Design of DC/DC VE DC/AC power converters for solar power systems and control with Fuzzy-PI

Energy has an extremely important role in terms of both being an indispensable part of human life and determining their socio-economic level, level of development, industry, science, technology and security. With the developing technology and the increasing population, a great part of the need for energy is met by fuels such as petroleum, coal and natural gas. However, the damage they have caused to the environment and the depletion as a result of their being widely used and accordingly the increase in prices have led to an increase in interest in the use of renewable energy sources in the end. Solar energy is the forefront and the most widely exploited alternative energy source, which forms the basis of renewable energy sources. Considering the advantages of accessibility and potential, solar energy is more important than other renewable energy sources. Photovoltaic panels used in solar energy systems are structures that convert the photon energy of sunlight directly to DA electrical energy. However, the value of this voltage generated by the panel differs from the AA energy type that is commonly required by consumers in both amplitude and wave form. For this reason, a number of power converters are needed for the energy generated by the panel to be used effectively. These converters are DA/DA and DA/AA converters used in solar energy systems. In this study, it is aimed it is also aimed that consumers could use the energy produced by the panels through the control technique in which fuzzy logic and PI control techniques are used together. At the same time, the energy generated by the solar panels is stored by the battery and used to feed the loads when energy production cannot be done. In addition, maximum power point tracking system has been used to increase the efficiency of the system in order to ensure that the energy obtained from the solar panels can be produced in the most efficient way.