VARIABLE-SPEED GENERATOR
PURPOSE:To improve stability by using a difference between power required for a control spot and an output capable of being made to correspond by other periodic machines as a power command value for a variable speed machine. CONSTITUTION:A command-value computing section 15 outputs an opening comman...
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| creator | NOHARA GOO GOTO MASUO KATO TADAATSU SUGIMOTO OSAMU |
| description | PURPOSE:To improve stability by using a difference between power required for a control spot and an output capable of being made to correspond by other periodic machines as a power command value for a variable speed machine. CONSTITUTION:A command-value computing section 15 outputs an opening command value V for a governor valve 12 for a hydraulic turbine 13 and a speed command value N) on the basis of static head H ad an output command value P0. A phase-angle computing section 16 computes the phase angle DELTAdeltaof a secondary winding for an induction generator 100 on the basis of the output command value P0, effective power P, the speed command value N0 and a speed signal N. An excitation-quantity setting section 17 sets the quantity of the secondary winding excited by the speed signal N, the phase angle DELTAdelta and an output from a voltage regulating section 18. A proportional arithmetic section 60 compensates the output command value P0 on the generation of a grounding accident, outputs a compensated commend value P01, and absorbs the unbalanced energy of a system. |
| format | Patent |
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CONSTITUTION:A command-value computing section 15 outputs an opening command value V for a governor valve 12 for a hydraulic turbine 13 and a speed command value N) on the basis of static head H ad an output command value P0. A phase-angle computing section 16 computes the phase angle DELTAdeltaof a secondary winding for an induction generator 100 on the basis of the output command value P0, effective power P, the speed command value N0 and a speed signal N. An excitation-quantity setting section 17 sets the quantity of the secondary winding excited by the speed signal N, the phase angle DELTAdelta and an output from a voltage regulating section 18. A proportional arithmetic section 60 compensates the output command value P0 on the generation of a grounding accident, outputs a compensated commend value P01, and absorbs the unbalanced energy of a system.</description><language>eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>1987</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=19870420&DB=EPODOC&CC=JP&NR=S6285699A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870420&DB=EPODOC&CC=JP&NR=S6285699A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NOHARA GOO</creatorcontrib><creatorcontrib>GOTO MASUO</creatorcontrib><creatorcontrib>KATO TADAATSU</creatorcontrib><creatorcontrib>SUGIMOTO OSAMU</creatorcontrib><title>VARIABLE-SPEED GENERATOR</title><description>PURPOSE:To improve stability by using a difference between power required for a control spot and an output capable of being made to correspond by other periodic machines as a power command value for a variable speed machine. CONSTITUTION:A command-value computing section 15 outputs an opening command value V for a governor valve 12 for a hydraulic turbine 13 and a speed command value N) on the basis of static head H ad an output command value P0. A phase-angle computing section 16 computes the phase angle DELTAdeltaof a secondary winding for an induction generator 100 on the basis of the output command value P0, effective power P, the speed command value N0 and a speed signal N. An excitation-quantity setting section 17 sets the quantity of the secondary winding excited by the speed signal N, the phase angle DELTAdelta and an output from a voltage regulating section 18. A proportional arithmetic section 60 compensates the output command value P0 on the generation of a grounding accident, outputs a compensated commend value P01, and absorbs the unbalanced energy of a system.</description><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</subject><subject>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1987</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAIcwzydHTycdUNDnB1dVFwd_VzDXIM8Q_iYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxXgHBZkYWpmaWlo7GRCgBAL_qH7o</recordid><startdate>19870420</startdate><enddate>19870420</enddate><creator>NOHARA GOO</creator><creator>GOTO MASUO</creator><creator>KATO TADAATSU</creator><creator>SUGIMOTO OSAMU</creator><scope>EVB</scope></search><sort><creationdate>19870420</creationdate><title>VARIABLE-SPEED GENERATOR</title><author>NOHARA GOO ; GOTO MASUO ; KATO TADAATSU ; SUGIMOTO OSAMU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS6285699A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1987</creationdate><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</topic><topic>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>NOHARA GOO</creatorcontrib><creatorcontrib>GOTO MASUO</creatorcontrib><creatorcontrib>KATO TADAATSU</creatorcontrib><creatorcontrib>SUGIMOTO OSAMU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NOHARA GOO</au><au>GOTO MASUO</au><au>KATO TADAATSU</au><au>SUGIMOTO OSAMU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VARIABLE-SPEED GENERATOR</title><date>1987-04-20</date><risdate>1987</risdate><abstract>PURPOSE:To improve stability by using a difference between power required for a control spot and an output capable of being made to correspond by other periodic machines as a power command value for a variable speed machine. CONSTITUTION:A command-value computing section 15 outputs an opening command value V for a governor valve 12 for a hydraulic turbine 13 and a speed command value N) on the basis of static head H ad an output command value P0. A phase-angle computing section 16 computes the phase angle DELTAdeltaof a secondary winding for an induction generator 100 on the basis of the output command value P0, effective power P, the speed command value N0 and a speed signal N. An excitation-quantity setting section 17 sets the quantity of the secondary winding excited by the speed signal N, the phase angle DELTAdelta and an output from a voltage regulating section 18. A proportional arithmetic section 60 compensates the output command value P0 on the generation of a grounding accident, outputs a compensated commend value P01, and absorbs the unbalanced energy of a system.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | VARIABLE-SPEED GENERATOR |
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