Results 31 to 40 of about 148,748 (316)
Grid-Synchronization Stability Analysis for Multi DFIGs Connected in Parallel to Weak AC Grids
Energies, 2019 Recent works have shown that phase-locked loop (PLL) synchronized wind turbines (WTs) suffer stability issues when integrated into weak grids. However, most of the current studies are limited to a single machine case, the interactions among the WTs are ...
Dong Wang +4 more
doaj +1 more source
Semina: Ciências Exatas e Tecnológicas, 2017 Os Sistemas de Energia Renovável (SER) tornaram-se uma alternativa atrativa frente às fontes de energia convencional, devido à necessidade de diversificar a matriz energética e assim garantir o abastecimento da demanda futura de eletricidade de uma forma
Sebastián Manrique Machado +1 more
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Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops [PDF]
, 2012 Coarse time quantization of delay profiles within ultrasound array systems can produce undesirable sidelobes in the radiated beam profile. The severity of these sidelobes is dependent upon the magnitude of phase quantization error - the deviation from ...
Cowell, DMJ +4 more
core +1 more source
IEEE Access, 2021 Synchronization is the key part to ensure the high performance of grid-connected systems. Phase-locked loop (PLL) is one of the most popular synchronizations due to its simple implementation and robustness under certain grid variations.
Jinming Xu +4 more
doaj +1 more source
Noncontact atomic force microscopy simulator with phase-locked-loop controlled frequency detection and excitation [PDF]
, 2006 A simulation of an atomic force microscope operating in the constant amplitude dynamic mode is described. The implementation mimics the electronics of a real setup including a digital phase-locked loop (PLL).
Adrian Wetzel +9 more
core +2 more sources
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018 The paper presents the results of simulation of a detector, implemented on the basis of a phase locked loop device (PLL), the mathematical modeling of signals with 8-QAM modulation, and investigates the influence of PLL parameters on the receiving ...
I. P. Maksymiv +3 more
doaj +1 more source
Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]
, 2016 This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore +3 more
core +2 more sources
Mathematics, 2022 Today, and especially with the growing interest in distributed renewable energy sources (DRESs), modern electric power systems are becoming more and more complex. In order to increase DRES penetration, grid side converter (GSC) control techniques require
Mansoor Alturki +3 more
doaj +1 more source
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
Degeneracy doubling and sublattice polarization in strain-induced pseudo-Landau levels [PDF]
, 2014 The degeneracy and spatial support of pseudo-Landau levels (pLLs) in strained honeycomb lattices systematically depends on the geometry -- for instance, in hexagonal and rectangular flakes the 0th pLL displays a twofold increased degeneracy, while the ...
Arkinstall, Jake +2 more
core +2 more sources