Results 31 to 40 of about 1,580,709 (290)

Comparative Analysis of Grid-Following (GFL) and Grid-Forming (GFM) Inverters: Control and Transition Capabilities

open access: yesElectrical Engineering and Energy
In recent years, interest in integration of renewable energy (RE) sources (particularly Wind Energy Systems - WES) into the electrical grid for sustainable, innovative solutions and a greener future continues to grow exponentially.
Fatih Burak, Hulusi Karaca
doaj   +1 more source

Direct AC voltage control for grid-forming inverters [PDF]

open access: yesJournal of Power Electronics, 2019
Grid-forming inverters usually use inner cascaded controllers to regulate output AC voltage and converter output current. However, at the power transmission system level where the power inverter bandwidth is limited, i.e., low switching frequency, it is difficult to tune controller parameters to achieve the desired performances because of control loop ...
Qorai, Taoufik   +5 more
openaire   +3 more sources

Development of Grid-Connected Inverter Experiment Modules for Microgrid Learning

open access: yesEnergies, 2019
New paradigms in the modern power system should be introduced to student of electrical engineering, or engineer in training, as early as possible. Besides class-room study, experimental exercise may be introduced to help the student understand the ...
Arwindra Rizqiawan   +2 more
doaj   +1 more source

Grid Tie Inverter in Photovoltaic System for Residential Application [PDF]

open access: yes, 2010
This paper presents a grid tie inverter (GTI) in photovoltaic, PV system for residential application. The proposed GTI will be switched with a combination switching strategy of square wave and the sinusoidal pulse width modulation, SPWM.
Tan, kheng kwang
core  

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Immunity of Grid-Forming Control Without Energy Storage to Transient Changes of Grid Frequency and Phase

open access: yesIEEE Open Journal of the Industrial Electronics Society
European grid operators in ENTSO-E and others with a significant amount of inverter-based generation are experiencing a reduction in system inertia and short-circuit power.
Norbert R. Klaes, Jens Fortmann
doaj   +1 more source

Grid-Forming Inverter with Simplified Virtual Synchronous Compensator Providing Grid Services and Grid Support [PDF]

open access: yes, 2021
This paper proposes a Simplified Virtual Synchronous Compensator (S-VSC) model with grid-forming capabilities for microgrid applications. Previous works have shown how the S-VSC can provide grid services (i.e., virtual inertia, current harmonic ...
Mallemaci, Vincenzo   +5 more
core   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Optimal parameter calibration for multiple droop controls on inverter-dominated power systems

open access: yesResults in Engineering
Inverter-dominated electrical power systems represent the future of the electrical sector worldwide. Currently, grid-forming inverters are presented as a solution to issues related to auxiliary services to ensure grid stability. These inverters use droop
Manuel Bravo-López   +2 more
doaj   +1 more source

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