Method for analyzing influence of excitation system on dynamic reactive power support of direct current receiving end power grid after flexibility transformation of unit
The invention discloses a method for analyzing influence of an excitation system on dynamic reactive power support of a direct-current receiving end power grid after flexibility transformation of a unit. The method comprises the following steps: establishing a corresponding excitation system mathema...
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| creator | WANG TAO HUANG WENTAO ZHOU LIBING HAN GANG SUN GUANQUN LI JIAZE WANG YU ZHANG KANJUN TAO ZICAN CHEN RUSI WANG ERXI RUAN LING WANG JIN CAI DEFU YIN BINXIN WAN LI ZHANG FENGGE |
| description | The invention discloses a method for analyzing influence of an excitation system on dynamic reactive power support of a direct-current receiving end power grid after flexibility transformation of a unit. The method comprises the following steps: establishing a corresponding excitation system mathematical model according to the structure of the excitation system; calculating an arc change voltage drop coefficient, a regulator output maximum amplitude limit, a regulator output minimum amplitude limit and an excitation system amplification factor in the excitation system mathematical model to obtain an excitation system transfer function and an excitation voltage change rule; establishing a relational expression of excitation voltage and excitation current of the flexibly modified unit, and obtaining a transient reactive power output expression of the flexibly modified unit; obtaining an AC system critical voltage corresponding to the DC commutation failure according to the high-voltage DC power transmission pro |
| format | Patent |
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The method comprises the following steps: establishing a corresponding excitation system mathematical model according to the structure of the excitation system; calculating an arc change voltage drop coefficient, a regulator output maximum amplitude limit, a regulator output minimum amplitude limit and an excitation system amplification factor in the excitation system mathematical model to obtain an excitation system transfer function and an excitation voltage change rule; establishing a relational expression of excitation voltage and excitation current of the flexibly modified unit, and obtaining a transient reactive power output expression of the flexibly modified unit; obtaining an AC system critical voltage corresponding to the DC commutation failure according to the high-voltage DC power transmission pro</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>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=20240322&DB=EPODOC&CC=CN&NR=117748479A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240322&DB=EPODOC&CC=CN&NR=117748479A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG TAO</creatorcontrib><creatorcontrib>HUANG WENTAO</creatorcontrib><creatorcontrib>ZHOU LIBING</creatorcontrib><creatorcontrib>HAN GANG</creatorcontrib><creatorcontrib>SUN GUANQUN</creatorcontrib><creatorcontrib>LI JIAZE</creatorcontrib><creatorcontrib>WANG YU</creatorcontrib><creatorcontrib>ZHANG KANJUN</creatorcontrib><creatorcontrib>TAO ZICAN</creatorcontrib><creatorcontrib>CHEN RUSI</creatorcontrib><creatorcontrib>WANG ERXI</creatorcontrib><creatorcontrib>RUAN LING</creatorcontrib><creatorcontrib>WANG JIN</creatorcontrib><creatorcontrib>CAI DEFU</creatorcontrib><creatorcontrib>YIN BINXIN</creatorcontrib><creatorcontrib>WAN LI</creatorcontrib><creatorcontrib>ZHANG FENGGE</creatorcontrib><title>Method for analyzing influence of excitation system on dynamic reactive power support of direct current receiving end power grid after flexibility transformation of unit</title><description>The invention discloses a method for analyzing influence of an excitation system on dynamic reactive power support of a direct-current receiving end power grid after flexibility transformation of a unit. 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The method comprises the following steps: establishing a corresponding excitation system mathematical model according to the structure of the excitation system; calculating an arc change voltage drop coefficient, a regulator output maximum amplitude limit, a regulator output minimum amplitude limit and an excitation system amplification factor in the excitation system mathematical model to obtain an excitation system transfer function and an excitation voltage change rule; establishing a relational expression of excitation voltage and excitation current of the flexibly modified unit, and obtaining a transient reactive power output expression of the flexibly modified unit; obtaining an AC system critical voltage corresponding to the DC commutation failure according to the high-voltage DC power transmission pro</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 | Method for analyzing influence of excitation system on dynamic reactive power support of direct current receiving end power grid after flexibility transformation of unit |
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