Performance and control system design for FPGA based CVMPPT boost converter for remote SPV water pumping system applications

Abstract

Solar energy is a renewable and a vast source of primary energy to electricity. PV module is increasingly employed in utilizing the sun's energy for generating electrical energy. The photovoltaic pumping has become one of the most promising fields in photovoltaic applications especially in remote locations. As the output characteristic of a photovoltaic module is nonlinear and changes with solar irradiation and cell's temperature so attention is paid to their design and their optimal use. Therefore a Maximum Power Point Tracking (MPPT) technique is needed to maximize the produced energy. In this paper, the proposed work is to extract maximum power from the PV array to powered water pumping system. Boost converter with Constant voltage MPPT (CVMPPT) technique is employed to drive centrifugal pump through permanent magnet DC motor. The 1KWp solar PV array is designed and modeled in MATLAB Simulink environment. CVMPPT is implemented in Xilinx system generator which is interfaced with MATLAB Simulink to control the DC-DC boost converter model in order to extract power to drive PMDC motor. The detailed study is carried out and the results are presented.