Multiresonant Frequency-Locked Loop for Grid Synchronization of Power Converters Under Distorted Grid Conditions

Pedro  Rodriguez; Alvaro Luna; Ignacio Candela; Ramon Mujal; Remus Teodorescu; Frede Blaabjerg

doi:10.1109/TIE.2010.2042420

Multiresonant Frequency-Locked Loop for Grid Synchronization of Power Converters Under Distorted Grid Conditions

Pedro Rodriguez, Alvaro Luna, Ignacio Candela, Ramon Mujal, Remus Teodorescu, Frede Blaabjerg

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Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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Abstract

This paper presents a new multiresonant frequency-adaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and negative-sequence components of the power signal at the fundamental frequency but also other sequence components at other harmonic frequencies. The proposed system is called MSOGI-FLL since it is based on both a harmonic decoupling network consisting of multiple second-order generalized integrators (MSOGIs) and a frequency-locked loop (FLL), which makes the system frequency adaptive. In this paper, the MSOGI-FLL is analyzed for single- and three-phase applications, deducing some key expressions regarding its stability and tuning. Moreover, the performance of the MSOGI-FLL is evaluated by both simulations and experiments to show its capability for detecting different harmonic components in a highly polluted grid scenario.

Originalsprog	Engelsk
Tidsskrift	I E E E Transactions on Industrial Electronics
Vol/bind	58
Udgave nummer	1
Sider (fra-til)	127-138
Antal sider	12
ISSN	0278-0046
DOI	https://doi.org/10.1109/TIE.2010.2042420
Status	Udgivet - jan. 2011

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10.1109/TIE.2010.2042420

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5446347

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Citationsformater

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abstract = "This paper presents a new multiresonant frequency-adaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and negative-sequence components of the power signal at the fundamental frequency but also other sequence components at other harmonic frequencies. The proposed system is called MSOGI-FLL since it is based on both a harmonic decoupling network consisting of multiple second-order generalized integrators (MSOGIs) and a frequency-locked loop (FLL), which makes the system frequency adaptive. In this paper, the MSOGI-FLL is analyzed for single- and three-phase applications, deducing some key expressions regarding its stability and tuning. Moreover, the performance of the MSOGI-FLL is evaluated by both simulations and experiments to show its capability for detecting different harmonic components in a highly polluted grid scenario.",

keywords = "Frequency estimation , Frequency-locked loops (FLLs) , Harmonic analysis , Monitoring, Synchronization ",

author = "Pedro Rodriguez and Alvaro Luna and Ignacio Candela and Ramon Mujal and Remus Teodorescu and Frede Blaabjerg",

year = "2011",

month = jan,

doi = "10.1109/TIE.2010.2042420",

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AU - Rodriguez, Pedro

AU - Luna, Alvaro

AU - Candela, Ignacio

AU - Mujal, Ramon

AU - Teodorescu, Remus

AU - Blaabjerg, Frede

PY - 2011/1

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N2 - This paper presents a new multiresonant frequency-adaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and negative-sequence components of the power signal at the fundamental frequency but also other sequence components at other harmonic frequencies. The proposed system is called MSOGI-FLL since it is based on both a harmonic decoupling network consisting of multiple second-order generalized integrators (MSOGIs) and a frequency-locked loop (FLL), which makes the system frequency adaptive. In this paper, the MSOGI-FLL is analyzed for single- and three-phase applications, deducing some key expressions regarding its stability and tuning. Moreover, the performance of the MSOGI-FLL is evaluated by both simulations and experiments to show its capability for detecting different harmonic components in a highly polluted grid scenario.

AB - This paper presents a new multiresonant frequency-adaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and negative-sequence components of the power signal at the fundamental frequency but also other sequence components at other harmonic frequencies. The proposed system is called MSOGI-FLL since it is based on both a harmonic decoupling network consisting of multiple second-order generalized integrators (MSOGIs) and a frequency-locked loop (FLL), which makes the system frequency adaptive. In this paper, the MSOGI-FLL is analyzed for single- and three-phase applications, deducing some key expressions regarding its stability and tuning. Moreover, the performance of the MSOGI-FLL is evaluated by both simulations and experiments to show its capability for detecting different harmonic components in a highly polluted grid scenario.

KW - Frequency estimation

KW - Frequency-locked loops (FLLs)

KW - Harmonic analysis

KW - Monitoring

KW - Synchronization

U2 - 10.1109/TIE.2010.2042420

DO - 10.1109/TIE.2010.2042420

M3 - Journal article

SN - 0278-0046

VL - 58

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EP - 138

JO - I E E E Transactions on Industrial Electronics

JF - I E E E Transactions on Industrial Electronics

IS - 1

ER -

Multiresonant Frequency-Locked Loop for Grid Synchronization of Power Converters Under Distorted Grid Conditions

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