A New Synchronization Algorithm for Grid-Connected Inverters

Guo, Xianping; Guo, Jifeng

doi:10.12785/amis/080249

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…A new all-digital closed-loop phaselocked algorithm for the synchronization signals of threephase grid-connected inverters is presented even considering seriously distorted and variable-frequency utility conditions. The proposed synchronization algorithm can suppress the negative sequence utility voltage at fundamental frequency and high-frequency harmonic components effectively, and lock the positive sequence phase at fundamental frequency accurately [18].…”

Section: Iiliterature Reviewmentioning

confidence: 99%

Synchronization of Three Phase Inverter with Electrical Grid

Devi¹,

Kadam²

2015

IJERT

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Phase, frequency, and amplitude of phase voltages are the most important and basic parameters need to be controlled or grid-connected applications. The aim of this paper is to present a review of various synchronization techniques for pulse width modulated voltage source inverter. This paper describes the estimation method and verifies its usefulness by extensive numerical experiments. Various synchronization algorithms are described here. The primary application of the proposed synchronization methods is for the distributed generation units with renewable energy sources, which utilize power electronic converters as an integral part of their systems. The synchronization is usually carried out with respect to the voltage, frequency and phase angle of voltage (or current) signal(s) of the utility system. The paper also describes the issues, challenges & solutions for.

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Section: Iiliterature Reviewmentioning

confidence: 99%

Synchronization of Three Phase Inverter with Electrical Grid

Devi¹,

Kadam²

2015

IJERT

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“…When it comes to use the synchronous coordinate conversion, dc offset could be removed by adding LPFs on synchronous d-axis voltage [12,13]. However, estimated grid frequency and synchronous dq-axis voltages have the same ripples with the grid frequency.…”

Section: Introductionmentioning

confidence: 99%

Improved DC Offset Error Compensation Algorithm in Phase Locked Loop System

Park¹,

Jung²

2016

Journal of Electrical Engineering and Technology

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-This paper proposes a dc error compensation algorithm using dq-synchronous coordinate transform digital phase-locked-loop in single-phase grid-connected converters. The dc errors are caused by analog to digital conversion and grid voltage during measurement. If the dc offset error is included in the phase-locked-loop system, it can cause distortion in the grid angle estimation with phase-locked-loop. Accordingly, recent study has dealt with the integral technique using the synchronous reference frame phase-locked-loop method. However, dynamic response is slow because it requires to monitor one period of grid voltage. In this paper, the dc offset error compensation algorithm of the improved response characteristic is proposed by using the synchronous reference frame phase-locked-loop. The simulation and the experimental results are presented to demonstrate the effectiveness of the proposed dc offset error compensation algorithm.

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A New Synchronization Algorithm for Grid-Connected Inverters

Cited by 2 publications

References 24 publications

Synchronization of Three Phase Inverter with Electrical Grid

Synchronization of Three Phase Inverter with Electrical Grid

Improved DC Offset Error Compensation Algorithm in Phase Locked Loop System

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