Results 101 to 110 of about 153,808 (271)

Performance optimization of VIENNA rectifier based on SVM under unbalanced grid

open access: yesDianzi Jishu Yingyong, 2019
On the basis of the steady state analysis of the VIENNA rectifier, an improved direct synchronous decoupling method is used to model the current inner loop, and a small amount of power compensation is added to expand the working area to adapt to ...
Wang Da, Shao Ruping, Dong Feiju
doaj   +1 more source

Analysis, modelling and design considerations for the excitation systems of synchronous generators [PDF]

open access: yes, 2017
The traditional generating set is usually comprised of a classical, wound-field, salient-pole or cylindrical rotor synchronous generator, excited by a separate smaller machine, via a rotating, uncontrolled diode rectifier.
Brown, Neil   +3 more
core   +3 more sources

High frequency, single/dual phases, large AC/DC signal power characterization for two phase on-silicon coupled inductors [PDF]

open access: yes, 2017
In this work, a new set-up is presented to characterize the large signal electrical parameters of on-Silicon integrated coupled inductors for Power Supply on Chip.
Fernandez, C.   +4 more
core   +1 more source

A Coordinated Control Strategy for Current Zero-Crossing Distortion Suppression and Neutral-Point Potential Balance in Unidirectional Three-Level Back-to-Back Converters

open access: yesMachines
Unidirectional multilevel back-to-back (BTB) converters are widely employed in renewable energy generation systems and in motor drives for coal mining operations. However, the current zero-crossing distortion (CZCD) on the grid side and the neutral-point
Haigang Wang, Zongwei Liu, Muqin Tian
doaj   +1 more source

Optimal Control for Vienna Rectifier in Unbalanced Conditions

open access: yesTransactions of Nanjing University of Aeronautics and Astronautics
The Vienna rectifier is a widely adopted solution for high-power rectification due to its efficiency and straightforward design. However, its performance can degrade under unbalanced three-phase voltage conditions, leading to current zero-crossing ...
LIU Chengzi   +3 more
doaj   +1 more source

Model Predictive Virtual-Flux Control of Three-Phase Vienna Rectifier Without Voltage Sensors

open access: yesIEEE Access, 2019
In this paper, a finite-control-set model predictive virtual-flux control (FCS-MPVFC) for a three-phase Vienna rectifier is developed and implemented to achieve voltage sensorless control, which is very robust to distorted grid-side voltage operation ...
Feng Yu   +3 more
doaj   +1 more source

Design and Evaluation of the Vienna Rectifier for a 5MW Wind Turbine System [PDF]

open access: yes, 2013
This thesis is a part of a larger project that deals with the design of an offshore DC wind turbine system. The aim of this thesis is to design and evaluate the Vienna rectifier for a 5 MW wind turbine system (WTS) with a permanent magnet synchronous ...
Nikouei, Mojgan
core   +1 more source

Dual separable feedback systems govern firing rate homeostasis. [PDF]

open access: yes, 2019
Firing rate homeostasis (FRH) stabilizes neural activity. A pervasive and intuitive theory argues that a single variable, calcium, is detected and stabilized through regulatory feedback.
Davis, Graeme W   +4 more
core  

A Weighted Control Strategy Based on Current Imbalance Degree for Vienna Rectifiers Under Unbalanced Grid

open access: yesMachines
Under unbalanced grid conditions, the three-phase Vienna rectifier exhibits significant voltage fluctuations in dc-link and asymmetric input currents. Traditional control methods cannot simultaneously suppress the voltage ripples in dc-link and balance ...
Haigang Wang, Zongwei Liu, Muqin Tian
doaj   +1 more source

Comprehensive Analysis of Vienna Rectifiers for Renewable Resources

open access: yesHighlights in Science, Engineering and Technology
The issue of energy has emerged as a significant subject of concern in contemporary discourse. The significance of the advancement of novel energy sources is progressively growing. Relevant strategies should aid in the advancement of power electronics.
openaire   +1 more source

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