Results 61 to 70 of about 46,909 (228)
Energies, 2017 This paper proposes the use of bridge type fault current limiters (BFCLs) as a potential solution to reduce the impact of fault disturbance on voltage source converter-based high voltage DC (VSC-HVDC) systems.
Md Shafiul Alam +1 more
doaj +1 more source
IET Renewable Power Generation, 2017 Doubly fed induction generator (DFIG) based wind turbines are sensitive to grid faults due to utilising small‐scale rotor side converter (RSC). The application of crowbar protection to improve the fault ride‐through (FRT) capability of the DFIG converts it to a squirrel cage induction generator, which makes it difficult to comply with grid codes.
Amin Jalilian +4 more
openaire +3 more sources
Protection system considerations for DC distributed electrical propulsion systems [PDF]
, 2015 Distributed electrical propulsion for aircraft, also known as turbo-electric distributed propulsion (TeDP), will require a complex electrical power system which can deliver power to multiple propulsor motors from gas turbine driven generators.
Armstrong, M. +6 more
core +1 more source
Small, EarlyView.This review focuses on capability of Gallium Nitride (GaN)‐based supercapacitors, bordering the advancement from porous architecture to novel hybrid nanostructures. It systematically investigates synthesis approaches and charge storage mechanisms that generate remarkable energy densities and competent cyclic stability.
Farasat Haider +7 more
wiley +1 more source
Fault ride‐through control based on voltage prioritization for grid‐forming converters
IET Renewable Power Generation, 2023 This paper discusses that the existing grid codes on the fault ride‐through (FRT) operation have certain complications to be implemented in the grid‐forming (GFM) converters.
Saman Dadjo Tavakoli +3 more
doaj +1 more source
DC protection of a muti-terminal HVDC network featuring offshore wind farms [PDF]
, 1949 A protection scheme for DC faults has been designed for a multi-terminal HVDC network used to transfer energy from three large offshore wind farms to shore.
Parker, Max +2 more
core +3 more sources
Southern Economic Journal, EarlyView.ABSTRACT American municipalities increasingly regulate panhandling. That regulation is controversial. The determinants of panhandling activeness are unknown, and it is doubted whether panhandling activity responds rationally to incentives. To shed light on these issues, we collect data on hundreds of panhandlers and the passersby they solicit at ...
Peter T. Leeson +2 more
wiley +1 more source
Fault ride-through of renewable energy conversion systems during voltage recovery
Journal of Modern Power Systems and Clean Energy, 2016 Asymmetrical voltage swells during recovery of a short-circuit fault lead to fluctuations in the dc-link voltage of a renewable energy conversion system (RECS), and may induce reversed power flow and even trip the RECS. This paper studies characteristics
Ruiqi Li, Hua Geng, Geng Yang
doaj +1 more source
Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]
, 2009 The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Adam, G.P. +5 more
core
Handling of unbalanced faults in HVDC-connected wind power plants [PDF]
, 2017 High-voltage DC (HVDC) connections enable integration of wind power plants located very far from shore. The decoupled AC offshore grid comprises multiple WT converters, and the voltage magnitude and frequency is primarily controlled by the offshore high ...
Gomis Bellmunt, Oriol +3 more
core +2 more sources