Researchers are exploring new approaches to improve multilevel inverter performance, including the use of rotating trapezoidal SPWM and other pulse width modulation techniques. Various studies are investigating the design and implementation of multilevel inverters for industrial and renewable applications, with a focus on techniques such as CB-PWM and SVPWM. The development of optimized control schemes, such as those using grey wolf optimization, is also being investigated to enhance the efficiency and performance of these systems.