A Generic Power Flow Algorithm for Unbalanced Islanded Hybrid AC/DC Microgrids
This paper proposes a precise power flow algorithm for islanded hybrid AC/DC microgrids (HMGs). In our analysis, we have considered a multi-grounded unbalanced bipolar DC microgrid and a multi-grounded four-wire AC microgrid connected through one or more interlinking converters (ICs). The proposed m...
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| Veröffentlicht in: | IEEE transactions on power systems 2021-03, Vol.36 (2), p.1107-1120 |
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| container_title | IEEE transactions on power systems |
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| creator | Pompodakis, Evangelos E. Kryonidis, Georgios C. Demoulias, Charis Alexiadis, Minas C. |
| description | This paper proposes a precise power flow algorithm for islanded hybrid AC/DC microgrids (HMGs). In our analysis, we have considered a multi-grounded unbalanced bipolar DC microgrid and a multi-grounded four-wire AC microgrid connected through one or more interlinking converters (ICs). The proposed method is based on the implicit Z BUS method, presenting fast convergence and robustness regardless of the R / X ratio of the lines. It can be applied in all network configurations including highly meshed distribution systems. Numerical simulations are conducted in a 12-Bus and a 47-Bus islanded unbalanced HMG to verify the validity of the proposed power flow approach considering several distributed generator (DG) operational modes. A case study in a large 1024-Bus islanded HMG further highlights the outstanding accuracy and computational performance of the proposed approach against other existing power flow methods. |
| doi_str_mv | 10.1109/TPWRS.2020.3012815 |
| format | Article |
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In our analysis, we have considered a multi-grounded unbalanced bipolar DC microgrid and a multi-grounded four-wire AC microgrid connected through one or more interlinking converters (ICs). The proposed method is based on the implicit Z BUS method, presenting fast convergence and robustness regardless of the R / X ratio of the lines. It can be applied in all network configurations including highly meshed distribution systems. Numerical simulations are conducted in a 12-Bus and a 47-Bus islanded unbalanced HMG to verify the validity of the proposed power flow approach considering several distributed generator (DG) operational modes. 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A case study in a large 1024-Bus islanded HMG further highlights the outstanding accuracy and computational performance of the proposed approach against other existing power flow methods.</description><subject>AC/DC hybrid microgrids</subject><subject>Admittance</subject><subject>Algorithms</subject><subject>bipolar DC microgrids</subject><subject>Conductors</subject><subject>Distributed generation</subject><subject>Electric converters</subject><subject>Grounding</subject><subject>Integrated circuits</subject><subject>interlinking converter</subject><subject>Load flow</subject><subject>Microgrids</subject><subject>multi-grounded networks</subject><subject>Power flow</subject><subject>Robustness</subject><subject>Robustness (mathematics)</subject><issn>0885-8950</issn><issn>1558-0679</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kMtOwzAQRS0EEqXwA7CxxDqt7WQSexkF-pB4VNCKpZXEk5IqTYrdqurf49KK1cxo7p25OoTcczbgnKnhfPb18TkQTLBByLiQHC5IjwPIgMWJuiQ9JiUEUgG7JjfOrRhjsV_0yFtKx9iirUs66_Zo6ajp9jRtlp2tt99rWnWWLtoib_K2REOnzjfGN5NDYWtD02z4lNHXurTd0s_ullxVeePw7lz7ZDF6nmeT4OV9PM3Sl6AUCraBLCCWPOFKKQFJLlAgjziWwCJlsEpkbiJIMOY8LMrESECAsCpMaJQohVBhnzye7m5s97NDt9Wrbmdb_1KLSAkZMwaxV4mTysdzzmKlN7Ze5_agOdNHbvqPmz5y02du3vRwMtWI-G9QHISPGP4CVWZngw</recordid><startdate>202103</startdate><enddate>202103</enddate><creator>Pompodakis, Evangelos E.</creator><creator>Kryonidis, Georgios C.</creator><creator>Demoulias, Charis</creator><creator>Alexiadis, Minas C.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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In our analysis, we have considered a multi-grounded unbalanced bipolar DC microgrid and a multi-grounded four-wire AC microgrid connected through one or more interlinking converters (ICs). The proposed method is based on the implicit Z BUS method, presenting fast convergence and robustness regardless of the R / X ratio of the lines. It can be applied in all network configurations including highly meshed distribution systems. Numerical simulations are conducted in a 12-Bus and a 47-Bus islanded unbalanced HMG to verify the validity of the proposed power flow approach considering several distributed generator (DG) operational modes. A case study in a large 1024-Bus islanded HMG further highlights the outstanding accuracy and computational performance of the proposed approach against other existing power flow methods.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPWRS.2020.3012815</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0001-8176-769X</orcidid><orcidid>https://orcid.org/0000-0002-7593-1761</orcidid><orcidid>https://orcid.org/0000-0001-6702-2149</orcidid></addata></record> |
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| language | eng |
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| subjects | AC/DC hybrid microgrids Admittance Algorithms bipolar DC microgrids Conductors Distributed generation Electric converters Grounding Integrated circuits interlinking converter Load flow Microgrids multi-grounded networks Power flow Robustness Robustness (mathematics) |
| title | A Generic Power Flow Algorithm for Unbalanced Islanded Hybrid AC/DC Microgrids |
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