Improved VSG strategy of grid-forming inverters for supporting inertia and damping

A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However,...
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Autor*in:	Dan Liu [verfasserIn] Kezheng Jiang [verfasserIn] Xiaotong Ji [verfasserIn] Kan Cao [verfasserIn] Chi Xu [verfasserIn] Shun Sang [verfasserIn] Dejian Yang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient

Übergeordnetes Werk:	In: Frontiers in Energy Research - Frontiers Media S.A., 2014, 11(2024)
Übergeordnetes Werk:	volume:11 ; year:2024

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fenrg.2023.1331024

Katalog-ID:	DOAJ097748021

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520			\|a A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances.
650		4	\|a grid-forming inverter
650		4	\|a VSG
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650		4	\|a adaptive control coefficient
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allfields	10.3389/fenrg.2023.1331024 doi (DE-627)DOAJ097748021 (DE-599)DOAJc7a50ed6a7074997a4e2f4e685edb728 DE-627 ger DE-627 rakwb eng Dan Liu verfasserin aut Improved VSG strategy of grid-forming inverters for supporting inertia and damping 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances. grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient General Works A Kezheng Jiang verfasserin aut Xiaotong Ji verfasserin aut Kan Cao verfasserin aut Chi Xu verfasserin aut Shun Sang verfasserin aut Dejian Yang verfasserin aut In Frontiers in Energy Research Frontiers Media S.A., 2014 11(2024) (DE-627)768576768 (DE-600)2733788-1 2296598X nnns volume:11 year:2024 https://doi.org/10.3389/fenrg.2023.1331024 kostenfrei https://doaj.org/article/c7a50ed6a7074997a4e2f4e685edb728 kostenfrei https://www.frontiersin.org/articles/10.3389/fenrg.2023.1331024/full kostenfrei https://doaj.org/toc/2296-598X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2024
spelling	10.3389/fenrg.2023.1331024 doi (DE-627)DOAJ097748021 (DE-599)DOAJc7a50ed6a7074997a4e2f4e685edb728 DE-627 ger DE-627 rakwb eng Dan Liu verfasserin aut Improved VSG strategy of grid-forming inverters for supporting inertia and damping 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances. grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient General Works A Kezheng Jiang verfasserin aut Xiaotong Ji verfasserin aut Kan Cao verfasserin aut Chi Xu verfasserin aut Shun Sang verfasserin aut Dejian Yang verfasserin aut In Frontiers in Energy Research Frontiers Media S.A., 2014 11(2024) (DE-627)768576768 (DE-600)2733788-1 2296598X nnns volume:11 year:2024 https://doi.org/10.3389/fenrg.2023.1331024 kostenfrei https://doaj.org/article/c7a50ed6a7074997a4e2f4e685edb728 kostenfrei https://www.frontiersin.org/articles/10.3389/fenrg.2023.1331024/full kostenfrei https://doaj.org/toc/2296-598X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2024
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allfieldsSound	10.3389/fenrg.2023.1331024 doi (DE-627)DOAJ097748021 (DE-599)DOAJc7a50ed6a7074997a4e2f4e685edb728 DE-627 ger DE-627 rakwb eng Dan Liu verfasserin aut Improved VSG strategy of grid-forming inverters for supporting inertia and damping 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances. grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient General Works A Kezheng Jiang verfasserin aut Xiaotong Ji verfasserin aut Kan Cao verfasserin aut Chi Xu verfasserin aut Shun Sang verfasserin aut Dejian Yang verfasserin aut In Frontiers in Energy Research Frontiers Media S.A., 2014 11(2024) (DE-627)768576768 (DE-600)2733788-1 2296598X nnns volume:11 year:2024 https://doi.org/10.3389/fenrg.2023.1331024 kostenfrei https://doaj.org/article/c7a50ed6a7074997a4e2f4e685edb728 kostenfrei https://www.frontiersin.org/articles/10.3389/fenrg.2023.1331024/full kostenfrei https://doaj.org/toc/2296-598X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2024
language	English
source	In Frontiers in Energy Research 11(2024) volume:11 year:2024
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topic_facet	grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient General Works A
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container_title	Frontiers in Energy Research
authorswithroles_txt_mv	Dan Liu @@aut@@ Kezheng Jiang @@aut@@ Xiaotong Ji @@aut@@ Kan Cao @@aut@@ Chi Xu @@aut@@ Shun Sang @@aut@@ Dejian Yang @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
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author	Dan Liu
spellingShingle	Dan Liu misc grid-forming inverter misc VSG misc inertia and damping misc frequency deviation misc adaptive control coefficient misc General Works misc A Improved VSG strategy of grid-forming inverters for supporting inertia and damping
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topic_title	Improved VSG strategy of grid-forming inverters for supporting inertia and damping grid-forming inverter VSG inertia and damping frequency deviation adaptive control coefficient
topic	misc grid-forming inverter misc VSG misc inertia and damping misc frequency deviation misc adaptive control coefficient misc General Works misc A
topic_unstemmed	misc grid-forming inverter misc VSG misc inertia and damping misc frequency deviation misc adaptive control coefficient misc General Works misc A
topic_browse	misc grid-forming inverter misc VSG misc inertia and damping misc frequency deviation misc adaptive control coefficient misc General Works misc A
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
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title	Improved VSG strategy of grid-forming inverters for supporting inertia and damping
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title_full	Improved VSG strategy of grid-forming inverters for supporting inertia and damping
author_sort	Dan Liu
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author_browse	Dan Liu Kezheng Jiang Xiaotong Ji Kan Cao Chi Xu Shun Sang Dejian Yang
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title_sort	improved vsg strategy of grid-forming inverters for supporting inertia and damping
title_auth	Improved VSG strategy of grid-forming inverters for supporting inertia and damping
abstract	A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances.
abstractGer	A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances.
abstract_unstemmed	A virtual synchronous generator (VSG) strategy can introduce the rotational inertia and damping characteristics of the synchronous generator to the static inverter, e.g., PV, wind generation, and ESS, which are used to enhance the system frequency support characteristics of the micro-grid. However, under various operations of the VSG, the inertia and damping support capabilities are different, and the conventional VSG strategy with a fixed control coefficient sacrifices a certain degree of dynamic regulation performance with less robustness. This research proposes an improved VSG strategy with adaptive inertia and damping coefficients to increase the flexibility of VSG. To this end, a mathematical model is first established to analyze the impact of various parameters on the characteristics of VSG, and then the root trajectory is used to explore the impacts of various rotational inertia and damping coefficients on the stability of the VSG system. Second, an improved control strategy with adaptive inertia and damping coefficients is proposed based on the characteristics of the second-order system and the system frequency deviations. Finally, a simulation system with the VSG is constructed based on MATLAB/Simulink. The effectiveness of the proposed control strategy is verified by comparing the simulation results to the conventional control strategy with the fixed control coefficients under over-frequency and under-frequency disturbances.
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title_short	Improved VSG strategy of grid-forming inverters for supporting inertia and damping
url	https://doi.org/10.3389/fenrg.2023.1331024 https://doaj.org/article/c7a50ed6a7074997a4e2f4e685edb728 https://www.frontiersin.org/articles/10.3389/fenrg.2023.1331024/full https://doaj.org/toc/2296-598X
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author2	Kezheng Jiang Xiaotong Ji Kan Cao Chi Xu Shun Sang Dejian Yang
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up_date	2024-07-03T13:33:32.764Z
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Improved VSG strategy of grid-forming inverters for supporting inertia and damping

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