A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids

Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper present...
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Autor*in:	Gaurav Kumar Roy [verfasserIn] Marco Pau [verfasserIn] Ferdinanda Ponci [verfasserIn] Antonello Monti [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters

Übergeordnetes Werk:	In: Energies - MDPI AG, 2008, 14(2021), 7, p 1967
Übergeordnetes Werk:	volume:14 ; year:2021 ; number:7, p 1967

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/en14071967

Katalog-ID:	DOAJ030652251

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allfields	10.3390/en14071967 doi (DE-627)DOAJ030652251 (DE-599)DOAJ0324a05c058c47a4b65c15b6de65075e DE-627 ger DE-627 rakwb eng Gaurav Kumar Roy verfasserin aut A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities. state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T Marco Pau verfasserin aut Ferdinanda Ponci verfasserin aut Antonello Monti verfasserin aut In Energies MDPI AG, 2008 14(2021), 7, p 1967 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:7, p 1967 https://doi.org/10.3390/en14071967 kostenfrei https://doaj.org/article/0324a05c058c47a4b65c15b6de65075e kostenfrei https://www.mdpi.com/1996-1073/14/7/1967 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 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 14 2021 7, p 1967
spelling	10.3390/en14071967 doi (DE-627)DOAJ030652251 (DE-599)DOAJ0324a05c058c47a4b65c15b6de65075e DE-627 ger DE-627 rakwb eng Gaurav Kumar Roy verfasserin aut A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities. state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T Marco Pau verfasserin aut Ferdinanda Ponci verfasserin aut Antonello Monti verfasserin aut In Energies MDPI AG, 2008 14(2021), 7, p 1967 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:7, p 1967 https://doi.org/10.3390/en14071967 kostenfrei https://doaj.org/article/0324a05c058c47a4b65c15b6de65075e kostenfrei https://www.mdpi.com/1996-1073/14/7/1967 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 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 14 2021 7, p 1967
allfields_unstemmed	10.3390/en14071967 doi (DE-627)DOAJ030652251 (DE-599)DOAJ0324a05c058c47a4b65c15b6de65075e DE-627 ger DE-627 rakwb eng Gaurav Kumar Roy verfasserin aut A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities. state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T Marco Pau verfasserin aut Ferdinanda Ponci verfasserin aut Antonello Monti verfasserin aut In Energies MDPI AG, 2008 14(2021), 7, p 1967 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:7, p 1967 https://doi.org/10.3390/en14071967 kostenfrei https://doaj.org/article/0324a05c058c47a4b65c15b6de65075e kostenfrei https://www.mdpi.com/1996-1073/14/7/1967 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 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 14 2021 7, p 1967
allfieldsGer	10.3390/en14071967 doi (DE-627)DOAJ030652251 (DE-599)DOAJ0324a05c058c47a4b65c15b6de65075e DE-627 ger DE-627 rakwb eng Gaurav Kumar Roy verfasserin aut A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities. state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T Marco Pau verfasserin aut Ferdinanda Ponci verfasserin aut Antonello Monti verfasserin aut In Energies MDPI AG, 2008 14(2021), 7, p 1967 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:7, p 1967 https://doi.org/10.3390/en14071967 kostenfrei https://doaj.org/article/0324a05c058c47a4b65c15b6de65075e kostenfrei https://www.mdpi.com/1996-1073/14/7/1967 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 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 14 2021 7, p 1967
allfieldsSound	10.3390/en14071967 doi (DE-627)DOAJ030652251 (DE-599)DOAJ0324a05c058c47a4b65c15b6de65075e DE-627 ger DE-627 rakwb eng Gaurav Kumar Roy verfasserin aut A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities. state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T Marco Pau verfasserin aut Ferdinanda Ponci verfasserin aut Antonello Monti verfasserin aut In Energies MDPI AG, 2008 14(2021), 7, p 1967 (DE-627)572083742 (DE-600)2437446-5 19961073 nnns volume:14 year:2021 number:7, p 1967 https://doi.org/10.3390/en14071967 kostenfrei https://doaj.org/article/0324a05c058c47a4b65c15b6de65075e kostenfrei https://www.mdpi.com/1996-1073/14/7/1967 kostenfrei https://doaj.org/toc/1996-1073 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 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 14 2021 7, p 1967
language	English
source	In Energies 14(2021), 7, p 1967 volume:14 year:2021 number:7, p 1967
sourceStr	In Energies 14(2021), 7, p 1967 volume:14 year:2021 number:7, p 1967
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters Technology T
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authorswithroles_txt_mv	Gaurav Kumar Roy @@aut@@ Marco Pau @@aut@@ Ferdinanda Ponci @@aut@@ Antonello Monti @@aut@@
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author	Gaurav Kumar Roy
spellingShingle	Gaurav Kumar Roy misc state estimation misc grid monitoring misc AC-DC grids misc Multi-Terminal DC grids misc voltage source converters misc Technology misc T A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids
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topic_title	A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids state estimation grid monitoring AC-DC grids Multi-Terminal DC grids voltage source converters
topic	misc state estimation misc grid monitoring misc AC-DC grids misc Multi-Terminal DC grids misc voltage source converters misc Technology misc T
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title_auth	A Two-Step State Estimation Algorithm for Hybrid AC-DC Distribution Grids
abstract	Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities.
abstractGer	Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities.
abstract_unstemmed	Direct Current (DC) grids are considered an attractive option for integrating high shares of renewable energy sources in the electrical distribution grid. Hence, in the future, Alternating Current (AC) and DC systems could be interconnected to form hybrid AC-DC distribution grids. This paper presents a two-step state estimation formulation for the monitoring of hybrid AC-DC grids. In the first step, state estimation is executed independently for the AC and DC areas of the distribution system. The second step refines the estimation results by exchanging boundary quantities at the AC-DC converters. To this purpose, the modulation index and phase angle control of the AC-DC converters are integrated into the second step of the proposed state estimation formulation. This allows providing additional inputs to the state estimation algorithm, which eventually leads to improve the accuracy of the state estimation results. Simulations on a sample AC-DC distribution grid are performed to highlight the benefits resulting from the integration of these converter control parameters for the estimation of both the AC and DC grid quantities.
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1967</subfield></datafield></record></collection>
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