Square wave modulation midpoint voltage control method and system and related components
The invention discloses a square wave modulation neutral-point voltage control method and system and related components, which are applied to a three-level inverter and comprise the following steps: acquiring the value of a current three-phase modulation wave; determining the type of the output volt...
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| creator | GAO ZHAN LAI NA XIE YANGXU CAI QI ZHOU ZHIDA WU XUANQIN GENG CHENGFEI |
| description | The invention discloses a square wave modulation neutral-point voltage control method and system and related components, which are applied to a three-level inverter and comprise the following steps: acquiring the value of a current three-phase modulation wave; determining the type of the output voltage vector according to the value of the current three-phase modulation wave; judging whether the output voltage vector type is a preset output voltage vector type or not; if yes, determining a zero-sequence component according to a vector flag bit and the value of the current three-phase modulation wave; and determining a target three-phase modulation wave according to the zero-sequence component so as to control neutral-point voltage balance of the three-level inverter. The method is used for controlling the three-level inverter, the output voltage vector type is determined to be the preset output voltage vector type, the zero-sequence component is determined according to the vector flag bit and the value of the |
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The method is used for controlling the three-level inverter, the output voltage vector type is determined to be the preset output voltage vector type, the zero-sequence component is determined according to the vector flag bit and the value of the</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>2022</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=20220830&DB=EPODOC&CC=CN&NR=114977858A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25546,76297</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220830&DB=EPODOC&CC=CN&NR=114977858A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GAO ZHAN</creatorcontrib><creatorcontrib>LAI NA</creatorcontrib><creatorcontrib>XIE YANGXU</creatorcontrib><creatorcontrib>CAI QI</creatorcontrib><creatorcontrib>ZHOU ZHIDA</creatorcontrib><creatorcontrib>WU XUANQIN</creatorcontrib><creatorcontrib>GENG CHENGFEI</creatorcontrib><title>Square wave modulation midpoint voltage control method and system and related components</title><description>The invention discloses a square wave modulation neutral-point voltage control method and system and related components, which are applied to a three-level inverter and comprise the following steps: acquiring the value of a current three-phase modulation wave; determining the type of the output voltage vector according to the value of the current three-phase modulation wave; judging whether the output voltage vector type is a preset output voltage vector type or not; if yes, determining a zero-sequence component according to a vector flag bit and the value of the current three-phase modulation wave; and determining a target three-phase modulation wave according to the zero-sequence component so as to control neutral-point voltage balance of the three-level inverter. 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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 | Square wave modulation midpoint voltage control method and system and related components |
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