Hybrid power sharing system of grid and solar photovoltaic using microcontroller

Abstract

This project focuses on the rising demand for electricity in Bangladesh and what can be done to meet the rising demands by sharing Solar power with the national grid, thus reducing dependence on the grid. In the context of Bangladesh, where the booming demand for electricity, its spiraling costs, along with the rising levels of greenhouse gas emissions have contributed to the search for alternative energy sources and alternative systems of generating electrical power and sharing power to the grid, thus reducing the dependence on the grid and dependence on fossil fuels. So, renewable energy sources like solar, hydro, biomass, wind etc. can be used to generate electricity of which solar power is the most abundant and has huge potential. However, the typical solar systems that we have do not share any power with the grid and does not play any role in reducing our dependence on the grid. So, there is a lot of scope for work to be done in this sector. One of the main reasons for this is not using an automatically controlling system to have better efficiency. Another major issue with the typical solar system is that a lot of solar energy gets wasted when the battery gets full and loads are getting power from the grid and when the grid is available, there is no use of solar though lots of solar energy is being produced. So, we need a system which will be able to control the total power system of a family utilizing the both power supplying sources solar and grid with a better way so that minimum grid power would be used and maximum solar power would be used from the same system. Even though a lot of work has been done on grid-tie inverters, there are still the issues related to synchronization of the output fluctuating DC voltage from the solar panels used in grid-tie inverters, especially into the research articles that we have looked into before. So, in order to address these issues, the use of a microcontroller-based solar power-sharing system is a very suitable solution. Hence, our proposed Hybrid Power Sharing System of Grid and Solar Photovoltaic Using Microcontroller can possibly fulfill all these parameters and help solve all these issues.