Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions

The growing relevance of voltage source converters (VSCs), and the deep impact they have on the development and maintenance of the electrical grid, increase the necessity of further research on how to deal with nonideal grid conditions from the VSCs control. This paper is aimed to summarize the basi...

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Auteurs principaux:	Pablo Montero-Robina, Kumars Rouzbehi, Francisco Gordillo, Josep Pou
Format:	article
Langue:	EN
Publié:	IEEE 2021
Sujets:	Current controller current reference generation negative sequence unbalanced grid voltage source converter (VSC) Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8
Accès en ligne:	https://doaj.org/article/fcebd6f449f54bcba76bfdadb38311f9
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id	oai:doaj.org-article:fcebd6f449f54bcba76bfdadb38311f9
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spelling	oai:doaj.org-article:fcebd6f449f54bcba76bfdadb38311f92021-11-03T23:00:16ZGrid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions2644-128410.1109/OJIES.2021.3121764https://doaj.org/article/fcebd6f449f54bcba76bfdadb38311f92021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9583770/https://doaj.org/toc/2644-1284The growing relevance of voltage source converters (VSCs), and the deep impact they have on the development and maintenance of the electrical grid, increase the necessity of further research on how to deal with nonideal grid conditions from the VSCs control. This paper is aimed to summarize the basic techniques and schemes that might be required for a grid-connected VSC to work under these conditions: grid synchronization schemes, sequence decomposition, current reference generation, and current controllers. At the same time, some alternative schemes that improves the basic ones are cited. Modelling and the two typical current controllers design and tuning under stationary and synchronous reference frames are also exhibited. Given the importance of the current control stage in the VSC behaviour, five control schemes, designed to track negative sequence currents, are shown and tested in simulation and experiments. According to the experiments, it is shown that the standard proportional-resonant controller achieves the best performance in negative sequence tracking due to the robustness of its non-ideal version, the improved implementation thanks to the delta operator, and the non-dependence on grid-synchronization schemes. Alternatively, one approach based on dual synchronous reference frame is also highlighted for easiness of implementation and good performance.Pablo Montero-RobinaKumars RouzbehiFrancisco GordilloJosep PouIEEEarticleCurrent controllercurrent reference generationnegative sequenceunbalanced gridvoltage source converter (VSC)ElectronicsTK7800-8360Industrial engineering. Management engineeringT55.4-60.8ENIEEE Open Journal of the Industrial Electronics Society, Vol 2, Pp 528-544 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Current controller current reference generation negative sequence unbalanced grid voltage source converter (VSC) Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8
spellingShingle	Current controller current reference generation negative sequence unbalanced grid voltage source converter (VSC) Electronics TK7800-8360 Industrial engineering. Management engineering T55.4-60.8 Pablo Montero-Robina Kumars Rouzbehi Francisco Gordillo Josep Pou Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
description	The growing relevance of voltage source converters (VSCs), and the deep impact they have on the development and maintenance of the electrical grid, increase the necessity of further research on how to deal with nonideal grid conditions from the VSCs control. This paper is aimed to summarize the basic techniques and schemes that might be required for a grid-connected VSC to work under these conditions: grid synchronization schemes, sequence decomposition, current reference generation, and current controllers. At the same time, some alternative schemes that improves the basic ones are cited. Modelling and the two typical current controllers design and tuning under stationary and synchronous reference frames are also exhibited. Given the importance of the current control stage in the VSC behaviour, five control schemes, designed to track negative sequence currents, are shown and tested in simulation and experiments. According to the experiments, it is shown that the standard proportional-resonant controller achieves the best performance in negative sequence tracking due to the robustness of its non-ideal version, the improved implementation thanks to the delta operator, and the non-dependence on grid-synchronization schemes. Alternatively, one approach based on dual synchronous reference frame is also highlighted for easiness of implementation and good performance.
format	article
author	Pablo Montero-Robina Kumars Rouzbehi Francisco Gordillo Josep Pou
author_facet	Pablo Montero-Robina Kumars Rouzbehi Francisco Gordillo Josep Pou
author_sort	Pablo Montero-Robina
title	Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
title_short	Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
title_full	Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
title_fullStr	Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
title_full_unstemmed	Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions
title_sort	grid-following voltage source converters: basic schemes and current control techniques to operate with unbalanced voltage conditions
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/fcebd6f449f54bcba76bfdadb38311f9
work_keys_str_mv	AT pablomonterorobina gridfollowingvoltagesourceconvertersbasicschemesandcurrentcontroltechniquestooperatewithunbalancedvoltageconditions AT kumarsrouzbehi gridfollowingvoltagesourceconvertersbasicschemesandcurrentcontroltechniquestooperatewithunbalancedvoltageconditions AT franciscogordillo gridfollowingvoltagesourceconvertersbasicschemesandcurrentcontroltechniquestooperatewithunbalancedvoltageconditions AT joseppou gridfollowingvoltagesourceconvertersbasicschemesandcurrentcontroltechniquestooperatewithunbalancedvoltageconditions
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Grid-Following Voltage Source Converters: Basic Schemes and Current Control Techniques to Operate With Unbalanced Voltage Conditions

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