Results 21 to 30 of about 31,841 (254)

Voltage-based droop control of renewables to avoid on-off oscillations caused by overvoltages [PDF]

open access: yes, 2013
To achieve the environmental goals set by many governments, an increasing amount of renewable energy, often delivered by distributed-generation (DG) units, is injected into the electrical power system.
De Kooning, Jeroen   +3 more
core   +1 more source

The Comparison Study of Short-Term Prediction Methods to Enhance the Model Predictive Controller Applied to Microgrid Energy Management [PDF]

open access: yes, 2017
Electricity load forecasting, optimal power system operation and energy management play key roles that can bring significant operational advantages to microgrids.
Da Costa Mendes, Paulo Renato   +5 more
core   +8 more sources

Grid-Forming-Mode Operation of Boost-Power-Stage Converter in PV-Generator-Interfacing Applications

open access: yesEnergies, 2017
The application of constant power control and inclusion of energy storage in grid-connected photovoltaic (PV) energy systems may increase the use of two-stage system structures composed of DC–DC-converter-interfaced PV generator and grid-connected ...
Jukka Viinamäki   +2 more
doaj   +1 more source

Grid Forming Control for Power Converters Based on an Inertial Phase Locked Loop (IPLL)

open access: yesIEEE Access, 2023
Inertia emulation is claimed to play a decisive role in the regulation and management of frequency in modern electrical systems. The support offered by renewable energy power plants and distributed generators is key to diminish the rate of change of ...
Andres Tarraso   +4 more
doaj   +1 more source

The adequacy of the present practice in dynamic aggregated modelling of wind farm systems [PDF]

open access: yes, 2016
Large offshore wind farms are usually composed of several hundred individual wind turbines, each turbine having its own complex set of dynamics. The analysis of the dynamic interaction between wind turbine generators (WTG), interconnecting ac cables, and
Dyke, K   +3 more
core   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

open access: yes, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden   +11 more
core   +1 more source

Validation Aspects for Grid-Forming Converters Based on System Characteristics and Inertia Impact

open access: yesEnergies, 2023
Grid-forming converters are considered a key technology for electrical grids with a high share of renewable energy. However, there is a lack of a general, robust and verifiable definition of what constitutes this behaviour. Therefore, this paper presents
Julian Struwe   +2 more
doaj   +1 more source

Developing vanadium redox flow technology on a 9-kW 26-kWh industrial scale test facility: Design review and early experiments [PDF]

open access: yes, 2018
Redox Flow Batteries (RFBs) have a strong potential for future stationary storage, in view of the rapid expansion of renewable energy sources and smart grids.
Alotto, Piergiorgio   +3 more
core   +1 more source

Modeling and Control of Grid Forming Converters: A Systematic Review

open access: yesIEEE Access
In electrical power systems where the proportion of synchronous generators (SG) is gradually decreasing, grid-forming (GFM) converters need to be installed and controlled to meet all the system requirements that SGs have provided to date.
Macit Tozak   +3 more
doaj   +1 more source

Improved Dual Closed-Loop Control for Modular Multilevel Converters Based on Voltage Drop on Grid Impedance [PDF]

open access: yesDianli jianshe
[Objective] As renewable power bases gradually expand from load centers to remote areas such as deep offshore, deserts, and barren lands, using grid-forming voltage source converter-based high voltage direct current (VSC-HVDC) transmission technology is ...
LIU Shan, LIU Qi, ZHU Lin, YAN Jun, CHI Chengbin, SUN Zengjie
doaj   +1 more source

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