THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES

THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES

FIELD: electrical and electromechanical engineering; three-phase squirrel-cage induction motors and synchronous generators. ^ SUBSTANCE: proposed three-phase double-layer symmetrical fractional-slot winding has number of slots per pole per phase q = 15/13 of 6p = 78c coil groups; it is 2p = 26c lap...

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Hauptverfasser: AKHUNOV T.A, PETROV JU.N, MAKAROV L.N, POPOV V.I
Format: Patent
Sprache:eng ; rus
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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creator AKHUNOV T.A
PETROV JU.N
MAKAROV L.N
POPOV V.I
description FIELD: electrical and electromechanical engineering; three-phase squirrel-cage induction motors and synchronous generators. ^ SUBSTANCE: proposed three-phase double-layer symmetrical fractional-slot winding has number of slots per pole per phase q = 15/13 of 6p = 78c coil groups; it is 2p = 26c lap winding placed in z = 90c slots. Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. Groups 1G through 13G of first of similar groupings repeating 6c times have coil turn number (1 - x)wc for double-coil groups 1G and 7G, (1 - x)wc for groups 4G, 10G, 11G, and wc for remaining groups with starts of phases I, II, III running from starts of groups 1G, 27G, 53G, respectively, where c = 1 and 2; wc is turn number in completely filled up slot at optimal value of x = xopt = 0.32. ^ EFFECT: improved harmonic content of mmf and reduced differential dissipation. ^ 1 cl, 4 dwg
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Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. Groups 1G through 13G of first of similar groupings repeating 6c times have coil turn number (1 - x)wc for double-coil groups 1G and 7G, (1 - x)wc for groups 4G, 10G, 11G, and wc for remaining groups with starts of phases I, II, III running from starts of groups 1G, 27G, 53G, respectively, where c = 1 and 2; wc is turn number in completely filled up slot at optimal value of x = xopt = 0.32. ^ EFFECT: improved harmonic content of mmf and reduced differential dissipation. ^ 1 cl, 4 dwg</description><edition>7</edition><language>eng ; rus</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; GENERATION</subject><creationdate>2004</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=20040827&amp;DB=EPODOC&amp;CC=RU&amp;NR=2235402C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20040827&amp;DB=EPODOC&amp;CC=RU&amp;NR=2235402C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AKHUNOV T.A</creatorcontrib><creatorcontrib>PETROV JU.N</creatorcontrib><creatorcontrib>MAKAROV L.N</creatorcontrib><creatorcontrib>POPOV V.I</creatorcontrib><title>THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES</title><description>FIELD: electrical and electromechanical engineering; three-phase squirrel-cage induction motors and synchronous generators. ^ SUBSTANCE: proposed three-phase double-layer symmetrical fractional-slot winding has number of slots per pole per phase q = 15/13 of 6p = 78c coil groups; it is 2p = 26c lap winding placed in z = 90c slots. Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. 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Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. Groups 1G through 13G of first of similar groupings repeating 6c times have coil turn number (1 - x)wc for double-coil groups 1G and 7G, (1 - x)wc for groups 4G, 10G, 11G, and wc for remaining groups with starts of phases I, II, III running from starts of groups 1G, 27G, 53G, respectively, where c = 1 and 2; wc is turn number in completely filled up slot at optimal value of x = xopt = 0.32. ^ EFFECT: improved harmonic content of mmf and reduced differential dissipation. ^ 1 cl, 4 dwg</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
title THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES
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