Incipient Fault Identification-Based Protection for a Photovoltaic DC Integration System
In a photovoltaic (PV) DC integration system, a DC line-to-line short-circuit fault will cause all converters to be quickly locked. This can result in the sustained outage of the system. In this study, to address this problem, a protection method based on incipient fault identification is proposed t...
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| Veröffentlicht in: | IEEE transactions on power delivery 2022-06, Vol.37 (3), p.1660-1670 |
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| container_title | IEEE transactions on power delivery |
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| creator | Jia, Ke Shi, Zhiming Wu, Wenqiang Chen, Jinfeng Bi, Tianshu |
| description | In a photovoltaic (PV) DC integration system, a DC line-to-line short-circuit fault will cause all converters to be quickly locked. This can result in the sustained outage of the system. In this study, to address this problem, a protection method based on incipient fault identification is proposed to quickly identify and isolate the faulty branch, and to prevent the incipient fault from developing into a short-circuit fault. By analyzing the frequency characteristics of the incipient fault current, a disturbance injection start criterion is formed. Then, by using the converter to inject small disturbance signals to form obvious fault characteristics, the location and isolation of the faulty area can be achieved in time. The loop simulation results based on real-time digital simulator (RTDS) hardware demonstrate that the proposed method accurately recognizes the incipient fault without affecting the system power quality, and can simultaneously isolate the incipient fault. These factors provide guarantees for the safe and efficient operation of PV DC integration systems. |
| doi_str_mv | 10.1109/TPWRD.2021.3095468 |
| format | Article |
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This can result in the sustained outage of the system. In this study, to address this problem, a protection method based on incipient fault identification is proposed to quickly identify and isolate the faulty branch, and to prevent the incipient fault from developing into a short-circuit fault. By analyzing the frequency characteristics of the incipient fault current, a disturbance injection start criterion is formed. Then, by using the converter to inject small disturbance signals to form obvious fault characteristics, the location and isolation of the faulty area can be achieved in time. The loop simulation results based on real-time digital simulator (RTDS) hardware demonstrate that the proposed method accurately recognizes the incipient fault without affecting the system power quality, and can simultaneously isolate the incipient fault. 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This can result in the sustained outage of the system. In this study, to address this problem, a protection method based on incipient fault identification is proposed to quickly identify and isolate the faulty branch, and to prevent the incipient fault from developing into a short-circuit fault. By analyzing the frequency characteristics of the incipient fault current, a disturbance injection start criterion is formed. Then, by using the converter to inject small disturbance signals to form obvious fault characteristics, the location and isolation of the faulty area can be achieved in time. The loop simulation results based on real-time digital simulator (RTDS) hardware demonstrate that the proposed method accurately recognizes the incipient fault without affecting the system power quality, and can simultaneously isolate the incipient fault. These factors provide guarantees for the safe and efficient operation of PV DC integration systems.