Results 41 to 50 of about 171,662 (340)

Power Quality Improvement Wind Energy System Using Cascaded Multilevel Inverter [PDF]

open access: yes, 2013
In this paper, a wind energy conversion system based on a cascaded H-bridge multilevel inverter (CHBMLI) topology has been proposed to be used for the grid interface of large split winding alternators (SWAs).
A. S., Kumar, J.S., Sathiyanarayanan
core   +2 more sources

A Robust Phase-Lock-Loop for Grid-Following Converters

open access: yes2024 IEEE 15th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
This work was supported by the National Natural Science Foundation of China under Grant 62173148 and 52377186.
Ying, Gengning   +6 more
openaire   +2 more sources

Grid‐forming requirements based on stability assessment for 100% converter‐based Irish power system

open access: yesIET Renewable Power Generation, 2022
The fault response of a 100% converter‐based system can be significantly different to that of a synchronous generator‐based system, considering the lower capacity headroom, but flexible control capability, of power electronic converters.
Xianxian Zhao   +2 more
doaj   +1 more source

Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]

open access: yes, 2017
This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert   +4 more
core   +3 more sources

Stability Boundary Characterization and Power Quality Improvement for Distribution Networks

open access: yesEnergies
With the increasing proportion of distributed generators (DGs), distribution networks usually include grid forming (GFM) and grid following (GFL) converters.
Min Zhang   +6 more
doaj   +1 more source

W-band waveguide-packaged InP HEMT reflection grid amplifier [PDF]

open access: yes, 2006
This letter presents a 79-GHz broadband reflection-type grid amplifier using spatial power combining to combine the power of 64 unit cells. Each unit cell uses a two-stage cascade configuration with InP HEMTs arranged as a differential pair.
Cheung, Chun-Tung   +3 more
core   +1 more source

Power Quality Enhancement of Remote Gas Field Generations with Smart Power Converters

open access: yesEnergies, 2023
Direct power generation near gas fields offers numerous benefits, including optimized economic efficiency and reduced environmental impact. Moreover, building on-site greenhouses emerges as a promising approach to further minimize carbon emissions and ...
Wenze Li, Rui Liu, Yunwei Li
doaj   +1 more source

Multi-terminal HVDC grids with inertia mimicry capability [PDF]

open access: yes, 2016
The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting offshore wind energy. In this study,
Gharehpetian, Gevorg B.   +4 more
core   +2 more sources

Envelope-based Modeling for Single-Phase Grid-Following and Forming Converters

open access: yes2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics (COMPEL), 2022
The study of the interaction with the grid, including synchronization, controller design and stability assessment for 1f grid-following (GFL) and grid-forming (GFM) power converters requires an efficient modeling tool to design universal grid-connected converters considering the different grid scenarios.
Azcondo, Francisco J.   +3 more
openaire   +2 more sources

A multifunctional dynamic voltage restorer for power quality improvement [PDF]

open access: yes, 2018
Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien   +2 more
core   +1 more source

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