Integration of Solar Energy, Transformerless Step-Up Converter and H8 Inverter to Reduce Leakage Currents for Grid Connected Applications

Solar energy is a promising alternative energy source for a sustainable pollution-free future. But certain factors such as solar irradiation, lack of sunlight during night hours etc. degrade or diminish the scope of solar power. To address with this problem MPPT technique is used here. Due to the requirements of high efficiency, reliability, power density and low cost and reduced size, transformerless PV inverters can be utilized in a grid-connected solar energy system. But the presence of transformerless system will lead to leakage currents, which is not at all acceptable in the case of grid connected applications. So to reduce leakage currents the modified version of H6 inverters ie an H8 inverter is used in this paper. In order to synchronize H8 inverter and grid PI controllers are used. This paper aims to utilize solar energy and reduce the leakage currents produced by transformerless inverter for grid connected applications. This is done by the integration of solar, transformerless step-up converter and h8 inverter. The concept is to utilize renewable sources effectively which helps in reducing the grid demand. Citation: Indhu C N, Nehru College of Engineering and Research Centre ; Mr. P. Sundaramoorthy ,Nehru College of Engineering and Research Centre . "Integration of Solar Energy, Transformerless Step-Up Converter and H8 Inverter to Reduce Leakage Currents for Grid Connected Applications." Global Research and Development Journal For Engineering : 51 - 55.