Alternating current and direct current micro-grid interconnection converter control method based on triple phase shift and frequency conversion control
The invention relates to the field of alternating current and direct current micro-grids, in particular to an alternating current and direct current micro-grid interconnection converter control method based on triple shift and frequency conversion control. According to the invention, the problems of...
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| creator | WANG WEI XU DIANGUO XUE RUINAN WANG PANBAO GUO DONGXIN DING SIBAO JIANG SHIQI |
| description | The invention relates to the field of alternating current and direct current micro-grids, in particular to an alternating current and direct current micro-grid interconnection converter control method based on triple shift and frequency conversion control. According to the invention, the problems of non-linear power control, difficulty in design of control links, low equipment power density, large size of a voltage-stabilizing electrolytic capacitor and serious switching loss in the traditional scheme are solved. The isolated grid-connected three-phase converter is composed of a dual-active-bridge converter and a full-bridge inverter, the control flexibility is improved through a triple phase-shifting modulation mode, linear control over output power by control coordinates is achieved, and a better control effect is achieved; a voltage-stabilizing electrolytic capacitor at the direct current side of the converter is replaced by a thin-film capacitor with a smaller size, so that the design cost and the hardwar |
| format | Patent |
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According to the invention, the problems of non-linear power control, difficulty in design of control links, low equipment power density, large size of a voltage-stabilizing electrolytic capacitor and serious switching loss in the traditional scheme are solved. The isolated grid-connected three-phase converter is composed of a dual-active-bridge converter and a full-bridge inverter, the control flexibility is improved through a triple phase-shifting modulation mode, linear control over output power by control coordinates is achieved, and a better control effect is achieved; a voltage-stabilizing electrolytic capacitor at the direct current side of the converter is replaced by a thin-film capacitor with a smaller size, so that the design cost and the hardwar</description><language>chi ; eng</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221209&DB=EPODOC&CC=CN&NR=115459338A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221209&DB=EPODOC&CC=CN&NR=115459338A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG WEI</creatorcontrib><creatorcontrib>XU DIANGUO</creatorcontrib><creatorcontrib>XUE RUINAN</creatorcontrib><creatorcontrib>WANG PANBAO</creatorcontrib><creatorcontrib>GUO DONGXIN</creatorcontrib><creatorcontrib>DING SIBAO</creatorcontrib><creatorcontrib>JIANG SHIQI</creatorcontrib><title>Alternating current and direct current micro-grid interconnection converter control method based on triple phase shift and frequency conversion control</title><description>The invention relates to the field of alternating current and direct current micro-grids, in particular to an alternating current and direct current micro-grid interconnection converter control method based on triple shift and frequency conversion control. 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According to the invention, the problems of non-linear power control, difficulty in design of control links, low equipment power density, large size of a voltage-stabilizing electrolytic capacitor and serious switching loss in the traditional scheme are solved. The isolated grid-connected three-phase converter is composed of a dual-active-bridge converter and a full-bridge inverter, the control flexibility is improved through a triple phase-shifting modulation mode, linear control over output power by control coordinates is achieved, and a better control effect is achieved; a voltage-stabilizing electrolytic capacitor at the direct current side of the converter is replaced by a thin-film capacitor with a smaller size, so that the design cost and the hardwar</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Alternating current and direct current micro-grid interconnection converter control method based on triple phase shift and frequency conversion control |
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