A Novel Suppression Method for Grounding Transformer Against Earth Current From Urban Rail Transit
Earth current generated by the operation of urban rail transit can enter into the neutral point of grounding transformer, which will result in the deterioration of transformer operation performance and cause electrical safety problems. In this article, the neutral current for 220 kV transformers has...
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| Veröffentlicht in: | IEEE transactions on industrial electronics (1982) 2021-12, Vol.68 (12), p.11651-11662 |
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| container_title | IEEE transactions on industrial electronics (1982) |
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| creator | Zhu, Jinli Mao, Chengxiong Wang, Zhaoyuan Chen, Jinfan Wang, Dan Luan, Le Qiao, Yajun Wang, Haijing |
| description | Earth current generated by the operation of urban rail transit can enter into the neutral point of grounding transformer, which will result in the deterioration of transformer operation performance and cause electrical safety problems. In this article, the neutral current for 220 kV transformers has been measured in the real power system, the characteristics of dc and harmonic current are analyzed, and a novel suppression method for the dc and harmonic current simultaneously combining an active converter with a dc blocking capacitor is proposed, which solves not only the traditional dc bias problem but also the intrusion of the harmonic current from urban rail transit. The active converter is designed to compensate harmonic voltage to suppress harmonic current, and the capacitor provides blocking for the dc current. The protection scheme in case of the high fault current of the neutral point is presented. The improved control method is designed to control the neutral current and adjust the fundamental impedance for the requirements of relay protection. The effectiveness of the proposed method is verified by the digital simulations and the laboratory experiments based on the field working conditions, and the results demonstrate the satisfying performances. |
| doi_str_mv | 10.1109/TIE.2020.3047044 |
| format | Article |
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In this article, the neutral current for 220 kV transformers has been measured in the real power system, the characteristics of dc and harmonic current are analyzed, and a novel suppression method for the dc and harmonic current simultaneously combining an active converter with a dc blocking capacitor is proposed, which solves not only the traditional dc bias problem but also the intrusion of the harmonic current from urban rail transit. The active converter is designed to compensate harmonic voltage to suppress harmonic current, and the capacitor provides blocking for the dc current. The protection scheme in case of the high fault current of the neutral point is presented. The improved control method is designed to control the neutral current and adjust the fundamental impedance for the requirements of relay protection. The effectiveness of the proposed method is verified by the digital simulations and the laboratory experiments based on the field working conditions, and the results demonstrate the satisfying performances.</description><identifier>ISSN: 0278-0046</identifier><identifier>EISSN: 1557-9948</identifier><identifier>DOI: 10.1109/TIE.2020.3047044</identifier><identifier>CODEN: ITIED6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Active converter ; blocking capacitor ; Capacitors ; Control methods ; Converters ; Current measurement ; dc and harmonic ; Earth ; earth current ; Electric power systems ; Electrical grounding ; Electrical safety ; Grounding ; grounding transformer ; Harmonic analysis ; neutral current ; Neutral currents ; Power harmonic filters ; Rails ; suppression system ; Transformers ; Urban rail ; urban rail transit (URT)</subject><ispartof>IEEE transactions on industrial electronics (1982), 2021-12, Vol.68 (12), p.11651-11662</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-ebc4b3378ccb9c80c690863519e7d2d8e3b624e48b1f9832616b3082e9fa3af3</citedby><cites>FETCH-LOGICAL-c291t-ebc4b3378ccb9c80c690863519e7d2d8e3b624e48b1f9832616b3082e9fa3af3</cites><orcidid>0000-0002-4433-8607 ; 0000-0003-3954-6900 ; 0000-0002-8230-6243</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9311809$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9311809$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zhu, Jinli</creatorcontrib><creatorcontrib>Mao, Chengxiong</creatorcontrib><creatorcontrib>Wang, Zhaoyuan</creatorcontrib><creatorcontrib>Chen, Jinfan</creatorcontrib><creatorcontrib>Wang, Dan</creatorcontrib><creatorcontrib>Luan, Le</creatorcontrib><creatorcontrib>Qiao, Yajun</creatorcontrib><creatorcontrib>Wang, Haijing</creatorcontrib><title>A Novel Suppression Method for Grounding Transformer Against Earth Current From Urban Rail Transit</title><title>IEEE transactions on industrial electronics (1982)</title><addtitle>TIE</addtitle><description>Earth current generated by the operation of urban rail transit can enter into the neutral point of grounding transformer, which will result in the deterioration of transformer operation performance and cause electrical safety problems. In this article, the neutral current for 220 kV transformers has been measured in the real power system, the characteristics of dc and harmonic current are analyzed, and a novel suppression method for the dc and harmonic current simultaneously combining an active converter with a dc blocking capacitor is proposed, which solves not only the traditional dc bias problem but also the intrusion of the harmonic current from urban rail transit. The active converter is designed to compensate harmonic voltage to suppress harmonic current, and the capacitor provides blocking for the dc current. The protection scheme in case of the high fault current of the neutral point is presented. The improved control method is designed to control the neutral current and adjust the fundamental impedance for the requirements of relay protection. The effectiveness of the proposed method is verified by the digital simulations and the laboratory experiments based on the field working conditions, and the results demonstrate the satisfying performances.