Results 31 to 40 of about 1,954,001 (140)

Research on Commutation Failure in Multi-feed HVDC Transmission System

, 2020
HVDC transmission systems present a risk of commutation failure. For multi-infeed HVDC transmission systems, due to the interaction between AC and DC systems, the commutation failure of a single inverter station may cause multiple inverter stations to ...
Hao YU, Jiaming WANG, Wuhui CHEN
core   +1 more source

Variable Extinction Angle Control Strategy Based on Virtual Resistance to Mitigate Commutation Failures in HVDC System

IEEE Access, 2020
To mitigate commutation failures (CFs) and minimize the instability of HVDC systems due to AC faults or control mode ambiguity, a constant extinction voltage-time area based control strategy with virtual resistance is proposed.
Zhanhong Wei, Wanliang Fang, Jun Liu
doaj   +1 more source

Novel Detection Method for Consecutive DC Commutation Failure Based on Daubechies Wavelet with 2nd-Order Vanishing Moments

Energies, 2018
Accurate detection and effective control strategy of commutation failure (CF) of high voltage direct current (HVDC) are of great significance for keeping the safe and stable operations of the hybrid power grid.
Tao Lin, Ziyu Guo, Liyong Wang, Rusi Chen, Ruyu Bi   +4 more
doaj   +1 more source

Peer Versus Top Management Communication and Energy‐Saving Behavioural Intentions in the Workplace: The Moderating Role of Personalised Framing

Business Strategy and the Environment, EarlyView.
ABSTRACT Employee engagement is pivotal for corporate sustainability, yet the role of information design in internal employee communication remains under‐specified. Drawing on Construal Level Theory, this study examines whether the effect of information sender (peer vs top management communication) on employees' energy‐saving behavioural intentions ...
Franziska Brack
wiley   +1 more source

An Artificial Neural Network Based Strategy for Commutation Failure Forecasting in LCC-HVDC Transmission Networks

, 2023
Commutation failure (CF) is a major challenge associated with line-commutated converter high voltage dc (LCC-HVdc) systems. Faults at the inverter ac systems are regarded as main cause of commutation failure.
Kimia Ghaffari (10332005), Jinghan He (6458033), Kashem M Muttaqi (13589731), Sohrab Mirsaeidi (20257917), Dalila Mat Said (12413386), Fuxiang Shang (20260779)   +5 more
core   +1 more source

Teaming Up for Sustainability: Understanding Different Types, Projects, and Enablers of Employee Sustainability Teams

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Employee sustainability teams—groups collaborating continuously and voluntarily on sustainability initiatives—can serve as a bottom‐up driver for organizational change. Despite their potential, however, their role and contributions are underexplored. To fill this gap, our multi‐case study examines 59 projects by 13 teams across three companies
Jennifer Adolph, Markus Beckmann, Katrin Schwarzfischer, Lena Ries   +3 more
wiley   +1 more source

Different Levels, Same Relations? A Meta‐Analysis on the Homology of the Nomological Network of (Daily) Work Engagement

Journal of Organizational Behavior, EarlyView.
ABSTRACT Work engagement has garnered significant attention from researchers and practitioners in recent decades, and several meta‐analyses have examined its stable, between‐person correlates. However, work engagement also has a dynamic component, meaning that it varies daily, across situations, and within individuals.
Jan Luca Pletzer, Nadine Planken, Kimberley Breevaart, Despoina Xanthopoulou, Arnold B. Bakker   +4 more
wiley   +1 more source

Arc root commutation from moving contacts in low voltage devices [PDF]

, 2000
This paper focus on the arc commutation from a moving contact and in particular on the anode motion of a high current arc in low voltage current limiting circuit breakers.
Weaver, P.M., J.W. McBride, Pechrach, K., K. Pechrach, McBride, J.W., P.M. Weaver   +5 more
core   +1 more source

Quantization of Polaritons Confined in Dielectric Structures

Laser &Photonics Reviews, EarlyView.
This study addresses the limitations of the Hopfield model of strong light‐matter coupling in the case of structured dieletrics. A method to derive quantum models in the polariton basis using Bogoliubov transformation and third quantization is introduced, demonstrating how to boost interaction strength and engineer nonlocal interactions for strongly ...
Amir Rahmani, Dogyun Ko, Maciej Dems, Andrzej Opala, Michał Matuszewski   +4 more
wiley   +1 more source

Micro‐transitions and work identity: The case of academic entrepreneurs

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary This paper examines how academic entrepreneurs—scientists who found research‐based startups while remaining in academia—construct and sustain their professional identities amid frequent transitions between academic and entrepreneurial roles.
Marouane Bousfiha, Henrik Berglund
wiley   +1 more source