POWER STORAGE SYSTEM
A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear a...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | ISHIKURA, Makoto |
| description | A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear approximation on the acquired voltage-current data sets using a function form, Y=aX+b where Y denotes a voltage between terminals of the power storage device at a time of charging/discharging and X denotes a charge/discharge current, and to obtain constants a, b and a ratio b/a between the constants; and a determination unit configured to determine that variation in SOC has not occurred among the cells when the ratio b/a is within a prescribed constant ratio range, and to determine that the variation in SOC has occurred among the cells when the ratio b/a is not within the prescribed constant ratio range. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2018172776A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2018172776A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2018172776A13</originalsourceid><addsrcrecordid>eNrjZBAJ8A93DVIIDvEPcnR3VQiODA5x9eVhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfGhwUYGhhaG5kbm5maOhsbEqQIAB24fyA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>POWER STORAGE SYSTEM</title><source>esp@cenet</source><creator>ISHIKURA, Makoto</creator><creatorcontrib>ISHIKURA, Makoto</creatorcontrib><description>A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear approximation on the acquired voltage-current data sets using a function form, Y=aX+b where Y denotes a voltage between terminals of the power storage device at a time of charging/discharging and X denotes a charge/discharge current, and to obtain constants a, b and a ratio b/a between the constants; and a determination unit configured to determine that variation in SOC has not occurred among the cells when the ratio b/a is within a prescribed constant ratio range, and to determine that the variation in SOC has occurred among the cells when the ratio b/a is not within the prescribed constant ratio range.</description><language>eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; SYSTEMS FOR STORING ELECTRIC ENERGY ; TESTING</subject><creationdate>2018</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=20180621&DB=EPODOC&CC=US&NR=2018172776A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180621&DB=EPODOC&CC=US&NR=2018172776A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ISHIKURA, Makoto</creatorcontrib><title>POWER STORAGE SYSTEM</title><description>A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear approximation on the acquired voltage-current data sets using a function form, Y=aX+b where Y denotes a voltage between terminals of the power storage device at a time of charging/discharging and X denotes a charge/discharge current, and to obtain constants a, b and a ratio b/a between the constants; and a determination unit configured to determine that variation in SOC has not occurred among the cells when the ratio b/a is within a prescribed constant ratio range, and to determine that the variation in SOC has occurred among the cells when the ratio b/a is not within the prescribed constant ratio range.</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>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAJ8A93DVIIDvEPcnR3VQiODA5x9eVhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfGhwUYGhhaG5kbm5maOhsbEqQIAB24fyA</recordid><startdate>20180621</startdate><enddate>20180621</enddate><creator>ISHIKURA, Makoto</creator><scope>EVB</scope></search><sort><creationdate>20180621</creationdate><title>POWER STORAGE SYSTEM</title><author>ISHIKURA, Makoto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2018172776A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2018</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>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ISHIKURA, Makoto</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ISHIKURA, Makoto</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POWER STORAGE SYSTEM</title><date>2018-06-21</date><risdate>2018</risdate><abstract>A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear approximation on the acquired voltage-current data sets using a function form, Y=aX+b where Y denotes a voltage between terminals of the power storage device at a time of charging/discharging and X denotes a charge/discharge current, and to obtain constants a, b and a ratio b/a between the constants; and a determination unit configured to determine that variation in SOC has not occurred among the cells when the ratio b/a is within a prescribed constant ratio range, and to determine that the variation in SOC has occurred among the cells when the ratio b/a is not within the prescribed constant ratio range.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_US2018172776A1 |
| source | esp@cenet |
| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TESTING |
| title | POWER STORAGE SYSTEM |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-25T15%3A00%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=ISHIKURA,%20Makoto&rft.date=2018-06-21&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS2018172776A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |