An Adaptive Dynamic Phasor Estimator Considering DC Offset for PMU Applications
A current signal often exhibits dynamic characteristics and contains decaying dc components when an earth fault occurs under power oscillations. In this paper, a dynamic phasor estimator for fault current (DPEFC) is proposed to remove the phasor-estimation errors caused by dynamic characteristics an...
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| Veröffentlicht in: | IEEE transactions on power delivery 2011-07, Vol.26 (3), p.1744-1754 |
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| creator | Rui Kun Mai Ling Fu Zhao Yang Dong Kirby, Brian Zhi Qian Bo |
| description | A current signal often exhibits dynamic characteristics and contains decaying dc components when an earth fault occurs under power oscillations. In this paper, a dynamic phasor estimator for fault current (DPEFC) is proposed to remove the phasor-estimation errors caused by dynamic characteristics and decaying dc components. The proposed DPEEC estimates dynamic characteristics and decaying dc components accurately by an iterative procedure. It can also eliminate the impacts on phasor estimation by reassigning estimations from discrete Fourier transform with the knowledge of the fundamental phasor and the dc components. The performance of the proposed DPEFC is evaluated by computer-simulated signals and EMTDC-generated signals. The results indicate that DPEFC can achieve accurate phasor estimation of fault current in the presence of dynamic characteristics and decaying dc components with a minimal increase of computational cost which meets the requirements of the application in phasor measurement units. |
| doi_str_mv | 10.1109/TPWRD.2011.2119334 |
| format | Article |
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In this paper, a dynamic phasor estimator for fault current (DPEFC) is proposed to remove the phasor-estimation errors caused by dynamic characteristics and decaying dc components. The proposed DPEEC estimates dynamic characteristics and decaying dc components accurately by an iterative procedure. It can also eliminate the impacts on phasor estimation by reassigning estimations from discrete Fourier transform with the knowledge of the fundamental phasor and the dc components. The performance of the proposed DPEFC is evaluated by computer-simulated signals and EMTDC-generated signals. The results indicate that DPEFC can achieve accurate phasor estimation of fault current in the presence of dynamic characteristics and decaying dc components with a minimal increase of computational cost which meets the requirements of the application in phasor measurement units.</description><identifier>ISSN: 0885-8977</identifier><identifier>EISSN: 1937-4208</identifier><identifier>DOI: 10.1109/TPWRD.2011.2119334</identifier><identifier>CODEN: ITPDE5</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Computational efficiency ; Decay ; Decaying dc components ; Direct current ; discrete Fourier transform (DFT) ; Discrete Fourier transforms ; Disturbances. Regulation. Protection ; Dynamic characteristics ; Dynamics ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Estimation ; Estimators ; Exact sciences and technology ; fault current ; Fault currents ; Faults ; Heuristic algorithms ; Operation. Load control. Reliability ; phasor estimation ; Phasor measurement units ; phasor measurement units (PMUs) ; Phasors ; Power networks and lines ; Power system dynamics ; Studies</subject><ispartof>IEEE transactions on power delivery, 2011-07, Vol.26 (3), p.1744-1754</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Jul 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-a15af23b35384ca100839b4d0845758ac7855628c3d803946a8899f6425c0d973</citedby><cites>FETCH-LOGICAL-c405t-a15af23b35384ca100839b4d0845758ac7855628c3d803946a8899f6425c0d973</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5744142$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5744142$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24322552$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Rui Kun Mai</creatorcontrib><creatorcontrib>Ling Fu</creatorcontrib><creatorcontrib>Zhao Yang Dong</creatorcontrib><creatorcontrib>Kirby, Brian</creatorcontrib><creatorcontrib>Zhi Qian Bo</creatorcontrib><title>An Adaptive Dynamic Phasor Estimator Considering DC Offset for PMU Applications</title><title>IEEE transactions on power delivery</title><addtitle>TPWRD</addtitle><description>A current signal often exhibits dynamic characteristics and contains decaying dc components when an earth fault occurs under power oscillations. In this paper, a dynamic phasor estimator for fault current (DPEFC) is proposed to remove the phasor-estimation errors caused by dynamic characteristics and decaying dc components. The proposed DPEEC estimates dynamic characteristics and decaying dc components accurately by an iterative procedure. It can also eliminate the impacts on phasor estimation by reassigning estimations from discrete Fourier transform with the knowledge of the fundamental phasor and the dc components. The performance of the proposed DPEFC is evaluated by computer-simulated signals and EMTDC-generated signals. The results indicate that DPEFC can achieve accurate phasor estimation of fault current in the presence of dynamic characteristics and decaying dc components with a minimal increase of computational cost which meets the requirements of the application in phasor measurement units.