A Novel Flexible Capacitor Voltage Control Strategy for Variable-Speed Drives With Modular Multilevel Converters
Modular multilevel converter (MMC) is very popular in medium-voltage applications, such as high-voltage direct current transmission, static Var generator, and motor drives. The arm capacitor voltage of MMC is usually constant and the output voltage is adjusted by regulating the pulse width modulatio...
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| Veröffentlicht in: | IEEE transactions on power electronics 2017-01, Vol.32 (1), p.128-141 |
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| creator | Tai, Bingyong Gao, Congzhe Liu, Xiangdong Chen, Zhen |
| description | Modular multilevel converter (MMC) is very popular in medium-voltage applications, such as high-voltage direct current transmission, static Var generator, and motor drives. The arm capacitor voltage of MMC is usually constant and the output voltage is adjusted by regulating the pulse width modulation (PWM) index for switches in previous studies. In this paper, a novel flexible capacitor voltage control strategy for MMC as motor drives was proposed, with which the arm capacitor voltage was controlled flexibly according to the motor speed, by regulating the dc component and ac component of the PWM reference signal, and unsymmetrical control was used for the control of the upper arm and the lower arm in MMC. With the proposed control strategy, the circuit efficiency and the precision of the output voltage of the converter could be improved when the motor speed was low, and di/dt and d v/dt of the motor windings could be decreased. These proposals were implemented on a laboratory prototype, and experiments were carried out. The validity of the control strategy under both steady and dynamic states was verified. |
| doi_str_mv | 10.1109/TPEL.2016.2535463 |
| format | Article |
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The arm capacitor voltage of MMC is usually constant and the output voltage is adjusted by regulating the pulse width modulation (PWM) index for switches in previous studies. In this paper, a novel flexible capacitor voltage control strategy for MMC as motor drives was proposed, with which the arm capacitor voltage was controlled flexibly according to the motor speed, by regulating the dc component and ac component of the PWM reference signal, and unsymmetrical control was used for the control of the upper arm and the lower arm in MMC. With the proposed control strategy, the circuit efficiency and the precision of the output voltage of the converter could be improved when the motor speed was low, and di/dt and d v/dt of the motor windings could be decreased. These proposals were implemented on a laboratory prototype, and experiments were carried out. The validity of the control strategy under both steady and dynamic states was verified.</description><identifier>ISSN: 0885-8993</identifier><identifier>EISSN: 1941-0107</identifier><identifier>DOI: 10.1109/TPEL.2016.2535463</identifier><identifier>CODEN: ITPEE8</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Capacitors ; Carrier phase-shifted modulation ; Circuits ; Coils (windings) ; DC motors ; Direct current ; Electric power transmission ; flexible capacitor voltage control ; Inductors ; modular multilevel converter ; motor drive ; Motor drives ; Pulse duration modulation ; Pulse width modulation ; Reference signals ; Switches ; Topology ; Variable speed drives ; Voltage control</subject><ispartof>IEEE transactions on power electronics, 2017-01, Vol.32 (1), p.128-141</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-c12d02a3bbe245c4c7d898658d70201f09942f2df0d2254e7664883ed5996b183</citedby><cites>FETCH-LOGICAL-c293t-c12d02a3bbe245c4c7d898658d70201f09942f2df0d2254e7664883ed5996b183</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7422109$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7422109$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Tai, Bingyong</creatorcontrib><creatorcontrib>Gao, Congzhe</creatorcontrib><creatorcontrib>Liu, Xiangdong</creatorcontrib><creatorcontrib>Chen, Zhen</creatorcontrib><title>A Novel Flexible Capacitor Voltage Control Strategy for Variable-Speed Drives With Modular Multilevel Converters</title><title>IEEE transactions on power electronics</title><addtitle>TPEL</addtitle><description>Modular multilevel converter (MMC) is very popular in medium-voltage applications, such as high-voltage direct current transmission, static Var generator, and motor drives. The arm capacitor voltage of MMC is usually constant and the output voltage is adjusted by regulating the pulse width modulation (PWM) index for switches in previous studies. In this paper, a novel flexible capacitor voltage control strategy for MMC as motor drives was proposed, with which the arm capacitor voltage was controlled flexibly according to the motor speed, by regulating the dc component and ac component of the PWM reference signal, and unsymmetrical control was used for the control of the upper arm and the lower arm in MMC. With the proposed control strategy, the circuit efficiency and the precision of the output voltage of the converter could be improved when the motor speed was low, and di/dt and d v/dt of the motor windings could be decreased. These proposals were implemented on a laboratory prototype, and experiments were carried out. The validity of the control strategy under both steady and dynamic states was verified.