Implementation of hybrid cascaded multilevel inverter for generating different voltage levels

This paper explicates about engendering higher voltage levels using hybrid cascaded multilevel inverters for elimination of triplen harmonics. As multilevel inverters are unanimously endorsed for the reduction of harmonics and also for the total harmonic reduction for generating premium output waveforms with discrete frequency and minimized switching losses. With such characteristic advantages it is mostly used in empowering high power application systems. PSO optimization is used to generate different angles for their corresponding voltage levels. The proposed method is efficient producing higher voltage levels using the same prototype together with the capability of improving the speed of the convergence. The controller involved in enhancing the control strategy is FPGA (Field Programmable Gate Array) that is preferred due to its higher frequency ranges and harmonic profile. The advantage of using the proposed method is that the number of bridges connected can be minimized. This method is based on the appraisal of various angles generated for obtaining distinctive waveforms. The simulation results are carried out to authenticate the reduction of harmonics with the proposed method.