</description><subject>Active converter</subject><subject>blocking capacitor</subject><subject>Capacitors</subject><subject>Control methods</subject><subject>Converters</subject><subject>Current measurement</subject><subject>dc and harmonic</subject><subject>Earth</subject><subject>earth current</subject><subject>Electric power systems</subject><subject>Electrical grounding</subject><subject>Electrical safety</subject><subject>Grounding</subject><subject>grounding transformer</subject><subject>Harmonic analysis</subject><subject>neutral current</subject><subject>Neutral currents</subject><subject>Power harmonic filters</subject><subject>Rails</subject><subject>suppression system</subject><subject>Transformers</subject><subject>Urban rail</subject><subject>urban rail transit (URT)</subject><issn>0278-0046</issn><issn>1557-9948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kM9LwzAUgIMoOKd3wUvAc-fLj7bJcYw5B1NB6zkkbbp1bElNWsH_3o4OTw8e3_cefAjdE5gRAvKpWC9nFCjMGPAcOL9AE5KmeSIlF5doAjQXCQDPrtFNjHsAwlOSTpCZ4zf_Yw_4s2_bYGNsvMOvttv5Ctc-4FXwvasat8VF0C4Oq6MNeL7VjYsdXurQ7fCiD8G6Dj8Hf8RfwWiHP3RzGI2mu0VXtT5Ee3eeU1Q8L4vFS7J5X60X801SUkm6xJqSG8ZyUZZGlgLKTILIWEqkzStaCctMRrnlwpBaCkYzkhkGglpZa6ZrNkWP49k2-O_exk7tfR_c8FHRNBOQccHTgYKRKoOPMdhataE56vCrCKhTSDWEVKeQ6hxyUB5GpbHW_uOSESJAsj9ks26x</recordid><startdate>20211201</startdate><enddate>20211201</enddate><creator>Zhu, Jinli</creator><creator>Mao, Chengxiong</creator><creator>Wang, Zhaoyuan</creator><creator>Chen, Jinfan</creator><creator>Wang, Dan</creator><creator>Luan, Le</creator><creator>Qiao, Yajun</creator><creator>Wang, Haijing</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-4433-8607</orcidid><orcidid>https://orcid.org/0000-0003-3954-6900</orcidid><orcidid>https://orcid.org/0000-0002-8230-6243</orcidid></search><sort><creationdate>20211201</creationdate><title>A Novel Suppression Method for Grounding Transformer Against Earth Current From Urban Rail Transit</title><author>Zhu, Jinli ; Mao, Chengxiong ; Wang, Zhaoyuan ; Chen, Jinfan ; Wang, Dan ; Luan, Le ; Qiao, Yajun ; Wang, Haijing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c291t-ebc4b3378ccb9c80c690863519e7d2d8e3b624e48b1f9832616b3082e9fa3af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Active converter</topic><topic>blocking capacitor</topic><topic>Capacitors</topic><topic>Control methods</topic><topic>Converters</topic><topic>Current measurement</topic><topic>dc and harmonic</topic><topic>Earth</topic><topic>earth current</topic><topic>Electric power systems</topic><topic>Electrical grounding</topic><topic>Electrical safety</topic><topic>Grounding</topic><topic>grounding transformer</topic><topic>Harmonic analysis</topic><topic>neutral current</topic><topic>Neutral currents</topic><topic>Power harmonic filters</topic><topic>Rails</topic><topic>suppression system</topic><topic>Transformers</topic><topic>Urban rail</topic><topic>urban rail transit (URT)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhu, Jinli</creatorcontrib><creatorcontrib>Mao, Chengxiong</creatorcontrib><creatorcontrib>Wang, Zhaoyuan</creatorcontrib><creatorcontrib>Chen, Jinfan</creatorcontrib><creatorcontrib>Wang, Dan</creatorcontrib><creatorcontrib>Luan, Le</creatorcontrib><creatorcontrib>Qiao, Yajun</creatorcontrib><creatorcontrib>Wang, Haijing</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>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on industrial electronics (1982)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhu, Jinli</au><au>Mao, Chengxiong</au><au>Wang, Zhaoyuan</au><au>Chen, Jinfan</au><au>Wang, Dan</au><au>Luan, Le</au><au>Qiao, Yajun</au><au>Wang, Haijing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Novel Suppression Method for Grounding Transformer Against Earth Current From Urban Rail Transit</atitle><jtitle>IEEE transactions on industrial electronics (1982)</jtitle><stitle>TIE</stitle><date>2021-12-01</date><risdate>2021</risdate><volume>68</volume><issue>12</issue><spage>11651</spage><epage>11662</epage><pages>11651-11662</pages><issn>0278-0046</issn><eissn>1557-9948</eissn><coden>ITIED6</coden><abstract>Earth current generated by the operation of urban rail transit can enter into the neutral point of grounding transformer, which will result in the deterioration of transformer operation performance and cause electrical safety problems. In this article, the neutral current for 220 kV transformers has been measured in the real power system, the characteristics of dc and harmonic current are analyzed, and a novel suppression method for the dc and harmonic current simultaneously combining an active converter with a dc blocking capacitor is proposed, which solves not only the traditional dc bias problem but also the intrusion of the harmonic current from urban rail transit. The active converter is designed to compensate harmonic voltage to suppress harmonic current, and the capacitor provides blocking for the dc current. The protection scheme in case of the high fault current of the neutral point is presented. The improved control method is designed to control the neutral current and adjust the fundamental impedance for the requirements of relay protection. The effectiveness of the proposed method is verified by the digital simulations and the laboratory experiments based on the field working conditions, and the results demonstrate the satisfying performances.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TIE.2020.3047044</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-4433-8607</orcidid><orcidid>https://orcid.org/0000-0003-3954-6900</orcidid><orcidid>https://orcid.org/0000-0002-8230-6243</orcidid></addata></record> |
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| subjects | Active converter blocking capacitor Capacitors Control methods Converters Current measurement dc and harmonic Earth earth current Electric power systems Electrical grounding Electrical safety Grounding grounding transformer Harmonic analysis neutral current Neutral currents Power harmonic filters Rails suppression system Transformers Urban rail urban rail transit (URT) |
| title | A Novel Suppression Method for Grounding Transformer Against Earth Current From Urban Rail Transit |
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