Produção Nacional
Modeling and Digital Control of a Single-Stage Step-Up/Down Isolated PFC Rectifier
2012; Institute of Electrical and Electronics Engineers; Volume: 9; Issue: 2 Linguagem: Inglês
10.1109/tii.2012.2222039
ISSN1941-0050
AutoresJanderson Duarte, Luiz Ricardo Lima, Leandro Gonçalves Oliveira, Marcello Mezaroba, Leandro Michels, Cassiano Rech,
Tópico(s)Microgrid Control and Optimization
ResumoThis paper presents the dynamic modeling and digital control of a single-stage isolated current rectifier with power factor correction based on the integration of full-bridge and flyback converters. This converter is designed to operate with adjustable output voltage so that it can operate in two distinct operation modes, depending on the input and output voltages. Therefore, small-signal state-space average models are obtained for the converter operating in step-down and step-up operation modes, and analysis and design of the digital control system are included for different operating points. Experimental results based on a 3-kW prototype are presented to validate the proposed control system under distinct conditions.
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