Fully Soft-Switched Dual-Active-Bridge Series-Resonant Converter With Switched-Impedance-Based Power Control
Both conduction loss and switching loss can contribute significantly to the overall power loss of an isolated bidirectional dual-active-bridge series-resonant dc-dc converter (DABSRC) operating at high frequency. To achieve soft switching and minimum-tank-current operation under wide-range variation...
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| Veröffentlicht in: | IEEE transactions on power electronics 2018-11, Vol.33 (11), p.9267-9281 |
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| container_title | IEEE transactions on power electronics |
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| creator | Yaqoob, Muhammad Ka-Hong Loo Yuk Ming Lai |
| description | Both conduction loss and switching loss can contribute significantly to the overall power loss of an isolated bidirectional dual-active-bridge series-resonant dc-dc converter (DABSRC) operating at high frequency. To achieve soft switching and minimum-tank-current operation under wide-range variations in output voltage and current, a switched-impedance-based DABSRC is proposed. Minimum-tank-current operation aims to reduce conduction loss arising from circulating current at the low voltage, high-current side of DABSRC. Full-range soft switching is achieved in all switches, thus, switching loss is significantly reduced. With this new topology, power control is achieved by controlling a switch-controlled capacitor in the series resonant tank while ensuring minimum-tank-current operation and soft switching in all switches. The proposed topology and modulation scheme are validated by means of a 1-kW experimental prototype of DABSRC operating at 100 kHz designed to interface a 250-V dc bus to a supercapacitor with a rated output voltage of 48 V. The effectiveness of the proposed topology for charging/discharging a supercapacitor at a maximum rated power of 1 kW is verified by simulations and experimental results with a maximum efficiency of 97.5%. |
| doi_str_mv | 10.1109/TPEL.2018.2796137 |
| format | Article |
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To achieve soft switching and minimum-tank-current operation under wide-range variations in output voltage and current, a switched-impedance-based DABSRC is proposed. Minimum-tank-current operation aims to reduce conduction loss arising from circulating current at the low voltage, high-current side of DABSRC. Full-range soft switching is achieved in all switches, thus, switching loss is significantly reduced. With this new topology, power control is achieved by controlling a switch-controlled capacitor in the series resonant tank while ensuring minimum-tank-current operation and soft switching in all switches. The proposed topology and modulation scheme are validated by means of a 1-kW experimental prototype of DABSRC operating at 100 kHz designed to interface a 250-V dc bus to a supercapacitor with a rated output voltage of 48 V. 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(IEEE) 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-7b3584333d2ef8ddbbd19b46be3973f34ad61c3cc0e0d5197a21dfb18b62c6663</citedby><cites>FETCH-LOGICAL-c293t-7b3584333d2ef8ddbbd19b46be3973f34ad61c3cc0e0d5197a21dfb18b62c6663</cites><orcidid>0000-0003-0111-6665 ; 0000-0001-8033-7807</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8265182$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8265182$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Yaqoob, Muhammad</creatorcontrib><creatorcontrib>Ka-Hong Loo</creatorcontrib><creatorcontrib>Yuk Ming Lai</creatorcontrib><title>Fully Soft-Switched Dual-Active-Bridge Series-Resonant Converter With Switched-Impedance-Based Power Control</title><title>IEEE transactions on power electronics</title><addtitle>TPEL</addtitle><description>Both conduction loss and switching loss can contribute significantly to the overall power loss of an isolated bidirectional dual-active-bridge series-resonant dc-dc converter (DABSRC) operating at high frequency. To achieve soft switching and minimum-tank-current operation under wide-range variations in output voltage and current, a switched-impedance-based DABSRC is proposed. Minimum-tank-current operation aims to reduce conduction loss arising from circulating current at the low voltage, high-current side of DABSRC. Full-range soft switching is achieved in all switches, thus, switching loss is significantly reduced. With this new topology, power control is achieved by controlling a switch-controlled capacitor in the series resonant tank while ensuring minimum-tank-current operation and soft switching in all switches. The proposed topology and modulation scheme are validated by means of a 1-kW experimental prototype of DABSRC operating at 100 kHz designed to interface a 250-V dc bus to a supercapacitor with a rated output voltage of 48 V. The effectiveness of the proposed topology for charging/discharging a supercapacitor at a maximum rated power of 1 kW is verified by simulations and experimental results with a maximum efficiency of 97.5%.</description><subject>Bridge circuits</subject><subject>Capacitors</subject><subject>Conduction losses</subject><subject>Converters</subject><subject>Data buses</subject><subject>Dual-active-bridge (DAB) converter</subject><subject>Impedance</subject><subject>Low voltage</subject><subject>minimum-tank-current operation</subject><subject>Modulation</subject><subject>Power control</subject><subject>Power loss</subject><subject>Soft switching</subject><subject>supercapacitor</subject><subject>Supercapacitors</subject><subject>switch-controlled capacitor (SSC)</subject><subject>Switches</subject><subject>Switching</subject><subject>Switching loss</subject><subject>Topology</subject><issn>0885-8993</issn><issn>1941-0107</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kF9PwjAURxujiYh-AOPLEp-Lve3-tI-IoCQkEsH4uGztnYyMDdsOwrd3BPTpvpzzu8kh5B7YAICpp-V8PBtwBnLAExWDSC5ID1QIlAFLLkmPSRlRqZS4JjfOrRmDMGLQI9WkrapDsGgKTxf70usVmuClzSo61L7cIX22pfnGYIG2REc_0DV1Vvtg1NQ7tB5t8FX6VfCn0ulmiyardSdmrpuaN_uO6Whvm-qWXBVZ5fDufPvkczJejt7o7P11OhrOqOZKeJrkIpKhEMJwLKQxeW5A5WGco1CJKESYmRi00JohMxGoJONgihxkHnMdx7Hok8fT7tY2Py06n66b1tbdy5R3IVTIeBJ2FJwobRvnLBbp1pabzB5SYOkxanqMmh6jpueonfNwckpE_OcljyOQXPwCPf1z2A</recordid><startdate>20181101</startdate><enddate>20181101</enddate><creator>Yaqoob, Muhammad</creator><creator>Ka-Hong Loo</creator><creator>Yuk Ming Lai</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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To achieve soft switching and minimum-tank-current operation under wide-range variations in output voltage and current, a switched-impedance-based DABSRC is proposed. Minimum-tank-current operation aims to reduce conduction loss arising from circulating current at the low voltage, high-current side of DABSRC. Full-range soft switching is achieved in all switches, thus, switching loss is significantly reduced. With this new topology, power control is achieved by controlling a switch-controlled capacitor in the series resonant tank while ensuring minimum-tank-current operation and soft switching in all switches. The proposed topology and modulation scheme are validated by means of a 1-kW experimental prototype of DABSRC operating at 100 kHz designed to interface a 250-V dc bus to a supercapacitor with a rated output voltage of 48 V. 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| ispartof | IEEE transactions on power electronics, 2018-11, Vol.33 (11), p.9267-9281 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Bridge circuits Capacitors Conduction losses Converters Data buses Dual-active-bridge (DAB) converter Impedance Low voltage minimum-tank-current operation Modulation Power control Power loss Soft switching supercapacitor Supercapacitors switch-controlled capacitor (SSC) Switches Switching Switching loss Topology |
| title | Fully Soft-Switched Dual-Active-Bridge Series-Resonant Converter With Switched-Impedance-Based Power Control |
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