Results 81 to 90 of about 142,195 (311)

A New Fast Peak Current Controller for Transient Voltage Faults for Power Converters [PDF]

, 2015
Power converters are the basic unit for the transient voltage fault ride through capability for most renewable distributed generators (DGs). When a transient fault happens, the grid voltage will drop suddenly and probably will also suffer a phase-jump ...
Carrasco Solís, Juan Manuel, Muñoz-Cruzado Alba, Jesús, Villegas-Núñez, Javier, Vite-Frías, José Alberto   +3 more
core   +2 more sources

Understanding Youth Assaults of Police Officers in Australia: A Power Threat Meaning Framework Analysis

Australian Journal of Social Issues, EarlyView.
ABSTRACT This study explores youth violence towards police officers in Australia through the Power Threat Meaning Framework (PTMF) to better understand the underlying factors contributing to such violence; focusing on power dynamics, childhood adversity, and trauma.
Dimitra Lattas, Kelly Hine, Catherine Creamer, Kelley Burton, Katelyn Davenport‐Klunder   +4 more
wiley   +1 more source

Dynamic active torque coordination strategy for torsional vibration suppression in wind turbines during grid fault recovery

International Journal of Electrical Power & Energy Systems
When the grid fault occurs, wind turbines are required to possess fault ride-through (FRT) capability and rapidly restore active power after fault clearance.
Cai Guang, Yan Xiangwu, Zhang Shurui, Ren Haoyang, Jia Jiaoxin, Zhou Fan   +5 more
doaj   +1 more source

Multifunctional scheme for frequency/voltage/stability control in HVDC line under concurrent cyber‐attacks and faults

IET Generation, Transmission & Distribution, 2022
This paper presents a control mechanism on high voltage direct current (HVDC) transmission line for frequency/voltage regulation, fault ride through (FRT) capability, and cyber‐attack/fault detection.
Reza Hemmati, Hossien Faraji
doaj   +1 more source

Current-limiting droop controller with fault-ride-through capability for grid-tied inverters [PDF]

, 2017
In this paper, the recently proposed current-limiting droop (CLD) controller for grid-connected inverters is enhanced in order to comply with the Fault-Ride-Through (FRT) requirements set by the Grid Code under grid voltage sags.
Konstantopoulos, G.C., Mayfield, M., Nikolaidis, V.C., Paspatis, A.G.   +3 more
core   +1 more source

Confessions of a Poverty Researcher: My Journey Through the Foothills of Scholarship

Australian Journal of Social Issues, EarlyView.
ABSTRACT This paper describes the key events, experiences and ideas that influenced the author's career as a poverty researcher. He describes how his early disillusion with economics was replaced by a spark of interest in social issues and how his migration from the UK to Australia in the mid‐1970s provided the impetus to begin what became a lifetime ...
Peter Saunders
wiley   +1 more source

Stability enhancement of a hybrid micro-grid system in grid fault condition [PDF]

, 2012
Low voltage ride through capability augmentation of a hybrid micro-grid system is presented in this paper which reflects enhanced reliability in the system. The control scheme involves parallel connected multiple ac-dc bidirectional converters.
15th International Conference on Electrical Machines and Systems, ICEMS 2012, Al-Durra, Ahmed, Ambia, Mir Nahidul, Caruana, Cedric, Muyeen, Syed M.   +4 more
core  

A novel FRT strategy for transformerless MMC to improve current differential protection performance under single-phase grounding faults

International Journal of Electrical Power & Energy Systems
AC/DC distribution networks are interconnected by converters such as modular multilevel converters (MMCs). In AC/DC distribution networks, single-phase grounding (SPG) faults can cause enormous challenges in relay protection.
Yuze Li, Peng Guo, Qianming Xu, Josep M. Guerrero   +3 more
doaj   +1 more source

Fault Tolerant Ancillary Function of Power Converters in Distributed Generation Power System within a Microgrid Structure [PDF]

, 2013
Distributed generation (DG) is deeply changing the existing distribution networks which become very sophisticated and complex incorporating both active and passive equipment.
DI TOMMASO, Antonino Oscar, GENDUSO, Fabio, MICELI, Rosario, RICCO GALLUZZO, Giuseppe   +3 more
core   +3 more sources

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

The Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source