Results 41 to 50 of about 74,380 (202)

A New Perspective of Wind Power Grid Codes Under Unbalanced and Distorted Grid Conditions

open access: yesIEEE Access, 2020
Increasing penetration of wind power has led power system operators worldwide to develop new grid codes for integration of a wind power plant (WPP) onto the grid. According to the grid codes issued by Federal Energy Regulatory Commission (FERC) in the US,
Md Moinul Islam   +3 more
doaj   +1 more source

Stochastic Linear Programming for Optimal Planning of Battery Storage Systems Under Unbalanced-uncertain Conditions

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
Battery energy storage system (BESS) has already been studied to deal with uncertain parameters of the electrical systems such as loads and renewable energies.
Reza Hemmati, Hasan Mehrjerdi
doaj   +1 more source

Керування машиною подвійного живлення з матричним перетворювачем в колі ротора при несиметрії напруг мережі живлення [PDF]

open access: yes, 2013
Control algorithms of doubly-fed induction generator with matrix converter under unbalanced grid voltages have been considered. Comparison of the strategies to improve the performance of DFIGs under unbalanced network conditions suggests that some ...
Дорошенко, Андрій Леонідович   +4 more
core  

Variable-Angle Phase-Shifted PWM for Multilevel Three-Cell Cascaded H-bridge Converters [PDF]

open access: yes, 2017
Multilevel cascaded H-bridge converters have become a mature technology for applications where high-power medium ac voltages are required. Normal operation of multilevel cascaded H-bridge converters assumes that all power cells have the same dc voltage ...
Freire Macías, Emilio   +6 more
core   +1 more source

A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter [PDF]

open access: yes, 2016
Grid connected Voltage Source Converters (VSCs) with LCL filters usually have voltage measurements at the filter capacitors, while it can be important to control the active or reactive power injection at the grid-side of the LCL filter, for instance at a
Candela García, José Ignacio   +5 more
core   +1 more source

A Robust Control Scheme for Renewable-Based Distributed Generators Using Artificial Hydrocarbon Networks

open access: yesEnergies, 2019
Distributed generators (DGs) based on renewable energy systems such as wind turbines, solar panels, and storage systems, are key in transforming the current electric grid into a green and sustainable network.
Antonio Rosales   +3 more
doaj   +1 more source

On the Enhancement of Generalized Integrator-based Adaptive Filter Dynamic Tuning Range [PDF]

open access: yes, 2020
International audienceMany phase-locked loop (PLL) or frequency-locked loop (FLL) use quadrature signals (directly or indirectly) as the input variables.
Ahmed, Hafiz, Benbouzid, Mohamed
core   +1 more source

Robust Bidirectional Power Control of Grid-Tied Inverters Under Unbalanced Grid Currents Conditions Using a Proportional-Integral-Resonant Controller and Symmetrical Component Extraction Method

open access: yesIEEE Access
This paper proposes a robust control strategy for grid-tied three-phase inverters operating under unbalanced grid currents conditions using a proportional-integral-resonant (PIR) controller integrated with a symmetrical component extraction method (SCEM ...
Haneen Ghanayem   +3 more
doaj   +1 more source

Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]

open access: yes, 2012
In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme   +4 more
core   +1 more source

Adaptive current-limiting control for grid-forming converter during unbalanced faults

open access: yesInternational Journal of Electrical Power & Energy Systems
Grid-forming converters are increasingly deployed to connect renewable energy sources to the grid, but their control behavior during unbalanced grid faults can affect system stability and protection.
Xinquan Chen, Zhe Yang
doaj   +1 more source

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