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Rostamipour, Alireza, Abdi, Mehdi. (1404). Adaptive Phase-Locked Loop Utilizing Sliding Discrete Fourier Transform for Accurate Synchronization and Enhanced Power Quality within Distribution Networks. سامانه مدیریت نشریات علمی, (), -. doi: 10.22098/joape.2025.16236.2254
Alireza Rostamipour; Mehdi Abdi. "Adaptive Phase-Locked Loop Utilizing Sliding Discrete Fourier Transform for Accurate Synchronization and Enhanced Power Quality within Distribution Networks". سامانه مدیریت نشریات علمی, , , 1404, -. doi: 10.22098/joape.2025.16236.2254
Rostamipour, Alireza, Abdi, Mehdi. (1404). 'Adaptive Phase-Locked Loop Utilizing Sliding Discrete Fourier Transform for Accurate Synchronization and Enhanced Power Quality within Distribution Networks', سامانه مدیریت نشریات علمی, (), pp. -. doi: 10.22098/joape.2025.16236.2254
Rostamipour, Alireza, Abdi, Mehdi. Adaptive Phase-Locked Loop Utilizing Sliding Discrete Fourier Transform for Accurate Synchronization and Enhanced Power Quality within Distribution Networks. سامانه مدیریت نشریات علمی, 1404; (): -. doi: 10.22098/joape.2025.16236.2254

Adaptive Phase-Locked Loop Utilizing Sliding Discrete Fourier Transform for Accurate Synchronization and Enhanced Power Quality within Distribution Networks

Journal of Operation and Automation in Power Engineering
مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از تاریخ 06 آذر 1404    اصل مقاله (2.98 M)
نوع مقاله: Research paper
شناسه دیجیتال (DOI): 10.22098/joape.2025.16236.2254
نویسندگان
Alireza Rostamipour* ؛ Mehdi Abdi
Department of Electrical Power Engineering, Islamic Azad University Mashhad Branch, Mashhad.
چکیده
This study presents an advanced Frequency Adaptive Sliding Discrete Fourier Transform-based Phase-Locked Loop (FASDFT-PLL) for grid synchronization and power quality enhancement in distribution networks. Traditional PLL techniques, such as SDFT-PLL and MSTOGI-PLL, often struggle with phase inaccuracies, slow convergence, and poor tracking under distorted grid conditions or frequency variations. The proposed FASDFT-PLL dynamically adjusts the observation window size in real time, enabling accurate extraction of the fundamental voltage component, phase angle, and frequency, even with various zero crossings, harmonics, and nonlinear loads. To validate its performance, the method is tested under multiple conditions. Compared to conventional techniques, FASDFT-PLL exhibits faster convergence, higher phase tracking accuracy, and improved robustness against frequency deviations and harmonic distortions. The proposed method is further integrated with a shunt active power filter (SAPF), demonstrating its effectiveness in maintaining power quality and reducing harmonic distortion. Simulation results confirm that FASDFT-PLL significantly outperforms existing PLL algorithms, making it a promising solution for modern power systems.
کلیدواژه‌ها
FASDFT؛ phase-locked loop؛ active filters؛ power quality؛ harmonic reduction
مراجع
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