The integration of renewable energy sources, such as solar and wind power, has become a key solution to addressing the rising global demand for sustainable energy. This paper presents the design and implementation of a multi-level inverter for a grid-connected hybrid photovoltaic (PV)-wind-battery based system aimed at household applications. The proposed system utilizes a multi-level inverter to efficiently convert and regulate power from hybrid renewable energy sources into a stable AC supply, ensuring minimal harmonic distortion and enhanced power quality. The integration of solar and wind energy with battery storage ensures continuous and reliable energy supply, even during variable weather conditions, while optimizing energy efficiency. A robust control system is incorporated to manage the power flow from the PV, wind, and battery sources to the grid and household loads. The system also features maximum power point tracking (MPPT) algorithms to extract maximum energy from both the PV and wind sources. A simulation of the system in a MATLAB/Simulink environment demonstrates the feasibility and effectiveness of the proposed solution in ensuring energy reliability, cost-effectiveness, and minimal environmental impact for residential applications. The results highlight the potential of this hybrid system to provide an efficient, sustainable, and flexible energy solution for modern households.

Multi-level inverter, hybrid PV-wind system, grid-connected, battery storage, maximum power point tracking (MPPT), household energy applications.