Results 91 to 100 of about 46,909 (228)

Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems [PDF]

, 2016
When a pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the stations and dc solid-state transformers on healthy cables continue contributing to power transfer, rather than blocking.
Li, Rui, Williams, Barry, Xu, Lie, Yao, Liangzhong   +3 more
core   +1 more source

Governing Transnational Commons: How International Treaties and Multi‐Stakeholder Organizations Shape Cooperation and Conflict

Journal of Management Studies, EarlyView.
Abstract When common‐pool resources such as freshwater, clean air, and fisheries span national borders, the collective action problems encountered are particularly severe. This study explores the role of polycentric governance systems in overcoming these pressing problems, which frequently underlie global grand challenges. Integrating political economy
Amol M. Joshi, David Antons, Erk P. Piening, Christina Dienhart, Torsten‐Oliver Salge   +4 more
wiley   +1 more source

DC transformer requirements and fault operation analysis in PV medium voltage DC power collection system

The Journal of Engineering, 2019
The large PV medium-voltage (MV) DC power collection system is more efficient than the traditional AC collection system, which provides an alternative for future PV applications.
Xi Xinze, Wang Jianhua, Gao Shang, Zhang Mingqin, Li Peixin, Luo Fangfang, Gu Wei   +6 more
doaj   +1 more source

War as a Phenomenon of Inquiry in Management Studies

Journal of Management Studies, EarlyView.
Abstract We argue that war as a phenomenon deserves more focused attention in management. First, we highlight why war is an important and relevant area of inquiry for management scholars. We then integrate scattered conversations on war in management studies into a framework structured around three building blocks – (a) the nature of war from an ...
Fabrice Lumineau, Arne Keller
wiley   +1 more source

Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing [PDF]

, 2012
Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Finney, Stephen, Parker, Max, Ran, Li
core   +1 more source

Desired and Feared Identities and Their Role in Occupational Identity Regulation

Journal of Management Studies, EarlyView.
Abstract This paper extends theory by showing how occupational identity regulation operates jointly through both desired and feared identities which, in combination, enforce normative control. Taking a narrative identity perspective and drawing on an ethnographic and interview‐based study of veterinarians, we make three principal contributions to our ...
Sarah Page‐Jones, Andrew D. Brown
wiley   +1 more source

Comparative Performance Evaluation of Wind Energy Systems Using Doubly Fed Induction Generator and Permanent Magnet Synchronous Generator

Wind
Wind energy has become a cornerstone of sustainable electricity generation, yet the reliable integration of wind energy conversion systems (WECSs) into modern grids remains challenged by dynamic variations in wind speed and stringent fault ride-through ...
Areeg Ebrahiem Elngar, Asmaa Sobhy Sabik, Ahmed Hassan Adel, Adel S. Nada   +3 more
doaj   +1 more source

Fault-Tolerant Converter with a Modular Structure for HVDC Power Transmitting Applications [PDF]

, 2017
For the high-voltage direct-current (HVDC) power transmission system of offshore wind power, dc/dc converters are the potential solution to collect the power generated by off-shore wind farms to HVDC terminals.
Cao, Wenping, Chen, Guipeng, Chen, Huifeng, Finney, Stephen J., Hu, Yihua, Jiang, Lin, Li, Peng, Liu, Yang   +7 more
core   +2 more sources

Reading Nietzsche in an Age of Conspiracy Theories

Modern Theology, EarlyView.
Abstract This essay considers Friedrich Nietzsche's critique of Christian morality as a template for interpreting the epistemology of modern conspiracy theorists. The first section elucidates Nietzsche's notion of ressentiment as it can be applied to contemporary conspiracism. The effectiveness of this comparative assessment thus raises the question of
J.W. Olson
wiley   +1 more source

Development of HVRT and LVRT Control Strategy for PMSG-Based Wind Turbine Generators

Energies, 2020
Various challenges are acknowledged in practical cases with high wind power penetration. Fault ride-through (FRT) capability has become the most dominant grid integration requirements for the wind energy conversion system worldwide. The high voltage ride-
Liang Yuan, Ke Meng, Jingjie Huang, Zhao Yang Dong, Wang Zhang, Xiaorong Xie   +5 more
doaj   +1 more source