TY - JOUR A2 - Abdel-Khalik, Ayman S. AU - Muñoz, Juan-Guillermo AU - Gallo, Guillermo AU - Osorio, Gustavo AU - Angulo, Fabiola PY - 2016 DA - 2016/04/14 TI - Performance Analysis of a Peak-Current Mode Control with Compensation Ramp for a Boost-Flyback Power Converter SP - 7354791 VL - 2016 AB - High voltage gain power converters are very important in photovoltaic applications mainly due to the low output voltage of photovoltaic arrays. This kind of power converters includes three or more semiconductor devices and four or more energy storage elements, making the dynamical analysis of the controlled system more difficult. In this paper, the boost-flyback power converter is controlled by peak-current mode with compensation ramp. The closed-loop analysis is performed to guarantee operation conditions such that a period-1 orbit is attained. The converter is considered as a piecewise linear system, and the closed-loop stability is determined by using the monodromy matrix, obtained by the composition of the saltation matrixes with the solutions of the dynamical equations in the linear intervals. The largest eigenvalue of the monodromy matrix gives the stability of the period-1 orbit, and a deep analysis using bifurcation diagrams let us reach a conclusion about the loss of the stability, which is experimentally verified. To avoid overcompensation effects, the minimum value required by the compensation ramp is obtained, and the minimum and maximum values of the load resistance are found too. The system has a good transient response under disturbances in the load and in the input voltage. SN - 1687-5249 UR - https://doi.org/10.1155/2016/7354791 DO - 10.1155/2016/7354791 JF - Journal of Control Science and Engineering PB - Hindawi Publishing Corporation KW - ER -