Authors : S. Swathi, P. Sridhar and P. Mallikarjuna Sarma
Abstract: Solar Photo Voltaic (PV) panels are producing energy during day time to store the energy. Storage batteries are employed and solar inverter with MPPT is used to supply power to the load. The power generated can also be supplied to the grid at times when the load is low. The DC voltage for charging the battery could also be obtained from fuel cells utilizing biogas or hydrogen. Taking the whole system a hybrid system power quality of such a system is investigated in this study. The proposed Interconnected Hybrid Grid Interactive System (IHGIS) works on multiple dc sources which produce energy in different patterns and load itself changes as per consumer’s requirement and consumer loads are non linear nature. The MPPT algorithm itself causes fluctuations in voltage fed to the battery. All these factors can cause IHGIS to produce harmonics in the system. The performance of the Battery Energy Storage System (BESS) is important to take care of the fluctuations in power generations from various sources. A mathematical model of the system described and simulated in the MATLAB/Simulink environment.
S. Swathi, P. Sridhar and P. Mallikarjuna Sarma, 2018. Power Quality Improvement in Hybrid Energy Conversion Systems. Journal of Engineering and Applied Sciences, 13: 5599-5604.