Results 41 to 50 of about 57,605 (331)

Research on Three-phase Unbalance of Micro-grid Based on Active Disturbance Rejection Control

open access: yes发电技术, 2020
Under the condition of three-phase unbalanced load in micro-grid, three-phase four-leg inverter can solve the unbalanced three-phase output voltage because of unbalanced load.
Mengran QIAN, Hui LI, Xinxiu LIU
doaj   +1 more source

Analysis of drawbacks and constraints of classification algorithms for three-phase voltage dips [PDF]

open access: yes, 2018
Voltage events are one of the most common and harmful disturbances of power electric systems. Voltage dips, swells and interruptions are included under this heading.
Carrica, Daniel Oscar   +5 more
core   +1 more source

Asymmetric switch costs in numeral naming and number word reading: Implications for models of bilingual language production [PDF]

open access: yes, 2016
One approach used to gain insight into the processes underlying bilingual language comprehension and production examines the costs that arise from switching languages.
Peressotti, Francesca   +2 more
core   +6 more sources

Control of DFIG-WT under unbalanced grid voltage conditions [PDF]

open access: yes2009 IEEE Energy Conversion Congress and Exposition, 2009
The voltage oriented control in the synchronous reference frame (VOC-SRF) have been extensively used for controlling wind turbines based on doubly fed induction generators (DFIG-WTs) through the rotor side converter of a back to back power processor.
Luna Alloza, Álvaro   +5 more
openaire   +3 more sources

Alone Self-Excited Induction Generators [PDF]

open access: yes, 2016
In recent years, some converter structures and analyzing methods for the voltage regulation of stand-alone self-excited induction generators (SEIGs) have been introduced.
Doser, TL, Kesler, S
core   +2 more sources

Grid-connected converter control during unbalanced grid conditions based on delay signal cancellation

open access: yesInternational Transactions on Electrical Energy Systems, 2018
Considering the recent trend in the development, it has become very hard to imagine modern power system without the integration of power electronic devices. A grid connected converter will be on the forefront of future energy trading, while simultaneously striving to offer good dynamic behaviour and operation in full accordance with the relevant grid ...
Bane Popadic   +4 more
openaire   +1 more source

Distorted Unbalanced Grid Voltage Modulated Direct Power Control for Three-Phase Grid-Connected Inverters

open access: yesIEEE Open Journal of Power Electronics
In this paper, a linearized direct power control strategy for grid-connected inverters under distorted unbalanced grid voltage is proposed. The grid-connected inverters usually suffer from distorted unbalanced grid condition, which causes output active ...
Yi-Hung Liao   +2 more
doaj   +1 more source

Passivity-Based Control Strategy for SMES Under an Unbalanced Voltage Condition

open access: yesIEEE Access, 2018
This paper presents a novel nonlinear control strategy for a superconducting magnetic energy storage (SMES) system during network unbalance. Grid voltage unbalances tend to substantially degrade the operation of a SMES system; conventional control ...
Yong Lei, Xiaodong Lin, Yingwei Zhu
doaj   +1 more source

Algorithms for Coloring Quadtrees

open access: yes, 1999
We describe simple linear time algorithms for coloring the squares of balanced and unbalanced quadtrees so that no two adjacent squares are given the same color.
Bern, Marshall W.   +2 more
core   +2 more sources

Remote power control strategy based on virtual flux approach for the grid tied power converters [PDF]

open access: yes, 2018
The control of active and reactive power for the Renewable Energy Sources (RES) based power plants are very important. The injection of active and reactive power to the grid is normally controlled at the Point of Common Connection (PCC) where this point ...
Candela García, José Ignacio   +4 more
core   +1 more source

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