</description><subject>Circuits</subject><subject>Classification algorithms</subject><subject>Converters</subject><subject>Current measurement</subject><subject>disturbance injection</subject><subject>Fault diagnosis</subject><subject>Flexible DC protection</subject><subject>Frequency analysis</subject><subject>Harmonic analysis</subject><subject>incipient fault identification</subject><subject>Manganese</subject><subject>Photovoltaic cells</subject><subject>Resistance</subject><subject>Short circuits</subject><subject>Switches</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LAzEQhoMoWKt_QC8Bz1sn2c1mc9TWaqFg0YreQjY7q1vaTU1Sof_e7Qee5mV4nxl4CLlmMGAM1N189vE6GnDgbJCCEllenJAeU6lMMg7FKelBUYikUFKek4sQFgCQgYIe-Zy0tlk32EY6NptlpJOqy03dWBMb1yYPJmBFZ95FtLsFrZ2nhs6-XXS_bhlNY-loSCdtxC-_R-jbNkRcXZKz2iwDXh1nn7yPH-fD52T68jQZ3k8TyxnExBrgAEoiY6hq4KaUIrNKVKWpKlC5KiXaOleAWSpUYZFzTJkwlosyL5CnfXJ7uLv27meDIeqF2_i2e6l5niuWM8ZE1-KHlvUuBI-1XvtmZfxWM9A7g3pvUO8M6qPBDro5QA0i_gMqk5Jxkf4BSqNtYA</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Jia, Ke</creator><creator>Shi, Zhiming</creator><creator>Wu, Wenqiang</creator><creator>Chen, Jinfeng</creator><creator>Bi, Tianshu</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>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-9921-1961</orcidid><orcidid>https://orcid.org/0000-0002-0961-9892</orcidid><orcidid>https://orcid.org/0000-0002-3555-9045</orcidid><orcidid>https://orcid.org/0000-0001-9140-1050</orcidid></search><sort><creationdate>20220601</creationdate><title>Incipient Fault Identification-Based Protection for a Photovoltaic DC Integration System</title><author>Jia, Ke ; Shi, Zhiming ; Wu, Wenqiang ; Chen, Jinfeng ; Bi, Tianshu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c210t-ca020097e11e9f02ab754c95dbadd0969b7ecf690e43598ce22e315ac25b68e23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Circuits</topic><topic>Classification algorithms</topic><topic>Converters</topic><topic>Current measurement</topic><topic>disturbance injection</topic><topic>Fault diagnosis</topic><topic>Flexible DC protection</topic><topic>Frequency analysis</topic><topic>Harmonic analysis</topic><topic>incipient fault identification</topic><topic>Manganese</topic><topic>Photovoltaic cells</topic><topic>Resistance</topic><topic>Short circuits</topic><topic>Switches</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jia, Ke</creatorcontrib><creatorcontrib>Shi, Zhiming</creatorcontrib><creatorcontrib>Wu, Wenqiang</creatorcontrib><creatorcontrib>Chen, Jinfeng</creatorcontrib><creatorcontrib>Bi, Tianshu</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>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><jtitle>IEEE transactions on power delivery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Jia, Ke</au><au>Shi, Zhiming</au><au>Wu, Wenqiang</au><au>Chen, Jinfeng</au><au>Bi, Tianshu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Incipient Fault Identification-Based Protection for a Photovoltaic DC Integration System</atitle><jtitle>IEEE transactions on power delivery</jtitle><stitle>TPWRD</stitle><date>2022-06-01</date><risdate>2022</risdate><volume>37</volume><issue>3</issue><spage>1660</spage><epage>1670</epage><pages>1660-1670</pages><issn>0885-8977</issn><eissn>1937-4208</eissn><coden>ITPDE5</coden><abstract>In a photovoltaic (PV) DC integration system, a DC line-to-line short-circuit fault will cause all converters to be quickly locked. This can result in the sustained outage of the system. In this study, to address this problem, a protection method based on incipient fault identification is proposed to quickly identify and isolate the faulty branch, and to prevent the incipient fault from developing into a short-circuit fault. By analyzing the frequency characteristics of the incipient fault current, a disturbance injection start criterion is formed. Then, by using the converter to inject small disturbance signals to form obvious fault characteristics, the location and isolation of the faulty area can be achieved in time. The loop simulation results based on real-time digital simulator (RTDS) hardware demonstrate that the proposed method accurately recognizes the incipient fault without affecting the system power quality, and can simultaneously isolate the incipient fault. These factors provide guarantees for the safe and efficient operation of PV DC integration systems.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPWRD.2021.3095468</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-9921-1961</orcidid><orcidid>https://orcid.org/0000-0002-0961-9892</orcidid><orcidid>https://orcid.org/0000-0002-3555-9045</orcidid><orcidid>https://orcid.org/0000-0001-9140-1050</orcidid></addata></record> |
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| subjects | Circuits Classification algorithms Converters Current measurement disturbance injection Fault diagnosis Flexible DC protection Frequency analysis Harmonic analysis incipient fault identification Manganese Photovoltaic cells Resistance Short circuits Switches |
| title | Incipient Fault Identification-Based Protection for a Photovoltaic DC Integration System |
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