Feedforward Modulation for the Neutral-Point-Clamped Converter with Confined Capacitor Voltage Ripples and Reduced Switching Power Losses

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dc.contributor.authorBeniwal, Neha
dc.contributor.authorPou, Josep
dc.contributor.authorCeballos, Salvador
dc.contributor.authorTownsend, Christopher David
dc.contributor.authorKonstantinou, Georgios
dc.contributor.authorTafti, Hossein Dehghani
dc.contributor.authorFarivar, Glen Ghias
dc.contributor.institutionPOWER ELECTRONICS AND SYSTEM EQUIPMENT
dc.date.accessioned2024-07-24T12:12:16Z
dc.date.available2024-07-24T12:12:16Z
dc.date.issued2020-04
dc.descriptionPublisher Copyright: © 1986-2012 IEEE.
dc.description.abstractThis article presents a new modulation technique with feedforward compensation for the three-phase three-level neutral-point-clamped converter. With the proposed technique, the capacitor voltage ripples are allowed to vary within certain limits. This enables an optimized design of the converter since the maximum capacitor voltages are predefined. Furthermore, the proposed modulation technique is able to reduce switching power losses compared to modulation techniques that eliminate capacitor voltage ripples completely. The proposed technique is therefore a tradeoff solution between aforementioned techniques and traditional modulation techniques where the capacitor voltage ripples are not limited. In the proposed technique, if the capacitor voltages are within the tolerable specified range, all the phases switch in two consecutive voltage levels in steady state. When the capacitor voltages go beyond the specified limits, one of the three phases is chosen to switch in three levels to inject an appropriate neutral point current for capacitor voltage balance. As the capacitor voltages are allowed to oscillate, the modulation technique is provided with feedforward compensation to avoid producing low-frequency distortion on the output voltages of the converter. Experimental results are presented operating under different loading conditions.en
dc.description.sponsorshipManuscript received April 17, 2019; revised July 13, 2019; accepted August 23, 2019. Date of publication September 8, 2019; date of current version January 10, 2020. This work was supported by the Singapore Ministry of Education Academic Research Fund Tier 1 under Grant 2017-T1-001-213 (RG 90/17). It was also partially supported by the Basque Government within the Research Program ELKARTEK under the Project ENSOL (KK-2018/00040). Recommended for publication by Associate Editor D. O. Neacsu. (Corresponding author: Neha Beniwal.) N. Beniwal is with the Energy Research Institute, Interdisciplinary Graduate School, Nanyang Technological University, 639798 Singapore (e-mail: nsingh341@gmail.com).
dc.description.statusPeer reviewed
dc.format.extent13
dc.identifier.citationBeniwal , N , Pou , J , Ceballos , S , Townsend , C D , Konstantinou , G , Tafti , H D & Farivar , G G 2020 , ' Feedforward Modulation for the Neutral-Point-Clamped Converter with Confined Capacitor Voltage Ripples and Reduced Switching Power Losses ' , IEEE Transactions on Power Electronics , vol. 35 , no. 4 , 8827312 , pp. 4426-4438 . https://doi.org/10.1109/TPEL.2019.2940077
dc.identifier.doi10.1109/TPEL.2019.2940077
dc.identifier.issn0885-8993
dc.identifier.urihttps://hdl.handle.net/11556/4265
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85078290566&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Power Electronics
dc.relation.projectIDMinistry of Education - Singapore, MOE, RG 90/17-2017-T1-001-213
dc.relation.projectIDEusko Jaurlaritza, KK-2018/00040
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsCarrier-based pulsewidth modulation (CBPWM)
dc.subject.keywordsfeedforward compensation
dc.subject.keywordsneutral-point-clamped (NPC) converter
dc.subject.keywordsvoltage imbalance
dc.subject.keywordsElectrical and Electronic Engineering
dc.titleFeedforward Modulation for the Neutral-Point-Clamped Converter with Confined Capacitor Voltage Ripples and Reduced Switching Power Lossesen
dc.typejournal article
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