The integration of renewable energy sources and the increasing complexity of power systems demand advanced control strategies for inverters to ensure reliable and high-quality power supply. This research focuses on the design of an active fault-tolerant control system for multilevel inverters, aiming to enhance systems power quality. The proposed system combines fault detection, isolation, and compensation mechanisms to mitigate the impact of faults and disturbances, providing a robust and resilient solution for modern power system. Multilevel inverters have gained prominence in power electronics due to their ability to generate high-quality output voltage with reduced harmonic distortion. The growing emphasis on renewable energy integration and the increasing complexity of power grids necessitate the development of fault-tolerant control systems for multilevel inverters. This research aims to address this need by proposing an active fault-tolerant control strategy