Network construction type photovoltaic fault ride-through control method and device
The invention relates to a network construction type photovoltaic fault ride-through control method and device. The method comprises the following steps: acquiring an outlet voltage of a photovoltaic power station; when the outlet voltage of the photovoltaic power station is smaller than or equal to...
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| creator | CHEN YI SONG RUIHUA YANG RUIXUE LIU WENZHUO ZHENG CHAO DING GUOCHENG LI WENFENG DING JIE CHEN YIJUN LI BINBIN ZHAI YUE YANG DAYE LIU GENGYUN SU WEN HUANG JIE CHEN QINGTAO ZHAO LONG BAO JIAJIA LYU SIZHUO WANG YU QIN QI FAN MINGHAO MA YABIN WANG QINGJUN NING YANG DENG JIAQING LIU XIN LYU PENGFEI JIANG JINGYA YU SHUYAN |
| description | The invention relates to a network construction type photovoltaic fault ride-through control method and device. The method comprises the following steps: acquiring an outlet voltage of a photovoltaic power station; when the outlet voltage of the photovoltaic power station is smaller than or equal to a first threshold value, starting grid-side inverter control and boost converter control; wherein the grid-side inverter control comprises adjustment of active power and reactive power of the grid-side inverter, introduction of time-varying virtual impedance between voltage virtual internal potential and outlet voltage of the grid-side inverter and adjustment of a voltage reference value in outer loop control of the grid-side inverter, and the boost converter control comprises adjustment of a power reference value of the boost converter. According to the method and the device provided by the embodiment of the invention, a virtual synchronous control rotor motion equation loop can be kept during a fault period, ine |
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The method comprises the following steps: acquiring an outlet voltage of a photovoltaic power station; when the outlet voltage of the photovoltaic power station is smaller than or equal to a first threshold value, starting grid-side inverter control and boost converter control; wherein the grid-side inverter control comprises adjustment of active power and reactive power of the grid-side inverter, introduction of time-varying virtual impedance between voltage virtual internal potential and outlet voltage of the grid-side inverter and adjustment of a voltage reference value in outer loop control of the grid-side inverter, and the boost converter control comprises adjustment of a power reference value of the boost converter. According to the method and the device provided by the embodiment of the invention, a virtual synchronous control rotor motion equation loop can be kept during a fault period, ine</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>2023</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=20231121&DB=EPODOC&CC=CN&NR=117096944A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231121&DB=EPODOC&CC=CN&NR=117096944A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHEN YI</creatorcontrib><creatorcontrib>SONG RUIHUA</creatorcontrib><creatorcontrib>YANG RUIXUE</creatorcontrib><creatorcontrib>LIU WENZHUO</creatorcontrib><creatorcontrib>ZHENG CHAO</creatorcontrib><creatorcontrib>DING GUOCHENG</creatorcontrib><creatorcontrib>LI WENFENG</creatorcontrib><creatorcontrib>DING JIE</creatorcontrib><creatorcontrib>CHEN YIJUN</creatorcontrib><creatorcontrib>LI BINBIN</creatorcontrib><creatorcontrib>ZHAI YUE</creatorcontrib><creatorcontrib>YANG DAYE</creatorcontrib><creatorcontrib>LIU GENGYUN</creatorcontrib><creatorcontrib>SU WEN</creatorcontrib><creatorcontrib>HUANG JIE</creatorcontrib><creatorcontrib>CHEN QINGTAO</creatorcontrib><creatorcontrib>ZHAO LONG</creatorcontrib><creatorcontrib>BAO JIAJIA</creatorcontrib><creatorcontrib>LYU SIZHUO</creatorcontrib><creatorcontrib>WANG YU</creatorcontrib><creatorcontrib>QIN QI</creatorcontrib><creatorcontrib>FAN MINGHAO</creatorcontrib><creatorcontrib>MA YABIN</creatorcontrib><creatorcontrib>WANG QINGJUN</creatorcontrib><creatorcontrib>NING YANG</creatorcontrib><creatorcontrib>DENG JIAQING</creatorcontrib><creatorcontrib>LIU XIN</creatorcontrib><creatorcontrib>LYU PENGFEI</creatorcontrib><creatorcontrib>JIANG JINGYA</creatorcontrib><creatorcontrib>YU SHUYAN</creatorcontrib><title>Network construction type photovoltaic fault ride-through control method and device</title><description>The invention relates to a network construction type photovoltaic fault ride-through control method and device. The method comprises the following steps: acquiring an outlet voltage of a photovoltaic power station; when the outlet voltage of the photovoltaic power station is smaller than or equal to a first threshold value, starting grid-side inverter control and boost converter control; wherein the grid-side inverter control comprises adjustment of active power and reactive power of the grid-side inverter, introduction of time-varying virtual impedance between voltage virtual internal potential and outlet voltage of the grid-side inverter and adjustment of a voltage reference value in outer loop control of the grid-side inverter, and the boost converter control comprises adjustment of a power reference value of the boost converter. 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The method comprises the following steps: acquiring an outlet voltage of a photovoltaic power station; when the outlet voltage of the photovoltaic power station is smaller than or equal to a first threshold value, starting grid-side inverter control and boost converter control; wherein the grid-side inverter control comprises adjustment of active power and reactive power of the grid-side inverter, introduction of time-varying virtual impedance between voltage virtual internal potential and outlet voltage of the grid-side inverter and adjustment of a voltage reference value in outer loop control of the grid-side inverter, and the boost converter control comprises adjustment of a power reference value of the boost converter. According to the method and the device provided by the embodiment of the invention, a virtual synchronous control rotor motion equation loop can be kept during a fault period, ine</abstract><oa>free_for_read</oa></addata></record> |
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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 | Network construction type photovoltaic fault ride-through control method and device |
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