Harmonic mitigation in multilevel inverters for power quality improvement in power system

Multilevel inverters have gained popularity over conventional two-level inverters in various power applications due to their ability to generate high-quality output with low total harmonic distortion and high efficiency. The widespread use of heavy electrical machinery and equipment in industries has increased the demand for nonlinear loads, leading to the presence of harmonics and a decline in power quality. To improve power quality, it is essential to eliminate these undesirable harmonics from the system. In this study, the pulse width modulation (PWM) technique was employed to eliminate unwanted harmonics from the inverter’s output. Using MATLAB/Simulink, 15-level inverters were designed with two different switching techniques.