Results 71 to 80 of about 53,468 (203)

Design of a High-Performance High-Pass Generalized Integrator Based Single-Phase PLL

, 2016
Grid-interactive power converters are normally synchronized to the grid using phase-locked loops (PLLs). The performance of the PLLs is affected by the non-ideal conditions in the sensed grid voltage such as harmonics, frequency deviations and dc offsets
John, Vinod, Kulkarni, Abhijit
core   +1 more source

Efficiency analysis of wide band-gap semiconductors for two-level and three-level power converters [PDF]

, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Collado Escolano, Alfonso, Gálvez, Eduardo, Lumbreras Carrasco, David, Mon González, Juan, Zaragoza Bertomeu, Jordi   +4 more
core   +1 more source

Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]

, 2015
Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P., Ahmed, Shehab, Gowaid, I. A., Holliday, Derrick, Williams, Barry W.   +4 more
core   +2 more sources

Coordination of SRF-PLL and Grid Forming Inverter Control in Microgrid with Solar PV and Energy Storage

Journal of Low Power Electronics and Applications
Recently, there has been a huge advancement in renewable energy integration in power systems. Power converters with grid-forming or grid-following topologies are typically employed to link these decentralized power sources to the grid.
V. Vignesh Babu, J. Preetha Roselyn, Prabha Sundaravadivel   +2 more
doaj   +1 more source

How many grid-forming converters are needed? – A techno-economic perspective

iEnergy
Renewable generation is rapidly increasing and transforming power systems toward “new-type power systems”. The integration of renewable energy resources necessitates a shift from conventional grid-following converters (GFLs) to advanced grid-forming ...
Guoxuan Cui, Hongyang Jia, Ning Zhang, Fei Teng   +3 more
doaj   +1 more source

An optimization method for capacity allocation of GFL and GFM converters considering equivalent impedance at point of common coupling

Zhejiang dianli
In hybrid wind farms with both grid-following （GFL） and grid-forming （GFM） converters， their capacity allocation significantly impacts the overall stability of the wind farm.
WANG Xinyi, LI Xiaolu, LIU Jinsong, LIN Shunfu   +3 more
doaj   +1 more source

Stability Boundary Characterization and Power Quality Improvement for Distribution Networks

Energies
With the increasing proportion of distributed generators (DGs), distribution networks usually include grid forming (GFM) and grid following (GFL) converters.
Min Zhang, Yi Long, Shuai Guo, Zou Xiao, Tianling Shi, Xin Xiang, Rui Fan   +6 more
doaj   +1 more source

Multilevel Converters: An Enabling Technology for High-Power Applications [PDF]

, 2009
| Multilevel converters are considered today as the state-of-the-art power-conversion systems for high-power and power-quality demanding applications.
García Franquelo, Leopoldo, Kouro, Samir, León Galván, José Ignacio, Martín Prats, María de los Ángeles, Portillo Guisado, Ramón Carlos, Pérez, Marcelo, Rodríguez, José   +6 more
core  

Stability of Interconnected DC Converters

, 2015
This paper addresses stability issues of DC networks with constant power loads (CPL). Common DC networks, such as automotive electrical systems and DC microgrids, typically have a step-up/down converter connected in one side to the main bus and, on the ...
Cezar, Gustavo, Rajagopal, Ram, Zhang, Baosen   +2 more
core   +1 more source

SCR Independent Polytopic Lyapunov Control for MMC HVDC Networks

IEEE Access
The growing High-Voltage Direct Current transmission networks require modern control strategies in converter stations to ensure reliable operation and uninterrupted energy supply, particularly under unstable and low Short-Circuit ratio conditions ...
Rohan Kamat Tarcar, Marjan Popov, Aleksandra Lekic   +2 more
doaj   +1 more source