Results 11 to 20 of about 2,094 (182)

A high performance grid synchronization method for renewable energy grid-connected applications

open access: yesEnergy Reports, 2021
Aiming at the problem of insufficient harmonic suppression capability for distributed renewable energy grid-connected application equipments, an efficient grid synchronous phase-locked loop(PLL) which will suppress harmonics is proposed. Firstly, a novel
Nanmu Hui, Haixiang Xu, Yingying Feng
doaj   +1 more source

A fractional‐N MASH2‐k FDC phase‐locked loop architecture enabling higher‐order quantisation noise shaping

open access: yesElectronics Letters, 2022
The quantisation noise contribution of a conventional FDC phase‐locked loop (PLL) is still high due to the only second‐order noise‐shaping capability.
Ryoga Iwashita   +3 more
doaj   +1 more source

Adaptive Impedance-Conditioned Phase-Locked Loop for the VSC Converter Connected to Weak Grid

open access: yesEnergies, 2021
In this paper, an adaptive version of the impedance-conditioned phase-locked loop (IC-PLL), namely the adaptive IC-PLL (AIC-PLL), is proposed. The IC-PLL has recently been proposed to address the issue of synchronisation with a weak AC grid by ...
Mostafa A. Hamood   +2 more
doaj   +1 more source

Reference Injected Phase-Locked Loops (PLL-RIs)

open access: yesIEEE Transactions on Circuits and Systems I: Regular Papers, 2017
In this paper, we use synchronization to reduce phase-locked loop (PLL) phase noise and improve its locking behavior with an attenuated reference signal injection (RI) into a voltage-controlled CMOS delay-line ring-type oscillator. The transient and steady-state behavior of the PLL-RI are described by a nonlinear differential equation, which is further
Feiran Lei, Marvin H. White
openaire   +1 more source

Small-signal Stability Analysis and Improvement with Phase-shift Phase-locked Loop Based on Back Electromotive Force Observer for VSC-HVDC in Weak Grids

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
Voltage source converter based high-voltage direct current (VSC-HVDC) transmission technology has been extensively employed in power systems with a high penetration of renewable energy resources. However, connecting a voltage source converter (VSC) to an
Yongqing Meng   +5 more
doaj   +1 more source

Understanding of the Coherent Demodulation with Phase-Locked Loop

open access: yesMATEC Web of Conferences, 2018
The phase-locked loop (PLL) technology is a very important technology in the communication field. With the development of electronic technology toward digitalization, the phase-locked processing of signal needs to be realized in digital way.
Zhai Bingcong
doaj   +1 more source

An all-digital phase-locked loop based on variable phase accumulator

open access: yesDianzi Jishu Yingyong, 2019
This paper presents a novel all-digital phase-locked loop with variable phase accumulator circuit structure. The design of the system is completed by using EDA technology, and the system simulation experiment is carried out by using ModelSim software ...
Yang Mengwei, Tian Fan, Shan Changhong
doaj   +1 more source

Phase-Locked Loop with Inverse Tangent based Phase Detection

open access: yesAdvances in Electrical and Computer Engineering, 2021
In this paper, a novel closed-loop synchronization algorithm is proposed based on the linear phase angle detection. The linear phase detection is performed by the inverse tangent (atan2) trigonometric function, while the frequency tracking is performed
STOJIC, D.
doaj   +1 more source

A Single-Event-Hardened Scheme of Phase-Locked Loop Microsystems for Aerospace Applications

open access: yesMicromachines, 2022
In order to improve the ability of the phase-locked loop (PLL) microsystem applied in the aerospace environment to suppress the irradiation effect, this study presents an efficient charge pump hardened scheme by using the radiation-hardened-by-design ...
Qi Xiang, Hongxia Liu, Yulun Zhou
doaj   +1 more source

Control Loop Stability Criterion and Interaction Law Analysis for Grid-Connected Inverter in Weak Grid

open access: yesIEEE Access, 2023
The study of stability criterion and interaction analysis for grid-connected inverter under weak grid is of great value. The previous stability criterion combined current loop, phase-locked loop and other loops together, and used the same external ...
Fang Liu   +4 more
doaj   +1 more source

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