Sampling period online adjusting-based hysteresis current control without band with constant switching frequency
In this paper, a simple digital hysteresis current control (DHCC) with quasi-constant switching frequency (SF) for the current control of a single-phase grid-connected inverter (SPGI) is proposed. The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The prin...
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| Veröffentlicht in: | IEEE transactions on industrial electronics (1982) 2015-01, Vol.62 (1), p.270-277 |
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| container_title | IEEE transactions on industrial electronics (1982) |
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| creator | Wu, Fengjiang Feng, Fan Luo, Linsong Duan, Jiandong Sun, Li |
| description | In this paper, a simple digital hysteresis current control (DHCC) with quasi-constant switching frequency (SF) for the current control of a single-phase grid-connected inverter (SPGI) is proposed. The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The principle of the DHCC with constant sampling period is analyzed, and the distribution of the switching period (SP) corresponding to the phase angle of the grid is derived. The rule of online adjusting the sampling period to fix SF is then determined according to the former theoretical analysis results. Furthermore, the effect of variation of the filter inductor on the SP is analyzed. An online estimation of the filter inductor based on the linear model of the current increment within one switching cycle is developed to eliminate this kind of effect. The proposed scheme shows the features of simple control, easy implementation in a digital way, robust to the filter inductor, and excellent steady and dynamic performance. The detailed simulation and experimental results verify its accuracy and feasibility. |
| doi_str_mv | 10.1109/TIE.2014.2326992 |
| format | Article |
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The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The principle of the DHCC with constant sampling period is analyzed, and the distribution of the switching period (SP) corresponding to the phase angle of the grid is derived. The rule of online adjusting the sampling period to fix SF is then determined according to the former theoretical analysis results. Furthermore, the effect of variation of the filter inductor on the SP is analyzed. An online estimation of the filter inductor based on the linear model of the current increment within one switching cycle is developed to eliminate this kind of effect. The proposed scheme shows the features of simple control, easy implementation in a digital way, robust to the filter inductor, and excellent steady and dynamic performance. The detailed simulation and experimental results verify its accuracy and feasibility.</description><identifier>ISSN: 0278-0046</identifier><identifier>EISSN: 1557-9948</identifier><identifier>DOI: 10.1109/TIE.2014.2326992</identifier><identifier>CODEN: ITIED6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Adjustment ; Bandwidth ; Constants ; Current control ; Digital ; Electronics ; Estimation ; Hysteresis ; Inductors ; Inverters ; Online ; Sampling ; Switches ; Switching</subject><ispartof>IEEE transactions on industrial electronics (1982), 2015-01, Vol.62 (1), p.270-277</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Jan 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c324t-a9e9eabe5a200a025e70b9e5a0002537a24d82901b1be4758bea6ed9fb34ecb23</citedby><cites>FETCH-LOGICAL-c324t-a9e9eabe5a200a025e70b9e5a0002537a24d82901b1be4758bea6ed9fb34ecb23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6822592$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6822592$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Wu, Fengjiang</creatorcontrib><creatorcontrib>Feng, Fan</creatorcontrib><creatorcontrib>Luo, Linsong</creatorcontrib><creatorcontrib>Duan, Jiandong</creatorcontrib><creatorcontrib>Sun, Li</creatorcontrib><title>Sampling period online adjusting-based hysteresis current control without band with constant switching frequency</title><title>IEEE transactions on industrial electronics (1982)</title><addtitle>TIE</addtitle><description>In this paper, a simple digital hysteresis current control (DHCC) with quasi-constant switching frequency (SF) for the current control of a single-phase grid-connected inverter (SPGI) is proposed. The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The principle of the DHCC with constant sampling period is analyzed, and the distribution of the switching period (SP) corresponding to the phase angle of the grid is derived. The rule of online adjusting the sampling period to fix SF is then determined according to the former theoretical analysis results. Furthermore, the effect of variation of the filter inductor on the SP is analyzed. An online estimation of the filter inductor based on the linear model of the current increment within one switching cycle is developed to eliminate this kind of effect. The proposed scheme shows the features of simple control, easy implementation in a digital way, robust to the filter inductor, and excellent steady and dynamic performance. The detailed simulation and experimental results verify its accuracy and feasibility.</description><subject>Adjustment</subject><subject>Bandwidth</subject><subject>Constants</subject><subject>Current control</subject><subject>Digital</subject><subject>Electronics</subject><subject>Estimation</subject><subject>Hysteresis</subject><subject>Inductors</subject><subject>Inverters</subject><subject>Online</subject><subject>Sampling</subject><subject>Switches</subject><subject>Switching</subject><issn>0278-0046</issn><issn>1557-9948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkcFLwzAUh4MoOKd3wUvBi5fOlzRpm6OMqYOBB-c5JO2b6-iamqTI_ntTNzx4enzvfe8l8CPklsKMUpCP6-VixoDyGctYLiU7IxMqRJFKyctzMgFWlCkAzy_Jlfc7iKagYkL6d73v26b7THp0ja0T20XCRNe7wYfYT432WCfbgw_o0Dc-qQbnsAtJZbvgbJt8N2Frh5AY3dW_ME580FHxEavteH3j8GvArjpck4uNbj3enOqUfDwv1vPXdPX2spw_rdIqYzykWqJEbVBoBqCBCSzAyIgAEbJCM16XTAI11CAvRGlQ51jLjck4VoZlU_JwvNs7G1_2Qe0bX2Hb6g7t4BXNBeVAZc6jev9P3dnBdfF30cpkBjIvZbTgaFXOeu9wo3rX7LU7KApqjEDFCNQYgTpFEFfujisNIv7pecmYiNMfjnyEzA</recordid><startdate>201501</startdate><enddate>201501</enddate><creator>Wu, Fengjiang</creator><creator>Feng, Fan</creator><creator>Luo, Linsong</creator><creator>Duan, Jiandong</creator><creator>Sun, Li</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The hysteresis band is cancelled, and the SF is fixed by online adjusting the sampling period. The principle of the DHCC with constant sampling period is analyzed, and the distribution of the switching period (SP) corresponding to the phase angle of the grid is derived. The rule of online adjusting the sampling period to fix SF is then determined according to the former theoretical analysis results. Furthermore, the effect of variation of the filter inductor on the SP is analyzed. An online estimation of the filter inductor based on the linear model of the current increment within one switching cycle is developed to eliminate this kind of effect. The proposed scheme shows the features of simple control, easy implementation in a digital way, robust to the filter inductor, and excellent steady and dynamic performance. The detailed simulation and experimental results verify its accuracy and feasibility.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TIE.2014.2326992</doi><tpages>8</tpages></addata></record> |
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| subjects | Adjustment Bandwidth Constants Current control Digital Electronics Estimation Hysteresis Inductors Inverters Online Sampling Switches Switching |
| title | Sampling period online adjusting-based hysteresis current control without band with constant switching frequency |
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