Performance enhancement of gwo pso Optimized pi controller fed cuk Integrated boost converter in grid Connected PV system

Abstract

In power industry, incorporating distributed renewable resources newlineinto the power system is essential for increasing the system reliability and newlinestability. To achieve maximum cost effectiveness during the generation of newlineelectricity, a process of integrating the distributed renewable resources with newlinethe grid has been recommended. The necessity of ensuring improvement in newlineperformance of photovoltaic module arises experienced in solar irradiation newlineand temperature. The output of the PV cell also reduces significantly due to newlinethe changes in operating conditions. In order to meet the future load newlinedemands, handling the situation of fast degradation of conventional resources newlineand to deal with increase in pollution, a new methodologies has been newlineproposed. newlineThe performance of the PV system mainly depends on the newlineconverter associated with the electrical circuit of PV system. The several DCDC newlineconverters have been proposed for generating the Maximum power point newlineand increasing the efficiency of the PV system by reducing the ripples in the newlineinput current. Boost converter is used to boost the PV output and moreover, it newlineis helpful only generating the step up voltage ratio. The voltage conversion newlineratio can be increased or decreased through the conventional buck-boost newlineconverter but it has the restriction in attaining the maximum possible MPPT newlinedue to the discontinuity current operation. These issues can overcome by the newlineCUK, SEPIC and ZETA Converter. They have the advantages of getting newlinecontinuous input and output current, therefore it has the ability of step-up or newlinestep-down the voltage, but the performance of MPPT is limited by the large newlineripples at the input current. The ripples occur due to the solar irradiation newlinearound the MPP. newline