Coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation
The present invention discloses a coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation. The method comprises the following steps: an active power of a wind farm and an active power of a photovoltaic power station are collected and an...
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| creator | LIU GAOREN ZHANG HAO ZHANG YUXIA HEI RUI |
| description | The present invention discloses a coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation. The method comprises the following steps: an active power of a wind farm and an active power of a photovoltaic power station are collected and an actual value P of a total active power is obtained; a reference value P of the filtered total active power is obtained; the reference value of the filtered total active power is subtracted by the actual value of the total active power of the wind farm and the photovoltaic power station and a corrected capacitor voltage value delta U of a half bridge sub-module is correspondingly obtained according to the absolute value of the difference; the corrected capacitor voltage value ofthe half bridge sub-module is added to an initial capacitor voltage reference value U and the amplitude is limited to obtain a corrected reference value U* of the capacitor voltage; and the number of the half bridge sub-modules needed for eac |
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The method comprises the following steps: an active power of a wind farm and an active power of a photovoltaic power station are collected and an actual value P of a total active power is obtained; a reference value P of the filtered total active power is obtained; the reference value of the filtered total active power is subtracted by the actual value of the total active power of the wind farm and the photovoltaic power station and a corrected capacitor voltage value delta U of a half bridge sub-module is correspondingly obtained according to the absolute value of the difference; the corrected capacitor voltage value ofthe half bridge sub-module is added to an initial capacitor voltage reference value U and the amplitude is limited to obtain a corrected reference value U* of the capacitor voltage; and the number of the half bridge sub-modules needed for eac</description><language>chi ; eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2019</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=20190521&DB=EPODOC&CC=CN&NR=109787265A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190521&DB=EPODOC&CC=CN&NR=109787265A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU GAOREN</creatorcontrib><creatorcontrib>ZHANG HAO</creatorcontrib><creatorcontrib>ZHANG YUXIA</creatorcontrib><creatorcontrib>HEI RUI</creatorcontrib><title>Coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation</title><description>The present invention discloses a coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation. 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The method comprises the following steps: an active power of a wind farm and an active power of a photovoltaic power station are collected and an actual value P of a total active power is obtained; a reference value P of the filtered total active power is obtained; the reference value of the filtered total active power is subtracted by the actual value of the total active power of the wind farm and the photovoltaic power station and a corrected capacitor voltage value delta U of a half bridge sub-module is correspondingly obtained according to the absolute value of the difference; the corrected capacitor voltage value ofthe half bridge sub-module is added to an initial capacitor voltage reference value U and the amplitude is limited to obtain a corrected reference value U* of the capacitor voltage; and the number of the half bridge sub-modules needed for eac</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Coordinated control method for flexible direct current transmission system for smoothing new energy output fluctuation |
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