Results 51 to 60 of about 8,449 (262)
Key stress extraction and equivalent test method for hybrid DC circuit breaker
Global Energy Interconnection, 2018 Firstly, relevant stress properties of millisecond level breaking process and microsecond level commutation process of hybrid HVDC circuit breaker are studied in detail on the basis of the analysis for the application environment and topological ...
Chong Gao +4 more
doaj +1 more source
Offshore DC Grids as an Interconnection of Radial Systems : Protection and Control aspects [PDF]
, 2015 Peer ...
Jovcic, Dragan +3 more
core +1 more source
A new hybrid DC circuit breaker topology
IOP Conference Series: Earth and Environmental Science, 2018 Being advantageous for long-distance power transmission and new energy connection, DC system has wide range of applications in many scenarios. As the capacity of DC power grids increases, the fault current is more difficult to interrupt. And the DC circuit breaker which is very important for protecting DC grid attracts more and more attention of ...
C C Zhu +5 more
openaire +1 more source
A novel current-limiting hybrid DC breaker based on thyristors
Energy Reports, 2023 Since the DC current has no zero-crossing in high-voltage and large-capacity DC scenarios, and the low line impedance results in a large growth rate of fault current, the breaking requirements of DC circuit breakers (DCCB) are further increased.
Xinchao Yu +4 more
doaj +1 more source
Fault mode operation strategies for dual H-bridge current flow controller in meshed HVDC grid [PDF]
, 2018 Peer ...
Carvalho, Adriano +5 more
core +2 more sources
A Review on Hybrid Circuit Breakers for DC Applications
IEEE Open Journal of the Industrial Electronics Society, 2023 Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points. Thanks to their features, dc protection devices allow the safe commutation of the fault current.
Ana Rafaela Figueiredo Bento +2 more
openaire +2 more sources
Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source
Frontiers in Energy Research, 2023 A massive number of DC circuit breaker is usually necessary to be installed to protect HVDC grids from DC faults, this will lead to high capital costs because large number of expensive IGBT-in-series are used.
Qingpeng Zeng +9 more
doaj +1 more source
Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]
, 2012 The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme +4 more
core +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source