Control of a SIC-based cascaded multilevel converter cell for solar applications

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dc.creatorAlysson Machado
dc.creatorThiago Parreiras
dc.creatorGideon Lobato
dc.creatorJosé A. de S. Brito
dc.creatorIgor Amariz Pires
dc.creatorCardoso F. Braz
dc.date.accessioned2025-03-28T14:44:05Z
dc.date.accessioned2025-09-08T23:24:56Z
dc.date.available2025-03-28T14:44:05Z
dc.date.issued2017
dc.identifier.urihttps://hdl.handle.net/1843/81056
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartof8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
dc.rightsAcesso Restrito
dc.subjectConversores eletrônicos
dc.subjectGeração de energia fotovoltaica
dc.subjectEnergia renovável
dc.subject.otherVoltage control , Topology , Silicon carbide , Inductors , Maximum power point trackers , Pulse width modulation , Voltage measurement
dc.subject.otherPhotovoltaic Inverters , Solid-State Transformer , Silicon Carbide , Closed-loop Control , Cascaded Multilevel Converter
dc.subject.otherMultilevel Converter , Cell Stage , Closed-loop Control , Silicon Carbide , Photovoltaic System , Maximum Power Point , Maximum Power Point Tracking , Solar Power Plants , Power Point Tracking , Solid-state Transformer , Galvanic Isolation , Frequency Transformer , Conventional Topology , Simulation Results , Step Change , Current Control , Switching Frequency , PI Controller , Power Quality , Control Stage , Input Stage , DC Link , Output Stage , Resonant Controller , Phase-locked Loop , Turns Ratio , Power Reference , Primary Voltage , Grid Side , Current Stress
dc.titleControl of a SIC-based cascaded multilevel converter cell for solar applications
dc.typeArtigo de evento
local.description.resumoCentral inverters based on conventional topologies are the current preferred solution in solar farms because of their low cost and simplicity. However, such topologies have some disadvantages: poor Maximum Power Point Tracking (MPPT), and the use of bulky filters and Low Frequency (LF) transformers. An attractive alternative in this case is the Cascaded Multilevel Converter (CMC), which can provide a distributed MPPT control, allied with overall reduced footprint and high flexibility. A CMC cell using silicon carbide devices has been proposed and designed in previous works to incorporate three main functions: MPPT control of a Photovoltaic (PV) array, galvanic isolation through a Solid-State Transformer (SST) and control of grid power flow. This work proposes a closed-loop control strategy for each stage of the CMC cell and shows its validation thorough simulations. Experimental results are performed and presented in a single-phase 6.2 kW prototype cell. These results lead to the conclusion that the applied control techniques are suitable to the PV application.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG

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