Power conversion system configured to perform power conversion between direct current and three-phase alternating current
A power conversion system includes a converter circuit and a control circuit. The control circuit controls, through use of PWM signals, high potential-side switches for a U-phase circuit, a V-phase circuit, and a W-phase circuit, respectively. The control circuit alternately switches between a first...
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| creator | Norisada, Takaaki Kamon, Yutaka Kusama, Fumito |
| description | A power conversion system includes a converter circuit and a control circuit. The control circuit controls, through use of PWM signals, high potential-side switches for a U-phase circuit, a V-phase circuit, and a W-phase circuit, respectively. The control circuit alternately switches between a first modulation method and a second modulation method at each half carrier period of each of the PWM signals. In the first modulation method, the control circuit determines, as a first value, a duty ratio of the PWM signal for one of a U phase, a V phase, and a W phase that has a maximum phase voltage. In the second modulation method, the control circuit determines, as a second value, the duty ratio of the PWM signal for one of the U phase, the V phase, and the W phase that has a minimum phase voltage. |
| format | Patent |
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The control circuit controls, through use of PWM signals, high potential-side switches for a U-phase circuit, a V-phase circuit, and a W-phase circuit, respectively. The control circuit alternately switches between a first modulation method and a second modulation method at each half carrier period of each of the PWM signals. In the first modulation method, the control circuit determines, as a first value, a duty ratio of the PWM signal for one of a U phase, a V phase, and a W phase that has a maximum phase voltage. In the second modulation method, the control circuit determines, as a second value, the duty ratio of the PWM signal for one of the U phase, the V phase, and the W phase that has a minimum phase voltage.</description><language>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>2021</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=20211102&DB=EPODOC&CC=US&NR=11165359B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211102&DB=EPODOC&CC=US&NR=11165359B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Norisada, Takaaki</creatorcontrib><creatorcontrib>Kamon, Yutaka</creatorcontrib><creatorcontrib>Kusama, Fumito</creatorcontrib><title>Power conversion system configured to perform power conversion between direct current and three-phase alternating current</title><description>A power conversion system includes a converter circuit and a control circuit. The control circuit controls, through use of PWM signals, high potential-side switches for a U-phase circuit, a V-phase circuit, and a W-phase circuit, respectively. The control circuit alternately switches between a first modulation method and a second modulation method at each half carrier period of each of the PWM signals. In the first modulation method, the control circuit determines, as a first value, a duty ratio of the PWM signal for one of a U phase, a V phase, and a W phase that has a maximum phase voltage. In the second modulation method, the control circuit determines, as a second value, the duty ratio of the PWM signal for one of the U phase, the V phase, and the W phase that has a minimum phase voltage.</description><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</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNy7EKwkAQhOE0FqK-w_oAKWKIYKsoloJah_OcJAfJ3rG3MeTtVdDGymrg55tpMp78ACHr-QGJzjPFMSq6d6lc3QvupJ4CpPLSUfjVN-gAMN2dwCrZXgSsZPh1awRIQ2MiyLQKYaOO66-ZJ5PKtBGLz86S5WF_2R1TBF8iBmPB0PJ6zrJsXeTFZrvK_zFP7ntITg</recordid><startdate>20211102</startdate><enddate>20211102</enddate><creator>Norisada, Takaaki</creator><creator>Kamon, Yutaka</creator><creator>Kusama, Fumito</creator><scope>EVB</scope></search><sort><creationdate>20211102</creationdate><title>Power conversion system configured to perform power conversion between direct current and three-phase alternating current</title><author>Norisada, Takaaki ; Kamon, Yutaka ; Kusama, Fumito</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US11165359B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2021</creationdate><topic>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</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>Norisada, Takaaki</creatorcontrib><creatorcontrib>Kamon, Yutaka</creatorcontrib><creatorcontrib>Kusama, Fumito</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Norisada, Takaaki</au><au>Kamon, Yutaka</au><au>Kusama, Fumito</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Power conversion system configured to perform power conversion between direct current and three-phase alternating current</title><date>2021-11-02</date><risdate>2021</risdate><abstract>A power conversion system includes a converter circuit and a control circuit. The control circuit controls, through use of PWM signals, high potential-side switches for a U-phase circuit, a V-phase circuit, and a W-phase circuit, respectively. The control circuit alternately switches between a first modulation method and a second modulation method at each half carrier period of each of the PWM signals. In the first modulation method, the control circuit determines, as a first value, a duty ratio of the PWM signal for one of a U phase, a V phase, and a W phase that has a maximum phase voltage. In the second modulation method, the control circuit determines, as a second value, the duty ratio of the PWM signal for one of the U phase, the V phase, and the W phase that has a minimum phase voltage.</abstract><oa>free_for_read</oa></addata></record> |
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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 | Power conversion system configured to perform power conversion between direct current and three-phase alternating current |
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