POWER CONVERTER
PROBLEM TO BE SOLVED: To reduce adverse effect caused by dead time compensation.SOLUTION: An output current effective value calculation unit 107 calculates an output current effective value Irms of an inverter circuit 50. A correction coefficient calculation unit 108 calculates a correction coeffici...
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| description | PROBLEM TO BE SOLVED: To reduce adverse effect caused by dead time compensation.SOLUTION: An output current effective value calculation unit 107 calculates an output current effective value Irms of an inverter circuit 50. A correction coefficient calculation unit 108 calculates a correction coefficient Rc ( |
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A correction coefficient calculation unit 108 calculates a correction coefficient Rc (<1) which decreases as the output current effective value Irms becomes small, when the output current effective value Irms is smaller than a threshold Ith. A compensation amount after correction calculation unit 109 calculates a dead time compensation amount Vded after correction by multiplying an output current polarity sign (1 or -1), a dead time basic compensation amount Vded', and the correction coefficient Rc (Vded=sign×Rc×Vded'). A compensation amount addition unit 103 sets target voltage Vinv* by adding the dead time compensation amount Vded to temporary target voltage Vinv'*.</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>2014</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=20140922&DB=EPODOC&CC=JP&NR=2014176253A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140922&DB=EPODOC&CC=JP&NR=2014176253A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAOI NORIHIRO</creatorcontrib><title>POWER CONVERTER</title><description>PROBLEM TO BE SOLVED: To reduce adverse effect caused by dead time compensation.SOLUTION: An output current effective value calculation unit 107 calculates an output current effective value Irms of an inverter circuit 50. A correction coefficient calculation unit 108 calculates a correction coefficient Rc (<1) which decreases as the output current effective value Irms becomes small, when the output current effective value Irms is smaller than a threshold Ith. A compensation amount after correction calculation unit 109 calculates a dead time compensation amount Vded after correction by multiplying an output current polarity sign (1 or -1), a dead time basic compensation amount Vded', and the correction coefficient Rc (Vded=sign×Rc×Vded'). 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A correction coefficient calculation unit 108 calculates a correction coefficient Rc (<1) which decreases as the output current effective value Irms becomes small, when the output current effective value Irms is smaller than a threshold Ith. A compensation amount after correction calculation unit 109 calculates a dead time compensation amount Vded after correction by multiplying an output current polarity sign (1 or -1), a dead time basic compensation amount Vded', and the correction coefficient Rc (Vded=sign×Rc×Vded'). A compensation amount addition unit 103 sets target voltage Vinv* by adding the dead time compensation amount Vded to temporary target voltage Vinv'*.</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 CONVERTER |
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