more
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Stability of black holes based on horizon thermodynamics
, 2015 On the basis of horizon thermodynamics we study the thermodynamic stability of black holes constructed in general relativity and Gauss-Bonnet gravity. In the framework of horizon thermodynamics there are only five thermodynamic variables $E,P,V,T,S$.
Ma, Meng-Sen, Zhao, Ren
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High-velocity stars from the interaction of a globular cluster and a massive black hole binary [PDF]
, 2016 High-velocity stars are usually thought to be the dynamical product of the interaction of binary systems with supermassive black holes. In this paper, we investigate a particular mechanism of production of high-velocity stars as due to the close ...
CAPUZZO DOLCETTA, Roberto Angelo +1 more
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Black Start Restoration of Islanded Droop-Controlled Microgrids
Energies, 2020 The electricity grid faces the possibility of outages due to extreme weather events, cyber-attack, and unexpected events. When these unwanted events occur, it is desired that electricity be restored as soon as possible to meet the power demands of ...
Ogbonnaya Bassey, Karen L. Butler-Purry
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Revisiting Event Horizon Finders [PDF]
, 2009 Event horizons are the defining physical features of black hole spacetimes, and are of considerable interest in studying black hole dynamics. Here, we reconsider three techniques to localise event horizons in numerical spacetimes: integrating geodesics ...
Adams J C Swarztrauber P N +18 more
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Frequency Control Strategy for Black Starts via PMSG-Based Wind Power Generation
Energies, 2017 The use of wind power generation (WPG) as a source for black starts will significantly enhance the resiliency of power systems and shorten their recovery time from blackouts.
Yi Tang +3 more
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Research on the black start of DC transformers based on soft converter control
Zhejiang dianli, 2023 The DC transformers with dual active bridge （DAB） topology is characterized by zero voltage switching （ZVS） and provides the basis for realizing lossless turn-off buffer by directly paralleling buffer capacitors.
TANG Xueteng +5 more
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