Improved power quality operation of symmetrical and asymmetrical multilevel inverter using invasive weed optimization technique

Low switching frequency pulse width modulation (PWM) technique for and control of multilevel inverter in medium voltage high power applications is preferred order to reduce the losses. In this context, a operated with Selective harmonics minimization PWM offers better quality waveform at reduced After Fourier series analysis, system non-linear simultaneous transcendental equations obtained. These are then solved obtain angles have certain low minimum value regulation fundamental magnitude. paper, novel invasive weed optimization (IWO) proposed compute angles. The can both symmetrical asymmetrical inverters. Thus it has superiority over well-known techniques such as GA, PSO, DE, ACO, etc. Moreover, index ranges, provides faster convergence accurate results which been demonstrated paper. computational verified experimental result on prototype developed laboratory. field programming gate arrays (FPGA) based controller used implement technique. hardware found close agreement computed results.