Improved Space Vector Modulation of Quasi Z-Source Inverter to Suppress DC-Link Voltage Sag
The three traditional strategies ZSVM1, ZSVM2, and ZSVM6 have been commonly used to control the quasi Z-source inverter (qZSI). However, there is a serious problem that the dc-link voltage of the qZSI drops under light load, leading to the distortion of the output voltage and current of the inverter...
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| creator | He, Yuyao Xu, Yuhao Chen, Jinping |
| description | The three traditional strategies ZSVM1, ZSVM2, and ZSVM6 have been commonly used to control the quasi Z-source inverter (qZSI). However, there is a serious problem that the dc-link voltage of the qZSI drops under light load, leading to the distortion of the output voltage and current of the inverter. The peak dc-link voltage also becomes much higher than its reference value, endangering the safety of the inverter and load. This paper proposes an improved SVM, namely M-ZSVM1, to suppress the dc-link voltage sag under a light load. Through analyzing the reason, the harm, and the influence factors of the dc-link voltage sag, the diode current interruption is seen as the cause of the dc-link voltage sag. Therefore, an asymmetric shoot-through state distribution method is presented to achieve the minimum current ripple, which can increase the diode current. The qZSI can work properly without the dc-link voltage sag under wide load range, improving the safety and reliability of the qZSI. Moreover, other improved ZSI topologies can also be controlled by the proposed strategy to suppress the dc-link voltage sag. |
| doi_str_mv | 10.1109/ACCESS.2019.2917765 |
| format | Article |
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However, there is a serious problem that the dc-link voltage of the qZSI drops under light load, leading to the distortion of the output voltage and current of the inverter. The peak dc-link voltage also becomes much higher than its reference value, endangering the safety of the inverter and load. This paper proposes an improved SVM, namely M-ZSVM1, to suppress the dc-link voltage sag under a light load. Through analyzing the reason, the harm, and the influence factors of the dc-link voltage sag, the diode current interruption is seen as the cause of the dc-link voltage sag. Therefore, an asymmetric shoot-through state distribution method is presented to achieve the minimum current ripple, which can increase the diode current. The qZSI can work properly without the dc-link voltage sag under wide load range, improving the safety and reliability of the qZSI. Moreover, other improved ZSI topologies can also be controlled by the proposed strategy to suppress the dc-link voltage sag.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2019.2917765</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Capacitors ; dc-link voltage sag ; Direct current ; Inductors ; Inverters ; Modulation ; Power quality ; Quasi Z-source inverter ; Safety ; Skewed distributions ; Space vector modulation ; Support vector machines ; Switches ; Topology ; Voltage ; Voltage sags</subject><ispartof>IEEE access, 2019, Vol.7, p.66689-66702</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-75ad522ce91c24a7b35dcb5bc2048bc3b86359cf368e60d68d06fc7b5c2485ae3</citedby><cites>FETCH-LOGICAL-c408t-75ad522ce91c24a7b35dcb5bc2048bc3b86359cf368e60d68d06fc7b5c2485ae3</cites><orcidid>0000-0001-7225-9706</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8718280$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,2102,4024,27633,27923,27924,27925,54933</link.rule.ids></links><search><creatorcontrib>He, Yuyao</creatorcontrib><creatorcontrib>Xu, Yuhao</creatorcontrib><creatorcontrib>Chen, Jinping</creatorcontrib><title>Improved Space Vector Modulation of Quasi Z-Source Inverter to Suppress DC-Link Voltage Sag</title><title>IEEE access</title><addtitle>Access</addtitle><description>The three traditional strategies ZSVM1, ZSVM2, and ZSVM6 have been commonly used to control the quasi Z-source inverter (qZSI). However, there is a serious problem that the dc-link voltage of the qZSI drops under light load, leading to the distortion of the output voltage and current of the inverter. The peak dc-link voltage also becomes much higher than its reference value, endangering the safety of the inverter and load. This paper proposes an improved SVM, namely M-ZSVM1, to suppress the dc-link voltage sag under a light load. Through analyzing the reason, the harm, and the influence factors of the dc-link voltage sag, the diode current interruption is seen as the cause of the dc-link voltage sag. Therefore, an asymmetric shoot-through state distribution method is presented to achieve the minimum current ripple, which can increase the diode current. The qZSI can work properly without the dc-link voltage sag under wide load range, improving the safety and reliability of the qZSI. Moreover, other improved ZSI topologies can also be controlled by the proposed strategy to suppress the dc-link voltage sag.