SOME INVESTIGATIONS ON CONTROL OF PV-BATTERY SYSTEMS

Abstract

In this thesis, reports on the modelling and simulation of the photovoltaic systems with grid connected for three phase as well as single phase, PV integrated with battery standalone system and grid to battery system are presented. The key parameters impact of PV systems on quality of the power and power generation are carried out in this research. To generate electrical power and which is also one of the fastest growing power generation in the world PV technology is one of the biggest renewable energy resources. In this thesis the grid connected system and integration of the battery storage system with the PV is seen. In the chapter 2 simulink model of two stage power conversion of grid connected PV for a three phase system was carried out. System output was 100kW and the effects of changes in solar irradiance and temperature, on the PV system output power, are simulated. Similarly in chapter 4 single stage single phase system was simulated. In the chapter 3 modeling and simulation of PV-Battery storage system is carried out using the MATLAB with a system of 1kW. PV panel is connected to the DC-DC converter through the DC-AC inverter to the Point of Common Coupling (PCC). The intergration of the battery storage system with the grid is carried out in the chapter 5. Very encouraging results are yielded in the battery storage system integration with the PV system that results in counteracting the fluctuation of the PV installation and thus helping in ensuring the power supply to be maintained constant. The great process have been made by the scientists in the study of solar power. We know that solar radiation on earth is very large. Entire consumption of the energy for all human for one year can be fulfilled by the 40 minutes of solar radiation on earth. To protect the environment, ensure sustainable economic development and to alleviate the energy crisis use of solar energy is done. Solar industry is divided into solar photovoltaic industry and solar thermal industry.