Results 81 to 90 of about 142,307 (309)

Dynamic modelling of wind turbine and power system for fault ride-through analysis [PDF]

, 2010
This paper presents a Simulink model of a wind power system for the holistic analysis of wind turbine and power grid during grid faults, aiming to investigate wind turbine Fault Ride-Through performance.
Anaya-Lara, Olimpo, Leithead, William, Zhang, Fan   +2 more
core  

Community intermediary strategies and tactics to close digital divides and enhance equitable technology use in everyday life

Journal of the Association for Information Science and Technology, EarlyView.
Abstract Online technologies are required for accessing essential services, such as healthcare, transportation, and education. Challenges to online technology access can prevent resource‐constrained communities from connecting to these services. Human intermediaries who act in the middle space between technology and the person using the technology may ...
Marcy G. Antonio, Alicia Stone, Tawanna Dillahunt, Lorraine Buis, Tiffany C. Veinot   +4 more
wiley   +1 more source

Parental involvement and engagement during COVID‐19 lockdowns: School staff and parents' reflections about children's learning at home

British Educational Research Journal, EarlyView.
Abstract Valuing parental engagement, as part of home–school collaboration, can benefit children's learning. This article focuses on parents and school‐based staff's (N = 120) experiences of children's learning occurring at home during the COVID‐19 lockdowns (2020–2021), both school‐mandated and other learning activities.
Ashley Brett, Bonny L. Hartley, Deborah Wallace, Adewale Magaji, Lorraine Smith, Rachel Wolfendale   +5 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

Debunking the Myth: A Dive Into the Role of Relational Capital in Sustainable Food Production Systems

Business Strategy and the Environment, EarlyView.
ABSTRACT The shift towards sustainable food production is essential to address the urgent dual challenges of climate change and population growth, with agricultural cooperatives playing a vital role in this transformation. However, many cooperatives struggle to deliver the expected value to their members.
Ismail Badraoui, Tarik Saikouk, Nejib Fattam, Ahmed Hamdi, Vikas Kumar   +4 more
wiley   +1 more source

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 RIDE-THROUGH CAPABILITY AND DAMPING IMPROVEMENT IN DFIG [PDF]

, 2016
Doubly-fed induction generator wind turbine is susceptible to faults and requires crowbar protection. When the crowbar is triggered, the rotor is short circuited over the crowbar impedance.
Dolara, Alberto, G., Sava, Grimaccia, Francesco, Leva, Sonia, M. Q., Duong, Mussetta, Marco   +5 more
core  

ESG Assurance and Dividends: Evidence From 18 Countries in Africa

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the impact of environmental, social and governance (ESG) assurance on a firm's dividend payout policies within the unique African context. Using a staggered difference‐in‐differences (DiD) model, this study examines how voluntary third‐party assurance of ESG reports influences firms' dividend payout policies compared to ...
Samuel Karanja Kogi, June Cao
wiley   +1 more source

The Degradation of Access‐Based Business Models: Customer Misbehavior and Shared Mobility

Business Strategy and the Environment, EarlyView.
ABSTRACT Access‐based services are considered one of the strategies to embed sustainability in business models. Yet, because the evolution of these business models has been overlooked, we do not know whether their promise to create triple value is sustained.
Andres Camacho, Carmen Valor
wiley   +1 more source