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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/31409

Title: Quadrature signal generator based on all-pass filter for single-phase synchronization
Author(s): Blanco Charro, Cristian
Díaz Reigosa, David
Briz del Blanco, Fernando
Guerrero, Josep M.
Issue date: 2014
Publisher: IEEE
Publisher version: http://dx.doi.org/10.1109/ECCE.2014.6953757
Format extent: p. 2655-2662
Abstract: Precise calculation of the grid voltage magnitude and phase is required for the operation of distributed power generation (DPG) systems. While the general concepts involved in the synchronization of single-phase and three-phase systems are the same, the practical implementation can differ substantially, the single-phase case being more challenging. Phase-locked-loop (PLL) based methods have been widely used for the synchronization of single-phase systems. These methods can be roughly grouped into methods that use a quadrature signal generator (QSG) and methods that implement a single-phase PLL. One drawback of single-phase PLL methods is that they usually produce a component at twice the fundamental frequency that needs to be removed. On the contrary, QSG methods do not induce such component, enabling therefore the use of three-phase PLLs. On the other hand, the phase error usually depends on the input magnitude for both methods. This paper proposes a QSG based single-phase synchronization technique that overcomes the aforementioned limitations of both single-phase PLLs and QSGs. It will be shown that the proposed method accurately estimates the magnitude and phase of the microgrid/grid fundamental voltage with high dynamic response, even under high distorted conditions
URI: http://hdl.handle.net/10651/31409
ISBN: 978-1-4799-5776-7
Sponsored: This work was supported in part by the Research, Technological Development and Innovation Programs of the Ministry of Science and Innovation under grant MICINN-10-CSD2009-00046 and by the Personnel Research Training Program funded by the Regional Ministry of Education and Science of the Principality of Asturias under grant BP11-107
Project id.: MEC/MICINN-10-CSD2009-00046
FICYT/BP11-107
Appears in Collections:Capítulos de libros
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas

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