Model predictive control based capacitor voltage balancing strategies for modular multilevel converters

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dc.creatorMora Zúñiga, Andrés
dc.creatorUrrutia O., Matías
dc.creatorCárdenas Dobson, Jesús Roberto Pedro Alejandro
dc.creatorAngulo, Alejandro
dc.creatorEspinoza Bolaños, Mauricio
dc.creatorDías, Matías
dc.creatorLezana, Pablo
dc.date.accessioned2024-10-24T16:13:38Z
dc.date.available2024-10-24T16:13:38Z
dc.date.issued2019-03
dc.description.abstractThis paper presents two capacitor voltage balancing (CVB) strategies for modular multilevel converter (MMC) applications. Both balancing schemes are based on model predictive control and are designed to efficiently solve a constrained optimal control problem, where the predicted capacitor voltage errors are included in the cost function with the demanded output voltage of a cluster being forced through an equality constraint. The first method proposed in this paper computes specific modulation indexes for each module using the explicit solution of a relaxed version of the original optimization problem. The second approach proposed in this paper reduces the complexity of the original problem by linearizing the objective function and using an optimal sorting network based on a greedy algorithm to solve this approximation. Considering the structures of both solution approaches, they are integrated into modulation schemes based on phase-shifted and level-shifted pulsewidth modulation algorithms, respectively. Experimental results obtained from a nine-cell single-phase MMC prototype demonstrate the good performance achieved with the proposed methodologies, as well as the implementation simplicity offered by the proposed CVB algorithms.
dc.description.procedenceVicerrectoría de Docencia::Ingeniería::Facultad de Ingeniería::Escuela de Ingeniería Eléctrica
dc.description.sponsorshipFondo Nacional de Desarrollo Científico y Tecnológico/[1180879]/FONDECYT/Chile
dc.description.sponsorshipFondo Nacional de Desarrollo Científico y Tecnológico/[11170229]/FONDECYT/Chile
dc.description.sponsorshipCentro Avanzado de Ingeniería Eléctrica y Electrónica/[FB0008]/AC3E/Chile
dc.description.sponsorshipComisión Nacional de Investigación Científica y Tecnológica-Programa Formación de Capital Humano Avanzado/[2013-21130042]/CONICYT-PCHA/Chile
dc.identifier.doihttps://doi.org/10.1109/TIE.2018.2844842
dc.identifier.issn0278-0046
dc.identifier.urihttps://hdl.handle.net/10669/99957
dc.language.isoeng
dc.rightsacceso abierto
dc.sourceIEEE Transactions on Industrial Electronics, 66(3), 2432-2443
dc.subjectFloating capacitors
dc.subjectmodel predictive control
dc.subjectmodular multilevel converters
dc.subjectpulse-width modulation
dc.titleModel predictive control based capacitor voltage balancing strategies for modular multilevel converters
dc.typeartículo original

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