Model Predictive Control of LC-Filtered Voltage Source Inverters with Optimal Switching Sequence

dc.contributor.authorZheng, Changming
dc.contributor.authorDragicevic, Tomislav
dc.contributor.authorZhang, Zhenbin
dc.contributor.authorRodriguez, Jose
dc.contributor.authorBlaabjerg, Frede
dc.date.accessioned2024-06-17T19:34:02Z
dc.date.available2024-06-17T19:34:02Z
dc.date.issued2021-03
dc.descriptionIndexación: Scopus.
dc.description.abstractVoltage source inverters with output LC filter enable a sinusoidal output voltage with low harmonics, suitable for islanded ac microgrid or uninterruptible power supply applications. Conventional finite-set model predictive voltage control (MPVC) applies only a single switching vector per control period, leading to a variable switching frequency and significant output ripple. This article resolves these issues by proposing an improved MPVC with optimal switching sequence (OSS-MPVC). First, an improved vector switching sequence is defined, aiming to reduce the output-voltage ripple with a constant switching frequency. Then, to tackle the difficulty in extending the OSS to high-order systems due to the coupling effect of the output filter, a generalized 'one-step estimation' solution is proposed, which directly associates the control-variable gradients with the vector switching sequence. To further enhance the output-voltage tracking accuracy, intersample dynamics are taken into account in the cost function. The control delay and dead-time compensation are also considered. Simulations and experimental results verify the feasibility of the proposed method.
dc.description.urihttps://ieeexplore-ieee-org.recursosbiblioteca.unab.cl/stamp/stamp.jsp?tp=&arnumber=9165198
dc.identifier.citationIEEE Transactions on Power Electronics Volume 36, Issue 3, Pages 3422 - 3436 March 2021 Article number 9165198
dc.identifier.doi10.1109/TPEL.2020.3015540
dc.identifier.issn0885-8993
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/57643
dc.language.isoen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.subjectFixed switching frequency
dc.subjectinverters
dc.subjectmicrogrid
dc.subjectmodel predictive control (MPC)
dc.subjectoptimal switching sequence (OSS)
dc.titleModel Predictive Control of LC-Filtered Voltage Source Inverters with Optimal Switching Sequence
dc.typeArtículo
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