Kwasinski, Alexis2010-10-282010-10-282017-05-112010-10-282010-10-282017-05-112010-05May 2010http://hdl.handle.net/2152/ETD-UT-2010-05-1160textThis thesis studies a multiple-input single ended primary inductor converter (MI SEPIC) topology. The configuration allows the integration of different low-power distributed generation sources, such as individual photovoltaic modules, fuel cells, and small residential wind generators, into a common dc main bus. The current source interface allows the integration of all types of sources without the addition of filters; sources that require a nearly constant input current, such as fuel cells. In addition to discussing the circuit’s main models and operation, the thesis evaluates the stability under a decentralized PI control scheme through small signal analysis. The analysis is verified with simulations and experiments with prototypes. A derived circuit topology, the isolated MI SEPIC, is also explored here. In addition, a nonlinear control scheme, Lyapunov-based control, is implemented to stabilize an MI SEPIC.application/pdfengDistributed generationEnergy conversionMicro-gridMultiple-input dc-dc converterPower electronicsSEPICDecentralized PI controlthesis2010-10-28