Results 1 to 10 of about 13,662 (169)
Applied Sciences, 2022 This paper proposes a GPS receiver vector frequency-locked loop-assisted phase-locked loop (VFAPLL) structure based on the maximum likelihood estimation (MLE) method for highly dynamic weak-signal scenarios. In this structure, the loop structure does not
Na Li, Shufang Zhang, Yi Jiang
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Analysis and improvement of fourth‐order generalised integrator based phase‐locked loop
IET Power Electronics, 2021 The fourth‐order generalised integrator is very suitable for single‐phase phase‐locked loop because it can provide orthogonal signal conveniently and block harmonic voltages effectively. In the conventional fourth‐order generalised integrator based phase‐
Jinbo Li +4 more
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Research on frequency adaptive of fans based on harmonicextraction technology
Journal of Hebei University of Science and Technology, 2021 In order to solve the problem of voltage distortion and frequency fluctuation caused by harmonic interference of wind turbines which affects the stable operation of wind turbines connected to the grid,a frequency adaptive phase lock methodwas proposed ...
Xueyou ZHANG, Shan HE, Wenlong LI
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IET Generation, Transmission & Distribution, 2022 A stabiliser is designed based on the phase compensation method to suppress the instability of wind‐turbine type‐4 in the low frequency mode [direct current voltage loop mode and phase‐locked loop mode].
Jili Peng +4 more
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Design and Experimentation of a Single-Phase PLL With Novel OSG Method
IEEE Access, 2022 Different phase-locked loop algorithms applied to three-phase grid voltages implement a closed control loop based on the Park transform to obtain the grid voltage instantaneous phase and frequency.
Manuele Bertoluzzo +2 more
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A Three-Phase Frequency-Fixed DSOGI-PLL With Low Computational Effort
IEEE Access, 2023 This paper offers a detailed analysis as well as a tuning and discretization approach of the presented frequency-fixed dual second order generalized integrator based phase-locked loop (FFDSOGI-PLL) for three-phase power systems.
Benjamin Hoepfner, Ralf Vick
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Frequency-Locked Loop Based on a Repetitive Controller for Grid Synchronization Systems
IEEE Access, 2020 The frequency-locked loop based on a second-order generalized integrator has been widely used in grid synchronization systems but featuring unfavorable harmonics filtering performance. To solve this issue, a frequency-locked loop based on multiple second-
Jiayi Geng +5 more
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Electronics Letters, 2022 A novel frequency‐to‐voltage converter based phase‐locked loop (PLL) is proposed to overcome the inability of a frequency‐to‐voltage converter based frequency‐locked loop to lock phase.
Z. M. Saifullah +3 more
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Photonics, 2022 We report feedback-induced frequency oscillations using a power-split-ratio through asymmetric dual-loop optical feedback (Loop I: ~2.2 km and Loop II: ~20 m) subject to a self-mode-locked two-section QDash laser emitting at 1550 nm and operating at 21 ...
Tahani A. Alrebdi +2 more
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Carrier tracking algorithm based on joint acquisition of frequency locked loop and phase locked loop
MATEC Web of Conferences, 2017 Aiming at the problem of frequency step in the frequency lock loop (FLL) - phase lock loop (PLL) carrier tracking algorithm’s conversion state, presenting an improved algorithm: PLL and FLL joint acquisition to replace the single FLL acquires frequency ...
Gao Kang, Zhao Qiang, Peng BaoTong
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