Optimal Flow of MVDC Shipboard Microgrids With Hybrid Storage Enhanced With Capacitive and Resistive Droop Controllers
Hybrid storage system composed of battery energy storage systems (BESSs) and supercapacitors is a promising solution to mitigate the high frequency power fluctuations of pulsed power loads (PPLs) in medium voltage DC (MVDC) shipboard power systems. Due to the presence of multiple storage units, a po...
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| Veröffentlicht in: | IEEE transactions on power systems 2021-07, Vol.36 (4), p.3728-3739 |
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| description | Hybrid storage system composed of battery energy storage systems (BESSs) and supercapacitors is a promising solution to mitigate the high frequency power fluctuations of pulsed power loads (PPLs) in medium voltage DC (MVDC) shipboard power systems. Due to the presence of multiple storage units, a power sharing algorithm needs to be considered within the energy management system (EMS) in the shipboard power system. In this paper, an optimal power flow problem is formulated for MVDC shipboard power systems with hybrid energy storage systems. Battery energy storage systems (BESSs) and conventional generation units are enhanced with virtual resistive droop controllers to share the steady-state power fluctuations. Supercapacitors are enhanced with virtual capacitive droop controllers to share the high frequency fluctuations in the load. The optimal flow accounts for minimizing the operational cost of the generation units in the shipboard power system considering the constraints of network, load balance, voltage profile, and power/energy limits. Second-order cone programming (SOCP) relaxation is used to approximate the nonconvexity of the optimal flow formulation and necessary conditions for global optimality of the solution are discussed. Results confirm the effectiveness of the proposed formulation in load support and managing the energy between storage units. |
| doi_str_mv | 10.1109/TPWRS.2021.3049343 |
| format | Article |
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Due to the presence of multiple storage units, a power sharing algorithm needs to be considered within the energy management system (EMS) in the shipboard power system. In this paper, an optimal power flow problem is formulated for MVDC shipboard power systems with hybrid energy storage systems. Battery energy storage systems (BESSs) and conventional generation units are enhanced with virtual resistive droop controllers to share the steady-state power fluctuations. Supercapacitors are enhanced with virtual capacitive droop controllers to share the high frequency fluctuations in the load. The optimal flow accounts for minimizing the operational cost of the generation units in the shipboard power system considering the constraints of network, load balance, voltage profile, and power/energy limits. Second-order cone programming (SOCP) relaxation is used to approximate the nonconvexity of the optimal flow formulation and necessary conditions for global optimality of the solution are discussed. Results confirm the effectiveness of the proposed formulation in load support and managing the energy between storage units.</description><identifier>ISSN: 0885-8950</identifier><identifier>EISSN: 1558-0679</identifier><identifier>DOI: 10.1109/TPWRS.2021.3049343</identifier><identifier>CODEN: ITPSEG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Algorithms ; Batteries ; Controllers ; Distributed generation ; Electric potential ; Electrical loads ; Energy management ; Energy storage ; High frequencies ; Hybrid power systems ; Hybrid systems ; Marine vehicles ; Medium voltage ; medium voltage DC ; Optimal flow ; Optimization ; Power flow ; Power system stability ; shipboard power system ; Storage systems ; Storage units ; Supercapacitors ; virtual capacitive droop ; virtual resistive droop ; Voltage</subject><ispartof>IEEE transactions on power systems, 2021-07, Vol.36 (4), p.3728-3739</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-7d090a0441bbd0f93a8222ce6f994db5a32a1e3de526ec5951b3c1d6cdbdbcff3</citedby><cites>FETCH-LOGICAL-c339t-7d090a0441bbd0f93a8222ce6f994db5a32a1e3de526ec5951b3c1d6cdbdbcff3</cites><orcidid>0000-0001-5595-7641</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9314261$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9314261$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Khazaei, Javad</creatorcontrib><title>Optimal Flow of MVDC