Results 11 to 20 of about 5,197,037 (318)

Tuning Method of a Grid-Following Converter for the Extremely-Weak-Grid Connection [PDF]

open access: yesIEEE Transactions on Power Systems, 2022
This paper proves that a grid-following converter can stably connect to a weak grid even short-circuit ratio (SCR) is 1. Root instability causes of this grid-following control are identified including fast control response, insufficient damping, and slow voltage support.
Chuanyue Li, Sheng Wang, Jun Liang
openaire   +1 more source

Internal Induced Voltage Modification for Current Limitation in Virtual Synchronous Machine

open access: yesEnergies, 2022
Virtual inertia control is a methodology to make inverter-based resources (IBR) behave like a synchronous machine. However, an IBR cannot fully emulate the response of synchronous machine because of its low-current capacity. When the inertial response of
Dai Orihara   +10 more
doaj   +1 more source

Transient Stability of Paralleled Virtual Synchronous Generator and Grid-following Inverter

open access: yesIEEE Transactions on Smart Grid, 2022
<p>The majority of inverter-based resources (IBRs) currently operate as grid-following inverters (GFLIs). These inverters exhibit certain stability issues when integrated in low-strength areas of the grid. To enhance the grid strength in a GFLI-dominant area, virtual synchronous generators (VSGs) are installed.
Si Phu Me   +4 more
openaire   +1 more source

A Grid Service Infrastructure for Mobile Devices [PDF]

open access: yes, 2005
One of the visions of Grid computing is to access computational resources automatically on demand to deliver the services required with appropriate quality. Because mobile devices are now increasingly common, an infrastructure is required to allow mobile
Guan, Tao   +8 more
core   +1 more source

Control of Grid-Following Inverters Under Unbalanced Grid Conditions

open access: yesIEEE Transactions on Energy Conversion, 2020
This paper proposes a new control scheme to eliminate the 3rd harmonic in the output currents of grid-following inverters under unbalanced grid conditions. Unbalanced grids adversely affect the performance of grid-following inverters due to the oscillations appearing on the DC-link voltage with a frequency twice the line frequency.
Seyed Fariborz Zarei   +5 more
openaire   +2 more sources

Evolutionary Computing within Grid Environment. [PDF]

open access: yes, 2007
Evolutionary computing (EC) techniques such as genetic algorithm (GA), genetic programming (GP), evolutionary programming (EP) and evolution strategies (ES) mimic nature through natural selection to perform complex optimisation processes that require ...
Tiwari, Ashutosh   +5 more
core   +1 more source

Advanced Local Grid Control System for Offshore Wind Turbines with the Diode-Based Rectifier HVDC Link Implemented in a True Scalable Test Bench

open access: yesEnergies, 2022
Diode-based HVDC link technology is considered an alternative to reduce the cost and complexity of offshore HVDC platforms. When this technology is used, the AC grid of the wind farm must be created artificially. This paper proposes an advanced frequency
Danilo Herrera   +5 more
doaj   +1 more source

A middleware independent grid workflow builder for scientific applications [PDF]

open access: yes, 2009
Grid workflow authoring tools are typically specific to particular workflow engines built into Grid middleware, or are application specific and are designed to interact with specific software implementations.
Meacham, Ken   +10 more
core   +1 more source

What is sand? Result from a UNEP/GRID-Geneva expert discussion

open access: yes, 2022
The Global Sand Observatory Initiative (GSOI) is UNEP/GRID-Geneva’s response to requests to identify knowledge gaps under the UNEA-4 Mineral Resource Governance resolution (UNEP/EA.4/Res.19).
UNEP/GRID-Geneva
core   +1 more source

An Overview on the Recent Advances of the Voltage Source Converter Control Modes in Terms of their Roles in Transmission Grid Ancillary Services

open access: yesENP Engineering Science Journal, 2022
Voltage Source Converters (VSC) are expected to be one of the major actors in future AC transmission grids. Their role includes the interconnection of renewable energy, from distributed sources such as residential PV to large Offshore Wind Farms (OWF ...
Rayane Mourouvin   +4 more
doaj   +1 more source

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