Completely distributed island division method and system based on intelligent terminal unit
The invention provides a fully distributed island division method and system based on intelligent terminal units. The method comprises the following steps: acquiring each DG node of a power distribution network, installing an STU at each node of the system, and installing a circuit breaker at the wi...
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| creator | LI GUANGYA LIU JIWEN LUO JIAN ZHANG LEI WANG NING QI ZHANHUA YANG DONG WANG ZHITAO GUO SHUAI YANG XIANG HAN GUODONG ZHANG PEIJIE WANG HAO WU FENG YAN YAOSHUANG YAN TINGLI NI GUANGKUI LI YAN WANG ZHEN |
| description | The invention provides a fully distributed island division method and system based on intelligent terminal units. The method comprises the following steps: acquiring each DG node of a power distribution network, installing an STU at each node of the system, and installing a circuit breaker at the wire inlet side of each node of the system; fault information of a superior power grid or a transformer substation outlet is collected, and when a fault signal is obtained, the STU closest to the transformer substation outlet sends the fault signal to the downstream STU in the power distribution network; after the STU of the downstream DG node of the fault point receives the forwarded fault signal, the STU is used as a starting point, and island division based on heuristic rule island range gradual fusion is carried out in parallel; after island division is finished, an island boundary switch is switched off, grid connection is carried out again in a DG conversion control mode, and power supply of loads in an island |
| format | Patent |
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The method comprises the following steps: acquiring each DG node of a power distribution network, installing an STU at each node of the system, and installing a circuit breaker at the wire inlet side of each node of the system; fault information of a superior power grid or a transformer substation outlet is collected, and when a fault signal is obtained, the STU closest to the transformer substation outlet sends the fault signal to the downstream STU in the power distribution network; after the STU of the downstream DG node of the fault point receives the forwarded fault signal, the STU is used as a starting point, and island division based on heuristic rule island range gradual fusion is carried out in parallel; after island division is finished, an island boundary switch is switched off, grid connection is carried out again in a DG conversion control mode, and power supply of loads in an island</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>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=20230404&DB=EPODOC&CC=CN&NR=115912616A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230404&DB=EPODOC&CC=CN&NR=115912616A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI GUANGYA</creatorcontrib><creatorcontrib>LIU JIWEN</creatorcontrib><creatorcontrib>LUO JIAN</creatorcontrib><creatorcontrib>ZHANG LEI</creatorcontrib><creatorcontrib>WANG NING</creatorcontrib><creatorcontrib>QI ZHANHUA</creatorcontrib><creatorcontrib>YANG DONG</creatorcontrib><creatorcontrib>WANG ZHITAO</creatorcontrib><creatorcontrib>GUO SHUAI</creatorcontrib><creatorcontrib>YANG XIANG</creatorcontrib><creatorcontrib>HAN GUODONG</creatorcontrib><creatorcontrib>ZHANG PEIJIE</creatorcontrib><creatorcontrib>WANG HAO</creatorcontrib><creatorcontrib>WU FENG</creatorcontrib><creatorcontrib>YAN YAOSHUANG</creatorcontrib><creatorcontrib>YAN TINGLI</creatorcontrib><creatorcontrib>NI GUANGKUI</creatorcontrib><creatorcontrib>LI YAN</creatorcontrib><creatorcontrib>WANG ZHEN</creatorcontrib><title>Completely distributed island division method and system based on intelligent terminal unit</title><description>The invention provides a fully distributed island division method and system based on intelligent terminal units. 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The method comprises the following steps: acquiring each DG node of a power distribution network, installing an STU at each node of the system, and installing a circuit breaker at the wire inlet side of each node of the system; fault information of a superior power grid or a transformer substation outlet is collected, and when a fault signal is obtained, the STU closest to the transformer substation outlet sends the fault signal to the downstream STU in the power distribution network; after the STU of the downstream DG node of the fault point receives the forwarded fault signal, the STU is used as a starting point, and island division based on heuristic rule island range gradual fusion is carried out in parallel; after island division is finished, an island boundary switch is switched off, grid connection is carried out again in a DG conversion control mode, and power supply of loads in an island</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 | Completely distributed island division method and system based on intelligent terminal unit |
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