Results 101 to 110 of about 277,270 (358)
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 +4 more
core
International Journal of Electrical Power & Energy SystemsAC/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 +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 +3 more
core +3 more sources
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 +7 more
wiley +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
A Hierarchical Control Strategy With Fault Ride-Through Capability for Variable Frequency Transformer [PDF]
, 2014 A variable frequency transformer (VFT) is being considered as a new alternative to the classical back-to-back high voltage direct current (HVDC) link for interconnection of two asynchronous networks. The VFT is a retrospective form of frequency converter
Ambati, Bharath Babu +4 more
core +1 more source
Balancing act: An autoethnographic study of one medical educator's first year as a mentor
Anatomical Sciences Education, EarlyView.Abstract Novice faculty mentors often struggle with the transition from mentee to mentor. Although they may face similar challenges, each mentor's experience and journey of professional identity formation is unique, influenced by their background, experiences, relationships, and context.
Andrew S. Cale
wiley +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 +5 more
core
Minimising the impact of disturbances in future highly-distributed power systems [PDF]
, 2017 It is expected that future power systems will require radical distributed control approaches to accommodate the significant expansion of renewable energy sources and other flexible grid devices.
Belloni, F.R. +11 more
core +1 more source
Comprehensive fault ride‐through scheme for doubly‐fed induction generators
The Journal of Engineering, 2018 With the growth of wind energy penetration in electricity transmission grids, fault ride‐through (FRT) ability is required in order to maintain the uninterrupted operation of wind farm in voltage disturbance scenarios. For widespread used doubly‐fed induction generator FRT issues, an auxiliary hardware circuit is adopted in large‐grid‐voltage drop ...
Fan Cheng +4 more
openaire +2 more sources