Soft start control method of power electronic transformer
The invention discloses a power electronic transformer soft start control method applied to a 10kV/1kV direct current high-voltage system, a high-voltage side is formed by connecting 10 H-bridge power modules in series, a low-voltage side is formed by connecting 10 H-bridge power modules in parallel...
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| creator | HE JINPING LIN DERONG DU LITIAN ZHANG YINGHUI LUO GUOSHENG WANG XIAOHAI |
| description | The invention discloses a power electronic transformer soft start control method applied to a 10kV/1kV direct current high-voltage system, a high-voltage side is formed by connecting 10 H-bridge power modules in series, a low-voltage side is formed by connecting 10 H-bridge power modules in parallel, and the high-voltage side and the low-voltage side are connected through a high-frequency isolation transformer; before the system is started, if a direct-current power grid on one side is not electrified, the other end is pre-charged through a power electronic transformer, and at the moment, no matter whether a low-voltage side is charged by a high-voltage side or is reversed, voltage balance control among 10 series modules on the high-voltage side needs to be strictly controlled during pulse opening. According to the soft start control method provided by the invention, the voltage balance of each module in the starting process of the 10kV direct-current power grid is ensured, the voltage of the other end is ens |
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According to the soft start control method provided by the invention, the voltage balance of each module in the starting process of the 10kV direct-current power grid is ensured, the voltage of the other end is ens</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 ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</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=20230627&DB=EPODOC&CC=CN&NR=116345873A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230627&DB=EPODOC&CC=CN&NR=116345873A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HE JINPING</creatorcontrib><creatorcontrib>LIN DERONG</creatorcontrib><creatorcontrib>DU LITIAN</creatorcontrib><creatorcontrib>ZHANG YINGHUI</creatorcontrib><creatorcontrib>LUO GUOSHENG</creatorcontrib><creatorcontrib>WANG XIAOHAI</creatorcontrib><title>Soft start control method of power electronic transformer</title><description>The invention discloses a power electronic transformer soft start control method applied to a 10kV/1kV direct current high-voltage system, a high-voltage side is formed by connecting 10 H-bridge power modules in series, a low-voltage side is formed by connecting 10 H-bridge power modules in parallel, and the high-voltage side and the low-voltage side are connected through a high-frequency isolation transformer; before the system is started, if a direct-current power grid on one side is not electrified, the other end is pre-charged through a power electronic transformer, and at the moment, no matter whether a low-voltage side is charged by a high-voltage side or is reversed, voltage balance control among 10 series modules on the high-voltage side needs to be strictly controlled during pulse opening. 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According to the soft start control method provided by the invention, the voltage balance of each module in the starting process of the 10kV direct-current power grid is ensured, the voltage of the other end is ens</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | Soft start control method of power electronic transformer |
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