</description><subject>Capacitors</subject><subject>dc-link voltage sag</subject><subject>Direct current</subject><subject>Inductors</subject><subject>Inverters</subject><subject>Modulation</subject><subject>Power quality</subject><subject>Quasi Z-source inverter</subject><subject>Safety</subject><subject>Skewed distributions</subject><subject>Space vector modulation</subject><subject>Support vector machines</subject><subject>Switches</subject><subject>Topology</subject><subject>Voltage</subject><subject>Voltage sags</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUclKxEAQDaKgqF_gpcFzxl7S21HiNjAiEvWgh6bTqQwZx-nYnQz49_YYEetSRfHeq-Vl2RnBM0Kwvrgsy-uqmlFM9IxqIqXge9kRJULnjDOx_68-zE5jXOEUKrW4PMre5h998FtoUNVbB-gF3OADuvfNuLZD5zfIt-hxtLFDr3nlx5Aw880WwgABDR5VY98HiBFdlfmi27yjF78e7BJQZZcn2UFr1xFOf_Nx9nxz_VTe5YuH23l5uchdgdWQS24bTqkDTRwtrKwZb1zNa0dxoWrHaiUY165lQoHAjVANFq2TNU9oxS2w42w-6Tberkwfug8bvoy3nflp-LA0NgydW4PRrIV0Oqi6qAvbak2J1gzS75iQVu20ziet9JXPEeJgVunoTVrf0IJzQQWXRUKxCeWCjzFA-zeVYLMzxUymmJ0p5teUxDqbWB0A_DGUJIoqzL4BEWSHEA</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>He, Yuyao</creator><creator>Xu, Yuhao</creator><creator>Chen, Jinping</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>ESBDL</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-7225-9706</orcidid></search><sort><creationdate>2019</creationdate><title>Improved Space Vector Modulation of Quasi Z-Source Inverter to Suppress DC-Link Voltage Sag</title><author>He, Yuyao ; Xu, Yuhao ; Chen, Jinping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-75ad522ce91c24a7b35dcb5bc2048bc3b86359cf368e60d68d06fc7b5c2485ae3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Capacitors</topic><topic>dc-link voltage sag</topic><topic>Direct current</topic><topic>Inductors</topic><topic>Inverters</topic><topic>Modulation</topic><topic>Power quality</topic><topic>Quasi Z-source inverter</topic><topic>Safety</topic><topic>Skewed distributions</topic><topic>Space vector modulation</topic><topic>Support vector machines</topic><topic>Switches</topic><topic>Topology</topic><topic>Voltage</topic><topic>Voltage sags</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, Yuyao</creatorcontrib><creatorcontrib>Xu, Yuhao</creatorcontrib><creatorcontrib>Chen, Jinping</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE Xplore Open Access Journals</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library Online</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>IEEE access</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, Yuyao</au><au>Xu, Yuhao</au><au>Chen, Jinping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved Space Vector Modulation of Quasi Z-Source Inverter to Suppress DC-Link Voltage Sag</atitle><jtitle>IEEE access</jtitle><stitle>Access</stitle><date>2019</date><risdate>2019</risdate><volume>7</volume><spage>66689</spage><epage>66702</epage><pages>66689-66702</pages><issn>2169-3536</issn><eissn>2169-3536</eissn><coden>IAECCG</coden><abstract>The three traditional strategies ZSVM1, ZSVM2, and ZSVM6 have been commonly used to control the quasi Z-source inverter (qZSI). However, there is a serious problem that the dc-link voltage of the qZSI drops under light load, leading to the distortion of the output voltage and current of the inverter. The peak dc-link voltage also becomes much higher than its reference value, endangering the safety of the inverter and load. This paper proposes an improved SVM, namely M-ZSVM1, to suppress the dc-link voltage sag under a light load. Through analyzing the reason, the harm, and the influence factors of the dc-link voltage sag, the diode current interruption is seen as the cause of the dc-link voltage sag. Therefore, an asymmetric shoot-through state distribution method is presented to achieve the minimum current ripple, which can increase the diode current. The qZSI can work properly without the dc-link voltage sag under wide load range, improving the safety and reliability of the qZSI. 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| subjects | Capacitors dc-link voltage sag Direct current Inductors Inverters Modulation Power quality Quasi Z-source inverter Safety Skewed distributions Space vector modulation Support vector machines Switches Topology Voltage Voltage sags |
| title | Improved Space Vector Modulation of Quasi Z-Source Inverter to Suppress DC-Link Voltage Sag |
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