Electric drive systems
Fault-tolerant four-phase electric drive systems are provided. One such system comprises: a rotary electric machine 112 having a permanent magnet rotor 301 and an alternate-wound stator 302 having eight evenly-spaced coils 303-310 arranged in pairs, each coil in each pair being separated by 180 degr...
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| creator | Stephen Mark Husband Jeffrey Hobday |
| description | Fault-tolerant four-phase electric drive systems are provided. One such system comprises: a rotary electric machine 112 having a permanent magnet rotor 301 and an alternate-wound stator 302 having eight evenly-spaced coils 303-310 arranged in pairs, each coil in each pair being separated by 180 degrees; a first phase (ΦA) comprising a first one of the coil pairs and a first phase drive circuit 201 connected therewith; a second phase (ΦB) separated by +45 degrees from the first phase and comprising a second one of the coil pairs and a second phase drive circuit 202 connected therewith; a third phase (ΦC) separated by +90 degrees from the first phase and comprising a third one of the coil pairs and a third phase drive circuit 203 connected therewith; a fourth phase (ΦD) separated by +135 degrees from the first phase and comprising a fourth one of the coil pairs and a fourth phase drive circuit 204 connected therewith; and a controller 205 connected with the first, second, third and fourth phase drive circuits 201-204 to control operation thereof. |
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One such system comprises: a rotary electric machine 112 having a permanent magnet rotor 301 and an alternate-wound stator 302 having eight evenly-spaced coils 303-310 arranged in pairs, each coil in each pair being separated by 180 degrees; a first phase (ΦA) comprising a first one of the coil pairs and a first phase drive circuit 201 connected therewith; a second phase (ΦB) separated by +45 degrees from the first phase and comprising a second one of the coil pairs and a second phase drive circuit 202 connected therewith; a third phase (ΦC) separated by +90 degrees from the first phase and comprising a third one of the coil pairs and a third phase drive circuit 203 connected therewith; a fourth phase (ΦD) separated by +135 degrees from the first phase and comprising a fourth one of the coil pairs and a fourth phase drive circuit 204 connected therewith; and a controller 205 connected with the first, second, third and fourth phase drive circuits 201-204 to control operation thereof.</description><language>eng</language><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; 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=20211229&DB=EPODOC&CC=GB&NR=2586991B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211229&DB=EPODOC&CC=GB&NR=2586991B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Stephen Mark Husband</creatorcontrib><creatorcontrib>Jeffrey Hobday</creatorcontrib><title>Electric drive systems</title><description>Fault-tolerant four-phase electric drive systems are provided. 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One such system comprises: a rotary electric machine 112 having a permanent magnet rotor 301 and an alternate-wound stator 302 having eight evenly-spaced coils 303-310 arranged in pairs, each coil in each pair being separated by 180 degrees; a first phase (ΦA) comprising a first one of the coil pairs and a first phase drive circuit 201 connected therewith; a second phase (ΦB) separated by +45 degrees from the first phase and comprising a second one of the coil pairs and a second phase drive circuit 202 connected therewith; a third phase (ΦC) separated by +90 degrees from the first phase and comprising a third one of the coil pairs and a third phase drive circuit 203 connected therewith; a fourth phase (ΦD) separated by +135 degrees from the first phase and comprising a fourth one of the coil pairs and a fourth phase drive circuit 204 connected therewith; and a controller 205 connected with the first, second, third and fourth phase drive circuits 201-204 to control operation thereof.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION |
| title | Electric drive systems |
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