Medium voltage distribution network parameter identification method based on unscented Kalman filter method
The invention relates to a medium-voltage power distribution network parameter identification method based on an unscented Kalman filter method. The method comprises the following steps: acquiring a node voltage amplitude, injected active power and reactive power of a power distribution network thro...
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| creator | ZHANG TAO YE YING DENG MINGRUI ZHAO YAO LI DONGDONG XU HAOGE |
| description | The invention relates to a medium-voltage power distribution network parameter identification method based on an unscented Kalman filter method. The method comprises the following steps: acquiring a node voltage amplitude, injected active power and reactive power of a power distribution network through a measuring device; under the condition that the topology of the power distribution network is known, according to the active power and the reactive power of a measurement node, forward derivation is carried out from a tail node by utilizing a Dijkstra algorithm to obtain the total power of a head node of the power distribution network; performing backward derivation from the head node by using a breadth-first search algorithm to obtain branch power of each branch in the power distribution network; obtaining an approximate parameter identification result by using a voltage loss calculation formula and a linear regression algorithm through the obtained branch power; and finally, establishing a state equation and |
| format | Patent |
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The method comprises the following steps: acquiring a node voltage amplitude, injected active power and reactive power of a power distribution network through a measuring device; under the condition that the topology of the power distribution network is known, according to the active power and the reactive power of a measurement node, forward derivation is carried out from a tail node by utilizing a Dijkstra algorithm to obtain the total power of a head node of the power distribution network; performing backward derivation from the head node by using a breadth-first search algorithm to obtain branch power of each branch in the power distribution network; obtaining an approximate parameter identification result by using a voltage loss calculation formula and a linear regression algorithm through the obtained branch power; and finally, establishing a state equation and</description><language>chi ; eng</language><subject>CALCULATING ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; COMPUTING ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; GENERATION ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; SYSTEMS FOR STORING ELECTRIC ENERGY ; TESTING</subject><creationdate>2024</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=20240419&DB=EPODOC&CC=CN&NR=117913807A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240419&DB=EPODOC&CC=CN&NR=117913807A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG TAO</creatorcontrib><creatorcontrib>YE YING</creatorcontrib><creatorcontrib>DENG MINGRUI</creatorcontrib><creatorcontrib>ZHAO YAO</creatorcontrib><creatorcontrib>LI DONGDONG</creatorcontrib><creatorcontrib>XU HAOGE</creatorcontrib><title>Medium voltage distribution network parameter identification method based on unscented Kalman filter method</title><description>The invention relates to a medium-voltage power distribution network parameter identification method based on an unscented Kalman filter method. 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The method comprises the following steps: acquiring a node voltage amplitude, injected active power and reactive power of a power distribution network through a measuring device; under the condition that the topology of the power distribution network is known, according to the active power and the reactive power of a measurement node, forward derivation is carried out from a tail node by utilizing a Dijkstra algorithm to obtain the total power of a head node of the power distribution network; performing backward derivation from the head node by using a breadth-first search algorithm to obtain branch power of each branch in the power distribution network; obtaining an approximate parameter identification result by using a voltage loss calculation formula and a linear regression algorithm through the obtained branch power; and finally, establishing a state equation and</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TESTING |
| title | Medium voltage distribution network parameter identification method based on unscented Kalman filter method |
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