Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System
For the grid-connected photovoltaic inverters, the switching-frequency common-mode voltage brings the leakage current, which should be eliminated. So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have th...
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| Veröffentlicht in: | Electronics (Basel) 2019-11, Vol.8 (11), p.1296 |
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| creator | Li, Xiangli Wang, Na San, Guocheng Guo, Xiaoqiang |
| description | For the grid-connected photovoltaic inverters, the switching-frequency common-mode voltage brings the leakage current, which should be eliminated. So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution. |
| doi_str_mv | 10.3390/electronics8111296 |
| format | Article |
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So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution.</description><identifier>ISSN: 2079-9292</identifier><identifier>EISSN: 2079-9292</identifier><identifier>DOI: 10.3390/electronics8111296</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Alternating current ; Clamping ; Current sources ; Electric potential ; Inverters ; Leakage current ; Performance assessment ; Photovoltaic cells ; Switches ; Switching ; Voltage</subject><ispartof>Electronics (Basel), 2019-11, Vol.8 (11), p.1296</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). 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So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution.</description><subject>Alternating current</subject><subject>Clamping</subject><subject>Current sources</subject><subject>Electric potential</subject><subject>Inverters</subject><subject>Leakage current</subject><subject>Performance assessment</subject><subject>Photovoltaic cells</subject><subject>Switches</subject><subject>Switching</subject><subject>Voltage</subject><issn>2079-9292</issn><issn>2079-9292</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNplkE1LAzEQhoMoWGr_gKeA59XMZrubHMuitVCo2OJ1ySYT2domNdkV-u9NaQ-Cc5mBeZ_5eAm5B_bIuWRPuEPdB-86HQUA5LK8IqOcVTKTucyv_9S3ZBLjlqWQwAVnI6LqIQR0PV37IWikszpbdwZpvVP7Axq6cD8YegzU-kCXqL7UZ2pemHc0g-4772jn6Dx0Jqu9c-mYBL590PUx9ri_IzdW7SJOLnlMNi_Pm_o1W67mi3q2zDQH2WeVgAJaa9hUMW3LSuhWSBBcG96CKbRtmWWGlQyhUEKr9oQZgQWYUmvgY_JwHnsI_nvA2Dfb9JFLG5t8WogilwKqpMrPKh18jAFtcwjdXoVjA6w5mdn8N5P_Ak1VaxA</recordid><startdate>20191101</startdate><enddate>20191101</enddate><creator>Li, Xiangli</creator><creator>Wang, Na</creator><creator>San, Guocheng</creator><creator>Guo, Xiaoqiang</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20191101</creationdate><title>Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System</title><author>Li, Xiangli ; Wang, Na ; San, Guocheng ; Guo, Xiaoqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-78141bfd05a0cf678cb89183cd3b1d4cfb0f0d060e14a8cabc319d8e41d6cc13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Alternating current</topic><topic>Clamping</topic><topic>Current sources</topic><topic>Electric potential</topic><topic>Inverters</topic><topic>Leakage current</topic><topic>Performance assessment</topic><topic>Photovoltaic cells</topic><topic>Switches</topic><topic>Switching</topic><topic>Voltage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xiangli</creatorcontrib><creatorcontrib>Wang, Na</creatorcontrib><creatorcontrib>San, Guocheng</creatorcontrib><creatorcontrib>Guo, Xiaoqiang</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Electronics (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Xiangli</au><au>Wang, Na</au><au>San, Guocheng</au><au>Guo, Xiaoqiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System</atitle><jtitle>Electronics (Basel)</jtitle><date>2019-11-01</date><risdate>2019</risdate><volume>8</volume><issue>11</issue><spage>1296</spage><pages>1296-</pages><issn>2079-9292</issn><eissn>2079-9292</eissn><abstract>For the grid-connected photovoltaic inverters, the switching-frequency common-mode voltage brings the leakage current, which should be eliminated. So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/electronics8111296</doi><oa>free_for_read</oa></addata></record> |
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| ispartof | Electronics (Basel), 2019-11, Vol.8 (11), p.1296 |
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| language | eng |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Alternating current Clamping Current sources Electric potential Inverters Leakage current Performance assessment Photovoltaic cells Switches Switching Voltage |
| title | Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System |
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