Results 51 to 60 of about 11,768 (215)

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

Energy Science &Engineering, EarlyView.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian, Jun‐Bo Mao, Nurkhat Zhakiyev, Didar Yedilkhan, Ruslan Omirgaliyev, Du Changdong, Amirhossein Khosravi Sarvenoee, Ardashir Mohammadzadeh   +7 more
wiley   +1 more source

Power hardware in the loop validation of fault ride through of VSC HVDC connected offshore wind power plants

Journal of Modern Power Systems and Clean Energy, 2014
This paper presents the power hardware in the loop (PHIL) validation of a feed forward DC voltage control scheme for the fault ride through (FRT) of voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs). In the
Ranjan Sharma, Qiuwei Wu, Seung Tae Cha, Kim H. Jensen, Tonny W. Rasmussen, Jacob Ostegaard   +5 more
doaj   +1 more source

Stability Analysis in Multi-VSC (Voltage Source Converter) Systems of Wind Turbines [PDF]

Applied Sciences
In this paper, a holistic nonlinear state-space model of a system with multiple converters is developed, where the converters correspond to the wind turbines in a wind farm and are equipped with grid-following control. A novel generalized methodology is developed, based on the number of the system’s converters, to compute the equilibrium points around ...
Dimitrios Dimitropoulos, Xiongfei Wang, Frede Blaabjerg   +2 more
openaire   +2 more sources

Inertia emulation control strategy for VSC-HVDC transmission systems [PDF]

, 2013
There is concern that the levels of inertia in power systems may decrease in the future, due to increased levels of energy being provided from renewable sources, which typically have little or no inertia.
Adam, Grain Philip, Booth, Campbell, Bright, C.G., Roscoe, Andrew, Zhu, Jiebei   +4 more
core   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

A multifunctional dynamic voltage restorer for power quality improvement [PDF]

, 2018
Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien, Goňo, Radomír, Leonowicz, Zbigniew   +2 more
core   +1 more source

Embedding Optimization of Layouts via Distortion Minimization

Computer Graphics Forum, EarlyView.
Abstract Given an embedding of a layout in the surface of a target mesh, we consider the problem of optimizing the embedding geometrically. Layout embeddings partition the surface into multiple disk‐like patches, making them particularly useful for parametrization and remeshing tasks, such as quad‐remeshing, since these problems can then be solved on ...
A. Heuschling, I. Lim, L. Kobbelt
wiley   +1 more source

Comparative Analysis on Small-Signal Stability of Multi-Infeed VSC HVDC System With Different Reactive Power Control Strategies

IEEE Access, 2019
Voltage Source Converter based High Voltage Direct Current (VSC HVDC) technology is used more and more in modern power systems. Consequently, in the ac network, an increasing number of converters are appearing in mutual electrical proximity, thus forming
Goran Grdenic, Marko Delimar, Jef Beerten   +2 more
doaj   +1 more source

DC grids for integration of large scale wind power [PDF]

, 2011
It is widely recognized that the future wind power development in the Nordic region will be to a large extent be offshore. The most promising technology for that is the voltage source converter (VSC) HVDC. A review of the most important options and state-
Carlsson, Ola, Cutululis, Nicolaos Antonio, Geisler Eriksen, Anders, Haileselassie, Temesgen, Holbøll, Joachim, Stamatiou, Georgios, Sørensen, Poul Ejnar, Uhlen, Kjetil, Zeni, Lorenzo   +8 more
core   +1 more source

Topology assessment for 3 + 3 terminal offshore DC grid considering DC fault management [PDF]

, 2014
Peer ...
Jovcic, Dragan, Nguefeu, S., Taherbaneh, Mohsen, Taisne, J.P.   +3 more
core   +1 more source