New protection circuit for high-speed switching and start-up of a practical matrix converter

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dc.contributor.authorAndreu, Jon
dc.contributor.authorDe Diego, José Miguel
dc.contributor.authorde Alegria, Iñigo Martinez
dc.contributor.authorKortabarria, Iñego
dc.contributor.authorMartin, José Luis
dc.contributor.authorCeballos, Salvador
dc.contributor.institutionPOWER ELECTRONICS AND SYSTEM EQUIPMENT
dc.date.accessioned2024-07-24T12:14:47Z
dc.date.available2024-07-24T12:14:47Z
dc.date.issued2008
dc.description.abstractThe matrix converter (MC) presents a promising topology that needs to overcome certain barriers (protection systems, durability, the development of converters for real applications, etc.) in order to gain a foothold in the market. Taking into consideration that the great majority of efforts are being oriented toward control algorithms and modulation, this paper focuses on MC hardware. In order to improve the switching speed of the MC and thus obtain signals with less harmonic distortion, several different insulated-gate bipolar transistor (IGBT) excitation circuits are being studied. Here, the appropriate topology is selected for the MC, and a recommended configuration is selected, which reduces the excursion range of the drivers, optimizes the switching speed of the IGBTs, and presents high immunity to common-mode voltages in the drivers. Inadequate driver control can lead to the destruction of the MC due to its low ride-through capability. Moreover, this converter is especially sensitive during start-up, as, at that moment, there are high overcurrents and overvoltages. With the aim of finding a solution for starting up the MC, a circuit is presented (separate from the control software), which ensures correct sequencing of supplies, thus avoiding a short circuit between input phases. Moreover, it detects overcurrent, connection/disconnection, and converter supply faults. Faults cause the circuit to protect the MC by switching off all the IGBT drivers without latency. All this operability is guaranteed even when the supply falls below the threshold specified by the manufacturers for the correct operation of the circuits. All these features are demonstrated with experimental results. Lastly, an analysis is made of the interaction that takes place during the start-up of the MC between the input filter, clamp circuit, and the converter. A variation of the clamp circuit and start-up strategy is presented, which minimizes the overcurrents that circulate through the converter. For all these reasons, it can be said that the techniques described in this paper substantially improve the MC start-up cycle, representing a step forward toward the development of reliable MCs for real applications.en
dc.description.sponsorshipManuscript received July 24, 2007; revised March 12, 2008. Published July 30, 2008 (projected). This work was supported by Ministerio de Educación y Ciencia under Project ENE 2007-67033-C03-02/ALT.
dc.description.statusPeer reviewed
dc.format.extent15
dc.identifier.citationAndreu , J , De Diego , J M , de Alegria , I M , Kortabarria , I , Martin , J L & Ceballos , S 2008 , ' New protection circuit for high-speed switching and start-up of a practical matrix converter ' , IEEE Transactions on Industrial Electronics , vol. 55 , no. 8 , pp. 3100-3114 . https://doi.org/10.1109/TIE.2008.922575
dc.identifier.doi10.1109/TIE.2008.922575
dc.identifier.issn0278-0046
dc.identifier.urihttps://hdl.handle.net/11556/4507
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=49249138994&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Industrial Electronics
dc.relation.projectIDMinisterio de Educación y Ciencia, ENE 2007-67033-C03-02/ALT
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsDriver
dc.subject.keywordsMatrix converter (MC)
dc.subject.keywordsOvercurrent
dc.subject.keywordsOvervoltage
dc.subject.keywordsProtection
dc.subject.keywordsReset
dc.subject.keywordsStart-up
dc.subject.keywordsSwitching
dc.subject.keywordsControl and Systems Engineering
dc.subject.keywordsElectrical and Electronic Engineering
dc.titleNew protection circuit for high-speed switching and start-up of a practical matrix converteren
dc.typejournal article
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