DISPERSED POWER SUPPLY AND COUNTER-CHARGE PREVENTIVE METHOD BY DISPERSED POWER-SUPPLY FOR LINKED COMMERCIAL FREQUENCY POWER LINE
PURPOSE:To trip a DC breaker and prevent counter discharge, by stopping an inverter circuit through an abnormality detecting signal generated from each abnormality detection circuit for an abnormality in voltage-difference, voltage, and frequency. CONSTITUTION:An output voltage from an inverter 2 an...
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| creator | KOIKE SHUNICHI KUMANO TETSUHISA |
| description | PURPOSE:To trip a DC breaker and prevent counter discharge, by stopping an inverter circuit through an abnormality detecting signal generated from each abnormality detection circuit for an abnormality in voltage-difference, voltage, and frequency. CONSTITUTION:An output voltage from an inverter 2 and an output voltage (a voltage at a linkage point) from a dispersed power supply unit (A) are entered in a voltage-difference abnormality detecting circuit 8. A voltage abnormality detecting circuit 9 detects that the output voltage from the dispersed power- supply unit (A) becomes out of a permissible range. A frequency abnormality detecting circuit 10 detects that the output frequency from the dispersed power- supply unit (A) becomes out of a permissible range. A trip circuit 11 trips a DC breaker (S) provided at a linked point through an abnormality signal from these abnormality detecting circuits 8, 9 and 10. At the same time, an inverter 2 is stopped by an inverter stopping circuit 12 through the abnormality signal from the abnormality detecting circuits 8, 9 and 10, and counter discharge can be prevented. |
| format | Patent |
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CONSTITUTION:An output voltage from an inverter 2 and an output voltage (a voltage at a linkage point) from a dispersed power supply unit (A) are entered in a voltage-difference abnormality detecting circuit 8. A voltage abnormality detecting circuit 9 detects that the output voltage from the dispersed power- supply unit (A) becomes out of a permissible range. A frequency abnormality detecting circuit 10 detects that the output frequency from the dispersed power- supply unit (A) becomes out of a permissible range. A trip circuit 11 trips a DC breaker (S) provided at a linked point through an abnormality signal from these abnormality detecting circuits 8, 9 and 10. At the same time, an inverter 2 is stopped by an inverter stopping circuit 12 through the abnormality signal from the abnormality detecting circuits 8, 9 and 10, and counter discharge can be prevented.</description><edition>6</edition><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 ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONTROL OR REGULATION THEREOF ; CONTROLLING ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; PHYSICS ; REGULATING ; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>1995</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=19950317&DB=EPODOC&CC=JP&NR=H0775255A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950317&DB=EPODOC&CC=JP&NR=H0775255A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOIKE SHUNICHI</creatorcontrib><creatorcontrib>KUMANO TETSUHISA</creatorcontrib><title>DISPERSED POWER SUPPLY AND COUNTER-CHARGE PREVENTIVE METHOD BY DISPERSED POWER-SUPPLY FOR LINKED COMMERCIAL FREQUENCY POWER LINE</title><description>PURPOSE:To trip a DC breaker and prevent counter discharge, by stopping an inverter circuit through an abnormality detecting signal generated from each abnormality detection circuit for an abnormality in voltage-difference, voltage, and frequency. CONSTITUTION:An output voltage from an inverter 2 and an output voltage (a voltage at a linkage point) from a dispersed power supply unit (A) are entered in a voltage-difference abnormality detecting circuit 8. A voltage abnormality detecting circuit 9 detects that the output voltage from the dispersed power- supply unit (A) becomes out of a permissible range. A frequency abnormality detecting circuit 10 detects that the output frequency from the dispersed power- supply unit (A) becomes out of a permissible range. A trip circuit 11 trips a DC breaker (S) provided at a linked point through an abnormality signal from these abnormality detecting circuits 8, 9 and 10. 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CONSTITUTION:An output voltage from an inverter 2 and an output voltage (a voltage at a linkage point) from a dispersed power supply unit (A) are entered in a voltage-difference abnormality detecting circuit 8. A voltage abnormality detecting circuit 9 detects that the output voltage from the dispersed power- supply unit (A) becomes out of a permissible range. A frequency abnormality detecting circuit 10 detects that the output frequency from the dispersed power- supply unit (A) becomes out of a permissible range. A trip circuit 11 trips a DC breaker (S) provided at a linked point through an abnormality signal from these abnormality detecting circuits 8, 9 and 10. At the same time, an inverter 2 is stopped by an inverter stopping circuit 12 through the abnormality signal from the abnormality detecting circuits 8, 9 and 10, and counter discharge can be prevented.</abstract><edition>6</edition><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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | DISPERSED POWER SUPPLY AND COUNTER-CHARGE PREVENTIVE METHOD BY DISPERSED POWER-SUPPLY FOR LINKED COMMERCIAL FREQUENCY POWER LINE |
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