Enhanced MPPT for Solar Systems Using Chaotic PSO and DC-DC Luo Converter
D. Karthikeyan, Anish John Paul M, K. Rajesh, N Subharathna, T. Jayakumar, M. Sasikumar · 2025
This study describes an enhanced PV grid tied system featuring PSO based MPPT controller and PI controller for efficient power conversion and grid support. A Luo converter regulates DC voltage, while a single phase VSI connects to grid. The PSO based MPPT optimizes the Luo converter's duty cycle for maximum power extraction, and the PI controller stabilizes power flow by managing active and reactive power. The proposed system demonstrates superior dynamic response and adaptability to changing environmental conditions, enabling efficient energy utilization and reliable grid integration. The Matlab/Simulink program is utilized to acquire the simulation results, which are then used to evaluate the circuit's efficacy. Simulation results highlight the performance improvements in power extraction and grid stability compared to traditional MPPT methods. When the controllers are compared, the THD value of the intended task is 1.58%, and the efficiency achieved with the Luo converter is 93.5%.