Results 71 to 80 of about 200,271 (291)

Fault section location of collector lines based on phase comparison of zero-sequence current using the Kaiser window

International Journal of Electrical Power & Energy Systems
To address the limitations of existing single-phase grounding fault location methods for collector lines in wind farms, especially their insufficient adaptability to multi-branch topologies, this paper proposes a fault section location method based on ...
Yue Dai, Hongchun Shu, Cheng Guan, Yutao Tang, Yiming Han   +4 more
doaj   +1 more source

Back-to-back Converter Control of Grid-connected Wind Turbine to Mitigate Voltage Drop Caused by Faults

, 2017
Power electronic converters enable wind turbines, operating at variable speed, to generate electricity more efficiently. Among variable speed operating turbine generators, permanent magnetic synchronous generator (PMSG) has got more attentions due to low
akhlaghi, Shahrokh, Hajizadeh, Amin, Hassanzadeh, Fattah, Sangrody, Hossein   +3 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid

International Journal of Electrical Power & Energy Systems
In asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues.
Hongchun Shu, Huaibin Gao, Zongxue Shao, Yongzan Cui, Wei Zhao   +4 more
doaj   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Analysis of multiple lightning overvoltage on 110 kV transmission lines

Results in Engineering
As pointed out by the CIGRE TB 549 report issued by the International Power Grid Committee, >80 % of cloud-to-ground lightning are multiple lightning strokes (MLS), posing a severe threat to overhead transmission lines.
Yutao Tang, Haoming Liu, Hongchun Shu, Yue Dai, Yiming Han   +4 more
doaj   +1 more source

A Gossip Algorithm based Clock Synchronization Scheme for Smart Grid Applications

, 2017
The uprising interest in multi-agent based networked system, and the numerous number of applications in the distributed control of the smart grid leads us to address the problem of time synchronization in the smart grid.
Khandaker, Mohammad Aqib, Parvez, Imtiaz, Parvez, Zakaria, Pinto, Jonathan, Sarwat, Arif I.   +4 more
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Advanced control strategy for wind-storage to compensate hammer effect based on SID and FRR

International Journal of Electrical Power & Energy Systems
To address the seasonal variations in frequency regulation requirements (FRRs) for a hybrid renewable hydropower system, this study proposes an advanced wind-storage coordinated control strategy to compensate for the water hammer effect, based on system ...
Hongchun Shu, Jing Chen, Botao Shi, Guangxue Wang, Xi Wang, Shunguang Lei   +5 more
doaj   +1 more source

A New Data Fusion Method for Multi Terminal Fault Location Based on Sensor Networks

ITM Web of Conferences, 2018
Data fusion with different types of data that used for grid fault location can bring more accurate and clear results. Therefore, a new method for fault location which contains multi grid current and voltage, time and coordinate data information is ...
Cai Qing-Sen
doaj   +1 more source