Results 1 to 10 of about 22,786 (208)

Variable gradient-based phase locked loop for accurate frequency estimation of distorted grids [PDF]

Scientific Reports
A variable gradient-based phase locked loop (VG-PLL) is developed for distorted grids. Firstly, the large-signal model of the synchronous reference frame phase locked loop (SRF-PLL) with harmonic disturbances is established, and the large-signal model ...
Xiaoben Lei, Xinhua Hu, Jianwei Yang, Guangqi Li, Zhiyong Dai, Guoqing Wang   +5 more
doaj   +2 more sources

Integral‐type half‐tangent phase‐locked loop for more electric aircraft grids

IET Power Electronics, 2023
In this paper, an integral‐type half‐tangent phase‐locked loop (IHTan‐PLL) is proposed for the varying‐frequency AC grids of more electric aircraft (MEA).
Yiyun Zhao, Guangqi Li, Zhiyong Dai, Bingqiang Li, Hui Lin, Jianwei Yang   +5 more
doaj   +1 more source

Frequency‐to‐voltage converter based dual‐loop phase‐locked loop with variable phase locking capability

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, Paul M. Furth, SriHarsh Pakala, Alejandro Roman‐Loera   +3 more
doaj   +1 more source

Design of Efficient Phase Locked Loop for Low Power Applications

Engineering Proceedings, 2023
The phase-locked loop is a technique that has contributed significantly to technological advancements in many applications in the fast-evolving digital era.
Chandra Keerthi Pothina, Ngangbam Phalguni Singh, Jagupilla Lakshmi Prasanna, Chella Santhosh, Mokkapati Ravi Kumar   +4 more
doaj   +1 more source

Comparison of SOGI-FLL with SOGI-PLL for Single-Phase Grid-Connected Inverters [PDF]

E3S Web of Conferences, 2019
Phase locked loop (PLL) is a feedback system that has a vital role in the grid-connected inverter systems. The primary function of PLL is to obtain various grid information, such as magnitude, frequency, and phase.
Royan, Andromeda Trias, Facta Mochammad, Hermawan, Setiawan Iwan   +4 more
doaj   +1 more source

A synchronizing signal detection technique for grid voltage based on new CDSOGI-PLL

Xibei Gongye Daxue Xuebao, 2023
When the grid voltage contains many harmonics, the filtering effect of the phase-locked loop based on dual second-order generalized integrator (DSOGI-PLL) is not ideal, and the frequency of synchronous signal extracted through the DSOGI-PLL fluctuates. A
KE Shanwen, LI Yuren
doaj   +1 more source

Optimization of PLL frequency synthesizer [PDF]

Омский научный вестник, 2019
The influence of different configurations of phase-locked loop frequency (PLL) with integer coefficients on parameters of the PLL loop of the frequency synthesizer is considered.
G. A. Koshuk, I. A. Tikhonov, B. A. Kosarev   +2 more
doaj   +1 more source

A novel phase estimation method for renewable energy grid-connected equipments

Energy Reports, 2022
When renewable energy is applied to the power grid, it will cause problems such as harmonic interference and changes in grid frequency, resulting in harmonic distortion of the inverter and other renewable energy grid-connected equipments output current ...
Nanmu Hui, Xiaowei Han, Baoju Wu
doaj   +1 more source

Frequency-Adaptive Modified Comb-Filter-Based Phase-Locked Loop for a Doubly-Fed Adjustable-Speed Pumped-Storage Hydropower Plant under Distorted Grid Conditions

Energies, 2017
The control system of a doubly-fed adjustable-speed pumped-storage hydropower plant needs phase-locked loops (PLLs) to obtain the phase angle of grid voltage.
Wei Luo, Jianguo Jiang, He Liu
doaj   +1 more source

DC offset elimination method of Phase-locked loop based on novel generalized integrator

Energy Reports, 2021
When the renewable energy power is connected to the grid, distortion voltage interference and grid voltage frequency fluctuation will occur, which will cause the inverter output current to be abnormal.
Nanmu Hui, Yingying Feng, Xiaowei Han
doaj   +1 more source