Shipboard Microgrids With Hybrid Storage Enhanced With Capacitive and Resistive Droop Controllers</title><title>IEEE transactions on power systems</title><addtitle>TPWRS</addtitle><description>Hybrid storage system composed of battery energy storage systems (BESSs) and supercapacitors is a promising solution to mitigate the high frequency power fluctuations of pulsed power loads (PPLs) in medium voltage DC (MVDC) shipboard power systems. Due to the presence of multiple storage units, a power sharing algorithm needs to be considered within the energy management system (EMS) in the shipboard power system. In this paper, an optimal power flow problem is formulated for MVDC shipboard power systems with hybrid energy storage systems. Battery energy storage systems (BESSs) and conventional generation units are enhanced with virtual resistive droop controllers to share the steady-state power fluctuations. Supercapacitors are enhanced with virtual capacitive droop controllers to share the high frequency fluctuations in the load. The optimal flow accounts for minimizing the operational cost of the generation units in the shipboard power system considering the constraints of network, load balance, voltage profile, and power/energy limits. Second-order cone programming (SOCP) relaxation is used to approximate the nonconvexity of the optimal flow formulation and necessary conditions for global optimality of the solution are discussed. Results confirm the effectiveness of the proposed formulation in load support and managing the energy between storage units.</description><subject>Algorithms</subject><subject>Batteries</subject><subject>Controllers</subject><subject>Distributed generation</subject><subject>Electric potential</subject><subject>Electrical loads</subject><subject>Energy management</subject><subject>Energy storage</subject><subject>High frequencies</subject><subject>Hybrid power systems</subject><subject>Hybrid systems</subject><subject>Marine vehicles</subject><subject>Medium voltage</subject><subject>medium voltage DC</subject><subject>Optimal flow</subject><subject>Optimization</subject><subject>Power flow</subject><subject>Power system stability</subject><subject>shipboard power system</subject><subject>Storage systems</subject><subject>Storage units</subject><subject>Supercapacitors</subject><subject>virtual capacitive droop</subject><subject>virtual resistive droop</subject><subject>Voltage</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>eNo9kF1LwzAUhoMoOKd_QG8CXnfmo-maS-k2J2xMtukuS5qkW0ZtatJN9u_NPhAOHA7v-57DeQB4xKiHMeIvy4_VfNEjiOAeRTGnMb0CHcxYGqGkz69BB6Upi1LO0C24836LEEqC0AH7WdOab1HBUWV_oS3h9GuQwcXGNIUVTsGpkc6unVEerky7geNDEQa4aK0Taw2H9UbUUquzmIlGSNOavYaiVnCuvfGnaeCsbWBm69bZqtLO34ObUlReP1x6F3yOhstsHE1mb-_Z6ySSlPI26ivEkUBxjItCoZJTkRJCpE5KzmNVMEGJwJoqzUiiJeMMF1RilUhVqEKWJe2C5_PextmfnfZtvrU7V4eTOWExYShUElzk7Aq_eu90mTcuQHGHHKP8yDc_8c2PfPML3xB6OoeM1vo_wCmOSYLpH46beKY</recordid><startdate>202107</startdate><enddate>202107</enddate><creator>Khazaei, Javad</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Due to the presence of multiple storage units, a power sharing algorithm needs to be considered within the energy management system (EMS) in the shipboard power system. In this paper, an optimal power flow problem is formulated for MVDC shipboard power systems with hybrid energy storage systems. Battery energy storage systems (BESSs) and conventional generation units are enhanced with virtual resistive droop controllers to share the steady-state power fluctuations. Supercapacitors are enhanced with virtual capacitive droop controllers to share the high frequency fluctuations in the load. The optimal flow accounts for minimizing the operational cost of the generation units in the shipboard power system considering the constraints of network, load balance, voltage profile, and power/energy limits. 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| subjects | Algorithms Batteries Controllers Distributed generation Electric potential Electrical loads Energy management Energy storage High frequencies Hybrid power systems Hybrid systems Marine vehicles Medium voltage medium voltage DC Optimal flow Optimization Power flow Power system stability shipboard power system Storage systems Storage units Supercapacitors virtual capacitive droop virtual resistive droop Voltage |
| title | Optimal Flow of MVDC Shipboard Microgrids With Hybrid Storage Enhanced With Capacitive and Resistive Droop Controllers |
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