Results 271 to 280 of about 179,155 (337)

A 12.5-GHz Fractional-N Type-I Sampling PLL Achieving 58-fs Integrated Jitter

IEEE Journal of Solid-State Circuits, 2022
This article presents a fractional-N sampling type-I phase-locked loop (PLL). To overcome the impairments of a conventional type-I PLL, namely the frequency-tuning-dependent time offset and the narrow range of the sampling phase detector (SPD), which ...
M. Mercandelli, Alessio Santiccioli, A. Parisi, L. Bertulessi, Dmytro Cherniak, A. Lacaita, C. Samori, S. Levantino   +7 more
semanticscholar   +1 more source

Position-Estimation Deviation-Suppression Technology of PMSM Combining Phase Self-Compensation SMO and Feed-Forward PLL

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
The sensorless drive method of the permanent magnet synchronous motor (PMSM) has attracted wide attention for its low cost and high reliability. As a critical technology, a fast and high-precision rotor-position estimation is essential.
Gang Liu, Haifeng Zhang, Xinda Song
semanticscholar   +1 more source

A 25.8GHz Integer-N PLL With Time-Amplifying Phase-Frequency Detector Achieving 60fsrms Jitter, -252.8dB FoMJ, and Robust Lock Acquisition Performance

IEEE International Solid-State Circuits Conference, 2022
With the rapid development of the modern communication technology, the communication standards impose stringent performance requirements, such as the ultra-low jitter requirement, on the phase-locked-loop (PLL) frequency synthesizers.
Xinlin Geng, Yibo Tian, Yao Xiao, Zonglin Ye, Qian Xie, Zheng Wang   +5 more
semanticscholar   +1 more source

Impact of PLL Frequency Limiter on Synchronization Stability of Grid Feeding Converter

IEEE Transactions on Power Systems, 2022
It is well known that grid-feeding converters that synchronize to the grid through a Phase-Locked Loop (PLL) can become unstable after a fault. An often-neglected element that plays an important role in the converter synchronization stability is the PLL ...
Junru Chen, Muyang Liu, H. Geng, T. O’Donnell, F. Milano   +4 more
semanticscholar   +1 more source

A Type-3 Modified SOGI-PLL With Grid Disturbance Rejection Capability for Single-Phase Grid-Tied Converters

IEEE transactions on industry applications, 2021
This article presents a type-3 second-order generalized integrator phase-locked loop (SOGI-PLL) algorithm for single-phase system. Disturbances, such as dc offset and harmonics, are present in the practical grid voltages, due to occurrence of faults ...
S. Prakash, J. Singh, R. Behera, Arijit Mondal   +3 more
semanticscholar   +1 more source

Grid-Synchronization Stability Analysis and Loop Shaping for PLL-Based Power Converters With Different Reactive Power Control

IEEE Transactions on Smart Grid, 2020
Power converters may lose synchronization with the remaining network when integrated in a weak power grid. Such an instability phenomenon [known as grid-synchronization instability (GSI)] features the frequency divergence of phase-locked loop (PLL) and ...
Linbin Huang, H. Xin, Zhiyi Li, P. Ju, Hui Yuan, Z. Lan, Zhen Wang   +6 more
semanticscholar   +1 more source

Extended State-Based OSG Configurations for SOGI PLL With an Enhanced Disturbance Rejection Capability

IEEE transactions on industry applications, 2022
Changes in the orthogonal signal generator (OSG) configuration of the standard second-order generalized integrator-based phase-locked loop (S-SOGI PLL) have shown to offer an improved low-voltage ride-through capability.
Abdullahi Bamigbade, V. Khadkikar
semanticscholar   +1 more source

A new PLL architecture: the composite PLL

48th Midwest Symposium on Circuits and Systems, 2005., 2005
This paper presents a new PLL architecture that provides a larger frequency band of phase noise filtering in order to relax VCO building constraints. It consists in a classical PLL with a parallel band pass loop. This topology is called composite PLL.
V. Lagareste, F. Badets, D. Belot, Y. Deval, J.B. Begueret, P. Melchior   +5 more
openaire   +1 more source

Improved Design of PLL Controller for LCL-Type Grid-Connected Converter in Weak Grid

IEEE transactions on power electronics, 2020
When LCL-type converter is attached to weak grid, its current control and phase-locked loop (PLL) will interact with each other, via the point of common coupling voltage.
Donghai Zhu, Shiying Zhou, X. Zou, Yong Kang   +3 more
semanticscholar   +1 more source

Large Signal Synchronizing Instability of PLL-Based VSC Connected to Weak AC Grid

IEEE Transactions on Power Systems, 2019
Similar large signal synchronizing instability that is common in traditional power system also exists in voltage source converter (VSC) dominated power system, which is increasingly reported and investigated.
Qi Hu, Lijun Fu, Fan Ma, Feng Ji
semanticscholar   +1 more source