Control Design of Grid Synchronization Systems for Grid-Tied Power Converters Using Symmetrical Optimum Method: A Comprehensive Reference

Saeed Golestan; Josep M. Guerrero; Juan C. Vasquez; Abdullah M. Abusorrah; Vinod Khadkikar; Jose Rodriguez

doi:10.1109/TPEL.2023.3292306

Control Design of Grid Synchronization Systems for Grid-Tied Power Converters Using Symmetrical Optimum Method: A Comprehensive Reference

Saeed Golestan, Josep M. Guerrero, Juan C. Vasquez, Abdullah M. Abusorrah, Vinod Khadkikar, Jose Rodriguez

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Control design of advanced grid synchronization systems is complex as they are often adaptive nonlinear feedback systems with one or more filtering networks and feedback loops in their structure. This article intends to contribute to addressing this issue. It is shown that the phase or frequency estimation loop of many advanced grid synchronization systems, including $3\phi$ and $1\phi$ phase-locked loops and frequency-locked loops equipped with in-loop filters and prefilters, can be well-Approximated by a standard type-2 control system in the low-frequency range and an extension of the symmetrical optimum (SO) approach could be used to efficiently tune their control parameters. To better understand all this, an overview of the SO method and its extended version is provided and several case studies are presented. The limitations of this design approach and possible solutions are also discussed.

Original language	British English
Pages (from-to)	13650-13673
Number of pages	24
Journal	IEEE Transactions on Power Electronics
Volume	38
Issue number	11
DOIs	https://doi.org/10.1109/TPEL.2023.3292306
State	Published - 1 Nov 2023

Keywords

Control tuning
frequency-locked loops (FLLs)
linear modeling
linear time invariant (LTI) model
linear time-periodic (LTP) model
phase-locked loops (PLLs)
symmetrical optimum method
synchronization systems

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10.1109/TPEL.2023.3292306

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title = "Control Design of Grid Synchronization Systems for Grid-Tied Power Converters Using Symmetrical Optimum Method: A Comprehensive Reference",

abstract = "Control design of advanced grid synchronization systems is complex as they are often adaptive nonlinear feedback systems with one or more filtering networks and feedback loops in their structure. This article intends to contribute to addressing this issue. It is shown that the phase or frequency estimation loop of many advanced grid synchronization systems, including $3\phi$ and $1\phi$ phase-locked loops and frequency-locked loops equipped with in-loop filters and prefilters, can be well-Approximated by a standard type-2 control system in the low-frequency range and an extension of the symmetrical optimum (SO) approach could be used to efficiently tune their control parameters. To better understand all this, an overview of the SO method and its extended version is provided and several case studies are presented. The limitations of this design approach and possible solutions are also discussed.",

keywords = "Control tuning, frequency-locked loops (FLLs), linear modeling, linear time invariant (LTI) model, linear time-periodic (LTP) model, phase-locked loops (PLLs), symmetrical optimum method, synchronization systems",

author = "Saeed Golestan and Guerrero, {Josep M.} and Vasquez, {Juan C.} and Abusorrah, {Abdullah M.} and Vinod Khadkikar and Jose Rodriguez",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

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doi = "10.1109/TPEL.2023.3292306",

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AU - Golestan, Saeed

AU - Guerrero, Josep M.

AU - Vasquez, Juan C.

AU - Abusorrah, Abdullah M.

AU - Khadkikar, Vinod

AU - Rodriguez, Jose

PY - 2023/11/1

Y1 - 2023/11/1

N2 - Control design of advanced grid synchronization systems is complex as they are often adaptive nonlinear feedback systems with one or more filtering networks and feedback loops in their structure. This article intends to contribute to addressing this issue. It is shown that the phase or frequency estimation loop of many advanced grid synchronization systems, including $3\phi$ and $1\phi$ phase-locked loops and frequency-locked loops equipped with in-loop filters and prefilters, can be well-Approximated by a standard type-2 control system in the low-frequency range and an extension of the symmetrical optimum (SO) approach could be used to efficiently tune their control parameters. To better understand all this, an overview of the SO method and its extended version is provided and several case studies are presented. The limitations of this design approach and possible solutions are also discussed.

AB - Control design of advanced grid synchronization systems is complex as they are often adaptive nonlinear feedback systems with one or more filtering networks and feedback loops in their structure. This article intends to contribute to addressing this issue. It is shown that the phase or frequency estimation loop of many advanced grid synchronization systems, including $3\phi$ and $1\phi$ phase-locked loops and frequency-locked loops equipped with in-loop filters and prefilters, can be well-Approximated by a standard type-2 control system in the low-frequency range and an extension of the symmetrical optimum (SO) approach could be used to efficiently tune their control parameters. To better understand all this, an overview of the SO method and its extended version is provided and several case studies are presented. The limitations of this design approach and possible solutions are also discussed.

KW - Control tuning

KW - frequency-locked loops (FLLs)

KW - linear modeling

KW - linear time invariant (LTI) model

KW - linear time-periodic (LTP) model

KW - phase-locked loops (PLLs)

KW - symmetrical optimum method

KW - synchronization systems

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ER -

Control Design of Grid Synchronization Systems for Grid-Tied Power Converters Using Symmetrical Optimum Method: A Comprehensive Reference

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Keywords

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