Predictive control applied to a single-stage, single-phase bidirectional AC-DC converter

• Autor(a) principal: Oliveira, Herivelton Alves de
• Data de Publicação: 2022
• Outros Autores: Torrico, Bismark Claure, Oliveira Júnior, Demercil de Souza, Barbosa, Samanta Gadelha, Almeida Filho, Magno Prudêncio de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/69449
• topic: Dual active bridge converter; Generalized predictive control; Model predictive control; Multi-Port converters; Predictive control

This work aims to implement the control system of a single-phase, multi-port AC-DC converter with high-frequency isolation based on the dual active bridge (DAB) topology associated with the three-state switching cell (3SSC) applied to a distributed generation system. The converter has one ac port and two dc ports, this being a multi-input, multi-output (MIMO) system in which there is a coupling between the input and output variables. The generalized predictive control (GPC) is chosen to regulate the dc-link voltages. GPC is a well-consolidated approach in the literature, which can deal with MIMO coupled systems while presenting friendly-tuning rules. The current loop employs a traditional proportional plus resonant (P+R) controller because it has a single-input, single output (SISO) characteristic, as advanced controllers are unnecessary. Experiments are performed on a 1-kW prototype to validate the performance of the developed controller and show its advantages compared with traditional control strategies.