</description><subject>Applied sciences</subject><subject>Computational efficiency</subject><subject>Decay</subject><subject>Decaying dc components</subject><subject>Direct current</subject><subject>discrete Fourier transform (DFT)</subject><subject>Discrete Fourier transforms</subject><subject>Disturbances. Regulation. Protection</subject><subject>Dynamic characteristics</subject><subject>Dynamics</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Estimation</subject><subject>Estimators</subject><subject>Exact sciences and technology</subject><subject>fault current</subject><subject>Fault currents</subject><subject>Faults</subject><subject>Heuristic algorithms</subject><subject>Operation. Load control. Reliability</subject><subject>phasor estimation</subject><subject>Phasor measurement units</subject><subject>phasor measurement units (PMUs)</subject><subject>Phasors</subject><subject>Power networks and lines</subject><subject>Power system dynamics</subject><subject>Studies</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1LAzEQhoMoWKt_QC-LIJ62Tr52k2Np6wcoLdLiMaTZrKZsd9dkK_Tfm9rSg6cZmGfed-ZF6BrDAGOQD_PZx_t4QADjAcFYUspOUC_WPGUExCnqgRA8FTLPz9FFCCsAYCChh6bDOhkWuu3cj03G21qvnUlmXzo0PpmEzq11F7tRUwdXWO_qz2Q8SqZlGWyXlHEye1skw7atnNGdi9QlOit1FezVofbR4nEyHz2nr9Onl9HwNTUMeJdqzHVJ6JJyKpjRGEBQuWQFCMZzLrTJBecZEYYWAqhkmRZCyjJjhBsoZE776H6v2_rme2NDp9YuGFtVurbNJigJOONYChnJ23_kqtn4Oh6nRB7dMWNZhMgeMr4JwdtStT7-7rcKg9olrP4SVruE1SHhuHR3UNbB6Kr0ujYuHDcJo4RwTiJ3s-ectfY45jmL3oT-AluOgXM</recordid><startdate>20110701</startdate><enddate>20110701</enddate><creator>Rui Kun Mai</creator><creator>Ling Fu</creator><creator>Zhao Yang Dong</creator><creator>Kirby, Brian</creator><creator>Zhi Qian Bo</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Regulation. Protection</topic><topic>Dynamic characteristics</topic><topic>Dynamics</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Estimation</topic><topic>Estimators</topic><topic>Exact sciences and technology</topic><topic>fault current</topic><topic>Fault currents</topic><topic>Faults</topic><topic>Heuristic algorithms</topic><topic>Operation. Load control. Reliability</topic><topic>phasor estimation</topic><topic>Phasor measurement units</topic><topic>phasor measurement units (PMUs)</topic><topic>Phasors</topic><topic>Power networks and lines</topic><topic>Power system dynamics</topic><topic>Studies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rui Kun Mai</creatorcontrib><creatorcontrib>Ling Fu</creatorcontrib><creatorcontrib>Zhao Yang Dong</creatorcontrib><creatorcontrib>Kirby, Brian</creatorcontrib><creatorcontrib>Zhi Qian Bo</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><jtitle>IEEE transactions on power delivery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Rui Kun Mai</au><au>Ling Fu</au><au>Zhao Yang Dong</au><au>Kirby, Brian</au><au>Zhi Qian Bo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Adaptive Dynamic Phasor Estimator Considering DC Offset for PMU Applications</atitle><jtitle>IEEE transactions on power delivery</jtitle><stitle>TPWRD</stitle><date>2011-07-01</date><risdate>2011</risdate><volume>26</volume><issue>3</issue><spage>1744</spage><epage>1754</epage><pages>1744-1754</pages><issn>0885-8977</issn><eissn>1937-4208</eissn><coden>ITPDE5</coden><abstract>A current signal often exhibits dynamic characteristics and contains decaying dc components when an earth fault occurs under power oscillations. In this paper, a dynamic phasor estimator for fault current (DPEFC) is proposed to remove the phasor-estimation errors caused by dynamic characteristics and decaying dc components. The proposed DPEEC estimates dynamic characteristics and decaying dc components accurately by an iterative procedure. It can also eliminate the impacts on phasor estimation by reassigning estimations from discrete Fourier transform with the knowledge of the fundamental phasor and the dc components. The performance of the proposed DPEFC is evaluated by computer-simulated signals and EMTDC-generated signals. The results indicate that DPEFC can achieve accurate phasor estimation of fault current in the presence of dynamic characteristics and decaying dc components with a minimal increase of computational cost which meets the requirements of the application in phasor measurement units.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TPWRD.2011.2119334</doi><tpages>11</tpages></addata></record> |
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| subjects | Applied sciences Computational efficiency Decay Decaying dc components Direct current discrete Fourier transform (DFT) Discrete Fourier transforms Disturbances. Regulation. Protection Dynamic characteristics Dynamics Electrical engineering. Electrical power engineering Electrical power engineering Estimation Estimators Exact sciences and technology fault current Fault currents Faults Heuristic algorithms Operation. Load control. Reliability phasor estimation Phasor measurement units phasor measurement units (PMUs) Phasors Power networks and lines Power system dynamics Studies |
| title | An Adaptive Dynamic Phasor Estimator Considering DC Offset for PMU Applications |
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