Active electric filtering device
The utility model discloses an active electric filtering device, comprising a current conversion circuit, an instruction current arithmetic circuit, a compensating current occurrence circuit, an automatic limiter circuit and a display-operating controller. The instruction current arithmetic circuit...
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| creator | SHAOQING LONG YAOYUE GUO RUNQUAN LI |
| description | The utility model discloses an active electric filtering device, comprising a current conversion circuit, an instruction current arithmetic circuit, a compensating current occurrence circuit, an automatic limiter circuit and a display-operating controller. The instruction current arithmetic circuit is composed of a first 2 phases/2 phases coordinate converter and a second 2 phases/2 phases coordinate converter which are respectively connected with a sine occurrence circuit and a cosine occurrence circuit connected in manner of phase-locked loop; a 3 phases/2 phases coordinate converter is connected with a first low-pass filter and a second low-pass filter in parallel by the first 2 phases/2 phases coordinate converter, and the second 2 phases/2 phases coordinate converter is connected with a 2 phases/3 phases coordinate converter; a n-times doubling circuit which is connected in front of the phase-locked loop is also included, the n-times doubling circuit converts power supply voltage ea to frequency signals, the frequency signals magnifies for n times, and n subharmonic currents are obtained. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN2746626YY</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN2746626YY</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN2746626YY3</originalsourceid><addsrcrecordid>eNrjZFBwTC7JLEtVSM1JTS4pykxWSMvMKUktysxLV0hJLctMTuVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfHOfkbmJmZmRmaRkcZEKAEAFzIlZA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Active electric filtering device</title><source>esp@cenet</source><creator>SHAOQING LONG ; YAOYUE GUO ; RUNQUAN LI</creator><creatorcontrib>SHAOQING LONG ; YAOYUE GUO ; RUNQUAN LI</creatorcontrib><description>The utility model discloses an active electric filtering device, comprising a current conversion circuit, an instruction current arithmetic circuit, a compensating current occurrence circuit, an automatic limiter circuit and a display-operating controller. The instruction current arithmetic circuit is composed of a first 2 phases/2 phases coordinate converter and a second 2 phases/2 phases coordinate converter which are respectively connected with a sine occurrence circuit and a cosine occurrence circuit connected in manner of phase-locked loop; a 3 phases/2 phases coordinate converter is connected with a first low-pass filter and a second low-pass filter in parallel by the first 2 phases/2 phases coordinate converter, and the second 2 phases/2 phases coordinate converter is connected with a 2 phases/3 phases coordinate converter; a n-times doubling circuit which is connected in front of the phase-locked loop is also included, the n-times doubling circuit converts power supply voltage ea to frequency signals, the frequency signals magnifies for n times, and n subharmonic currents are obtained.</description><edition>7</edition><language>eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2005</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=20051214&DB=EPODOC&CC=CN&NR=2746626Y$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20051214&DB=EPODOC&CC=CN&NR=2746626Y$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHAOQING LONG</creatorcontrib><creatorcontrib>YAOYUE GUO</creatorcontrib><creatorcontrib>RUNQUAN LI</creatorcontrib><title>Active electric filtering device</title><description>The utility model discloses an active electric filtering device, comprising a current conversion circuit, an instruction current arithmetic circuit, a compensating current occurrence circuit, an automatic limiter circuit and a display-operating controller. The instruction current arithmetic circuit is composed of a first 2 phases/2 phases coordinate converter and a second 2 phases/2 phases coordinate converter which are respectively connected with a sine occurrence circuit and a cosine occurrence circuit connected in manner of phase-locked loop; a 3 phases/2 phases coordinate converter is connected with a first low-pass filter and a second low-pass filter in parallel by the first 2 phases/2 phases coordinate converter, and the second 2 phases/2 phases coordinate converter is connected with a 2 phases/3 phases coordinate converter; a n-times doubling circuit which is connected in front of the phase-locked loop is also included, the n-times doubling circuit converts power supply voltage ea to frequency signals, the frequency signals magnifies for n times, and n subharmonic currents are obtained.</description><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBwTC7JLEtVSM1JTS4pykxWSMvMKUktysxLV0hJLctMTuVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfHOfkbmJmZmRmaRkcZEKAEAFzIlZA</recordid><startdate>20051214</startdate><enddate>20051214</enddate><creator>SHAOQING LONG</creator><creator>YAOYUE GUO</creator><creator>RUNQUAN LI</creator><scope>EVB</scope></search><sort><creationdate>20051214</creationdate><title>Active electric filtering device</title><author>SHAOQING LONG ; YAOYUE GUO ; RUNQUAN LI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN2746626YY3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2005</creationdate><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>SHAOQING LONG</creatorcontrib><creatorcontrib>YAOYUE GUO</creatorcontrib><creatorcontrib>RUNQUAN LI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHAOQING LONG</au><au>YAOYUE GUO</au><au>RUNQUAN LI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Active electric filtering device</title><date>2005-12-14</date><risdate>2005</risdate><abstract>The utility model discloses an active electric filtering device, comprising a current conversion circuit, an instruction current arithmetic circuit, a compensating current occurrence circuit, an automatic limiter circuit and a display-operating controller. The instruction current arithmetic circuit is composed of a first 2 phases/2 phases coordinate converter and a second 2 phases/2 phases coordinate converter which are respectively connected with a sine occurrence circuit and a cosine occurrence circuit connected in manner of phase-locked loop; a 3 phases/2 phases coordinate converter is connected with a first low-pass filter and a second low-pass filter in parallel by the first 2 phases/2 phases coordinate converter, and the second 2 phases/2 phases coordinate converter is connected with a 2 phases/3 phases coordinate converter; a n-times doubling circuit which is connected in front of the phase-locked loop is also included, the n-times doubling circuit converts power supply voltage ea to frequency signals, the frequency signals magnifies for n times, and n subharmonic currents are obtained.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Active electric filtering device |
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