Single-phase power grid characteristic extraction method

Single-phase power grid characteristic extraction method

The invention discloses a method for extracting characteristics of a single-phase power grid, which comprises the following steps of: constructing an orthogonal grid-side voltage signal vector by adopting a generalized second-order integrator method, simultaneously filtering a grid-side voltage sign...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SONG JUNJIAN, JIANG SONGYANG, REN BAOZHU, ZHOU PENG, LI YUNNAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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 SONG JUNJIAN
JIANG SONGYANG
REN BAOZHU
ZHOU PENG
LI YUNNAN
description The invention discloses a method for extracting characteristics of a single-phase power grid, which comprises the following steps of: constructing an orthogonal grid-side voltage signal vector by adopting a generalized second-order integrator method, simultaneously filtering a grid-side voltage signal, and obtaining phase information of grid-side voltage through dq coordinate transformation; uq is obtained through the error of the actual phase value theta * of the grid-side voltage and the phase value theta output by the phase-locked loop, then the error of the Uq and # imgabs0 # is adjusted through PI to obtain the error of the angular frequency, and the error of the angular frequency is added to the angular frequency 2pif of the grid-side voltage to obtain phase information. The method is based on a simple, efficient and rapid grid-side voltage characteristic extraction method, can be applied to the fields of rail transit, wind power generation and the like, and can enhance the adaptability of a grid-side c
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN117761388A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN117761388A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN117761388A3</originalsourceid><addsrcrecordid>eNrjZLAIzsxLz0nVLchILE5VKMgvTy1SSC_KTFFIzkgsSkwuSS3KLC7JTFZIrSgBcTPz8xRyU0sy8lN4GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8s5-hobm5maGxhYWjMTFqADjWLtE</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Single-phase power grid characteristic extraction method</title><source>esp@cenet</source><creator>SONG JUNJIAN ; JIANG SONGYANG ; REN BAOZHU ; ZHOU PENG ; LI YUNNAN</creator><creatorcontrib>SONG JUNJIAN ; JIANG SONGYANG ; REN BAOZHU ; ZHOU PENG ; LI YUNNAN</creatorcontrib><description>The invention discloses a method for extracting characteristics of a single-phase power grid, which comprises the following steps of: constructing an orthogonal grid-side voltage signal vector by adopting a generalized second-order integrator method, simultaneously filtering a grid-side voltage signal, and obtaining phase information of grid-side voltage through dq coordinate transformation; uq is obtained through the error of the actual phase value theta * of the grid-side voltage and the phase value theta output by the phase-locked loop, then the error of the Uq and # imgabs0 # is adjusted through PI to obtain the error of the angular frequency, and the error of the angular frequency is added to the angular frequency 2pif of the grid-side voltage to obtain phase information. The method is based on a simple, efficient and rapid grid-side voltage characteristic extraction method, can be applied to the fields of rail transit, wind power generation and the like, and can enhance the adaptability of a grid-side c</description><language>chi ; eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2024</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&amp;date=20240326&amp;DB=EPODOC&amp;CC=CN&amp;NR=117761388A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20240326&amp;DB=EPODOC&amp;CC=CN&amp;NR=117761388A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SONG JUNJIAN</creatorcontrib><creatorcontrib>JIANG SONGYANG</creatorcontrib><creatorcontrib>REN BAOZHU</creatorcontrib><creatorcontrib>ZHOU PENG</creatorcontrib><creatorcontrib>LI YUNNAN</creatorcontrib><title>Single-phase power grid characteristic extraction method</title><description>The invention discloses a method for extracting characteristics of a single-phase power grid, which comprises the following steps of: constructing an orthogonal grid-side voltage signal vector by adopting a generalized second-order integrator method, simultaneously filtering a grid-side voltage signal, and obtaining phase information of grid-side voltage through dq coordinate transformation; uq is obtained through the error of the actual phase value theta * of the grid-side voltage and the phase value theta output by the phase-locked loop, then the error of the Uq and # imgabs0 # is adjusted through PI to obtain the error of the angular frequency, and the error of the angular frequency is added to the angular frequency 2pif of the grid-side voltage to obtain phase information. The method is based on a simple, efficient and rapid grid-side voltage characteristic extraction method, can be applied to the fields of rail transit, wind power generation and the like, and can enhance the adaptability of a grid-side c</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAIzsxLz0nVLchILE5VKMgvTy1SSC_KTFFIzkgsSkwuSS3KLC7JTFZIrSgBcTPz8xRyU0sy8lN4GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8s5-hobm5maGxhYWjMTFqADjWLtE</recordid><startdate>20240326</startdate><enddate>20240326</enddate><creator>SONG JUNJIAN</creator><creator>JIANG SONGYANG</creator><creator>REN BAOZHU</creator><creator>ZHOU PENG</creator><creator>LI YUNNAN</creator><scope>EVB</scope></search><sort><creationdate>20240326</creationdate><title>Single-phase power grid characteristic extraction method</title><author>SONG JUNJIAN ; JIANG SONGYANG ; REN BAOZHU ; ZHOU PENG ; LI YUNNAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117761388A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SONG JUNJIAN</creatorcontrib><creatorcontrib>JIANG SONGYANG</creatorcontrib><creatorcontrib>REN BAOZHU</creatorcontrib><creatorcontrib>ZHOU PENG</creatorcontrib><creatorcontrib>LI YUNNAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SONG JUNJIAN</au><au>JIANG SONGYANG</au><au>REN BAOZHU</au><au>ZHOU PENG</au><au>LI YUNNAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Single-phase power grid characteristic extraction method</title><date>2024-03-26</date><risdate>2024</risdate><abstract>The invention discloses a method for extracting characteristics of a single-phase power grid, which comprises the following steps of: constructing an orthogonal grid-side voltage signal vector by adopting a generalized second-order integrator method, simultaneously filtering a grid-side voltage signal, and obtaining phase information of grid-side voltage through dq coordinate transformation; uq is obtained through the error of the actual phase value theta * of the grid-side voltage and the phase value theta output by the phase-locked loop, then the error of the Uq and # imgabs0 # is adjusted through PI to obtain the error of the angular frequency, and the error of the angular frequency is added to the angular frequency 2pif of the grid-side voltage to obtain phase information. The method is based on a simple, efficient and rapid grid-side voltage characteristic extraction method, can be applied to the fields of rail transit, wind power generation and the like, and can enhance the adaptability of a grid-side c</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_CN117761388A
source esp@cenet
subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Single-phase power grid characteristic extraction method
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-26T15%3A52%3A32IST&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=SONG%20JUNJIAN&rft.date=2024-03-26&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN117761388A%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