Study of a novel buck-boost inverter for photovoltaic systems
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For inverter-based photovoltaic(PV) systems in grid-connected applications as distributed generators(DG), variable sources often cause wide changes in the inverter input voltage above and below the output voltage, thus demanding a buck-boost operation of inverters. Many traditional full-bridge buck inverters, two-stage inverters, single-stage buck-boost inverters either have complex structure or have limited range of input voltage. The authors have proposed and developed an innovative single-phase, single-stage, flyback-based, buck-boost inverter for renewable energy systems, especially for PV systems in grid-connected applications. This paper focuses on the analysis of the working principles, computer simulation of the operation, and design consideration of the inverter for grid-connected applications.
[1] Liuchen Chang,et al. Closed-loop SPWM control for grid-connected buck-boost inverters , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).
[2] J. Bordonau,et al. Topologies of single-phase inverters for small distributed power generators: an overview , 2004, IEEE Transactions on Power Electronics.