POWER CONVERSION DEVICE

POWER CONVERSION DEVICE

This power conversion device includes: a reactor (2), switching elements (3a to 3d, 5a to 5d), a first capacitor (6), and a second capacitor (4) provided between an AC power supply (1) and a DC load (7); and a controller (8) for controlling operations of the switching elements (3a to 3d, 5a to 5d)....

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1. Verfasser: TOYODA, Hajime
Format: Patent
Sprache:eng ; fre ; ger
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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
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creator TOYODA, Hajime
description This power conversion device includes: a reactor (2), switching elements (3a to 3d, 5a to 5d), a first capacitor (6), and a second capacitor (4) provided between an AC power supply (1) and a DC load (7); and a controller (8) for controlling operations of the switching elements (3a to 3d, 5a to 5d). The controller (8) controls voltage of the first capacitor (6) and voltage of the second capacitor (4) to predetermined command values, while, in accordance with load information regarding the DC load (7), performing changeover between a first control method of controlling the switching elements (3a to 3d, 5a to 5d) at a constant switching frequency over an AC cycle of the AC power supply (1), and a second control method of controlling them at a frequency lower than the switching frequency in the first control method.
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The controller (8) controls voltage of the first capacitor (6) and voltage of the second capacitor (4) to predetermined command values, while, in accordance with load information regarding the DC load (7), performing changeover between a first control method of controlling the switching elements (3a to 3d, 5a to 5d) at a constant switching frequency over an AC cycle of the AC power supply (1), and a second control method of controlling them at a frequency lower than the switching frequency in the first control method.</description><language>eng ; fre ; ger</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>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&amp;date=20240214&amp;DB=EPODOC&amp;CC=EP&amp;NR=4270762A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20240214&amp;DB=EPODOC&amp;CC=EP&amp;NR=4270762A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TOYODA, Hajime</creatorcontrib><title>POWER CONVERSION DEVICE</title><description>This power conversion device includes: a reactor (2), switching elements (3a to 3d, 5a to 5d), a first capacitor (6), and a second capacitor (4) provided between an AC power supply (1) and a DC load (7); and a controller (8) for controlling operations of the switching elements (3a to 3d, 5a to 5d). 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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 DEVICE
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