</description><subject>Capacitors</subject><subject>Carrier phase-shifted modulation</subject><subject>Circuits</subject><subject>Coils (windings)</subject><subject>DC motors</subject><subject>Direct current</subject><subject>Electric power transmission</subject><subject>flexible capacitor voltage control</subject><subject>Inductors</subject><subject>modular multilevel converter</subject><subject>motor drive</subject><subject>Motor drives</subject><subject>Pulse duration modulation</subject><subject>Pulse width modulation</subject><subject>Reference signals</subject><subject>Switches</subject><subject>Topology</subject><subject>Variable speed drives</subject><subject>Voltage control</subject><issn>0885-8993</issn><issn>1941-0107</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kN9LwzAQx4MoOKd_gPgS8Lkzv9omj2M6FTYVNvUxZO11dsSlpulw_70pGz4d3H3ue9wHoWtKRpQSdbd8e5iNGKHZiKU8FRk_QQOqBE0IJfkpGhAp00Qqxc_RRdtuCKEiJXSAmjF-cTuweGrht15ZwBPTmKIOzuMPZ4NZx47bBu8sXgRvAqz3uOqHxtcm8smiASjxva930OLPOnzhuSs7azyedzbUFvr0GLEDH8C3l-isMraFq2Mdovfpw3LylMxeH58n41lSMMVDUlBWEmb4agVMpIUo8lIqmaWyzEl8syJKCVaxsiIlY6mAPMuElBzKVKlsRSUfottDbuPdTwdt0BvX-W08qRnNRTTEZBYpeqAK79rWQ6UbX38bv9eU6F6s7sXqXqw-io07N4edGgD--VwwFnn-B7YBdDM</recordid><startdate>201701</startdate><enddate>201701</enddate><creator>Tai, Bingyong</creator><creator>Gao, Congzhe</creator><creator>Liu, Xiangdong</creator><creator>Chen, Zhen</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>JQ2</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>201701</creationdate><title>A Novel Flexible Capacitor Voltage Control Strategy for Variable-Speed Drives With Modular Multilevel Converters</title><author>Tai, Bingyong ; Gao, Congzhe ; Liu, Xiangdong ; Chen, Zhen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-c12d02a3bbe245c4c7d898658d70201f09942f2df0d2254e7664883ed5996b183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Capacitors</topic><topic>Carrier phase-shifted modulation</topic><topic>Circuits</topic><topic>Coils (windings)</topic><topic>DC motors</topic><topic>Direct current</topic><topic>Electric power transmission</topic><topic>flexible capacitor voltage control</topic><topic>Inductors</topic><topic>modular multilevel converter</topic><topic>motor drive</topic><topic>Motor drives</topic><topic>Pulse duration modulation</topic><topic>Pulse width modulation</topic><topic>Reference signals</topic><topic>Switches</topic><topic>Topology</topic><topic>Variable speed drives</topic><topic>Voltage control</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tai, Bingyong</creatorcontrib><creatorcontrib>Gao, Congzhe</creatorcontrib><creatorcontrib>Liu, Xiangdong</creatorcontrib><creatorcontrib>Chen, Zhen</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>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on power electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Tai, Bingyong</au><au>Gao, Congzhe</au><au>Liu, Xiangdong</au><au>Chen, Zhen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Novel Flexible Capacitor Voltage Control Strategy for Variable-Speed Drives With Modular Multilevel Converters</atitle><jtitle>IEEE transactions on power electronics</jtitle><stitle>TPEL</stitle><date>2017-01</date><risdate>2017</risdate><volume>32</volume><issue>1</issue><spage>128</spage><epage>141</epage><pages>128-141</pages><issn>0885-8993</issn><eissn>1941-0107</eissn><coden>ITPEE8</coden><abstract>Modular multilevel converter (MMC) is very popular in medium-voltage applications, such as high-voltage direct current transmission, static Var generator, and motor drives. The arm capacitor voltage of MMC is usually constant and the output voltage is adjusted by regulating the pulse width modulation (PWM) index for switches in previous studies. In this paper, a novel flexible capacitor voltage control strategy for MMC as motor drives was proposed, with which the arm capacitor voltage was controlled flexibly according to the motor speed, by regulating the dc component and ac component of the PWM reference signal, and unsymmetrical control was used for the control of the upper arm and the lower arm in MMC. With the proposed control strategy, the circuit efficiency and the precision of the output voltage of the converter could be improved when the motor speed was low, and di/dt and d v/dt of the motor windings could be decreased. These proposals were implemented on a laboratory prototype, and experiments were carried out. The validity of the control strategy under both steady and dynamic states was verified.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPEL.2016.2535463</doi><tpages>14</tpages></addata></record> |
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| identifier | ISSN: 0885-8993 |
| ispartof | IEEE transactions on power electronics, 2017-01, Vol.32 (1), p.128-141 |
| issn | 0885-8993 1941-0107 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Capacitors Carrier phase-shifted modulation Circuits Coils (windings) DC motors Direct current Electric power transmission flexible capacitor voltage control Inductors modular multilevel converter motor drive Motor drives Pulse duration modulation Pulse width modulation Reference signals Switches Topology Variable speed drives Voltage control |
| title | A Novel Flexible Capacitor Voltage Control Strategy for Variable-Speed Drives With Modular Multilevel Converters |
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