Author(s) :
Sefania. S, G. W. Martin
Conference Name :
International Conference on Modern Trends in Engineering and Management (ICMTEM-25)
Abstract :
Renewable energy systems offer a sustainable and eco friendly solution to the world’s growing energy demands. So, Photovoltaic (PV) systems effective grid integration and the rising demand for renewable energy. PV depends on sunlight, which varies with weather, time of day, and seasons causing fluctuating power output. Traditional converters and controllers face challenges in maintaining stable voltage, power quality, and dynamic response. Therefore, this paper addresses these issues by implementing a Z source boost converter and a Class Topper Optimization (CTO) optimized Proportional Integral (PI) controller to improve the efficiency and grid stability. The system consists of a PV module, a Z source boost converter, a CTO optimized PI controller, a battery, a bi directional buck boost converter, a three phase voltage source inverter (VSI), and an LC filter. A Z source boost converter is employed for voltage regulation, improving efficiency, reducing stress, and increasing reliability. The CTO optimized PI controller is used for improving the converter performance, mainly it regulates the converter. Further, the bidirectional buck boost converter for battery energy storage ensures efficient energy flow and grid stability. The control strategy employs DQ0 transformation for active and reactive power calculations, with dedicated PI controllers ensuring grid synchronization and power balance. A 3 ϕ VSI converts the regulated DC power into AC, which is subsequently filtered and injected into the three phase grid. Finally, this paper is implemented by MATLAB 2021a Simulink Software and the proposed work offers the efficiency of 98% and the battery SOC of 60% is achieved and improves the overall system efficiency.