Implementation of Multicarrier Based Control Schemes for Cascaded 9-Levels Multilevel Inverter

In this proposed work upon the various Multi Carrier Based Pulse width (MCBPW) modulation techniques implemented by single phase multilevel inverter and their comparisons. The main focus in this paper is reducing of total harmonic distortion (THD). The multilevel inverter is used to improve the voltage quality by reducing the harmonics, as the number of voltage levels of multilevel inverter (MLI) is increased the harmonics are reduced and hence losses are minimized significantly, increasing the efficiency of the system. In proposed paper generation of carrier based PWM scheme using IPD, POD and APOD. This control signal used in multilevel inverter (MLI), and 9-level inverter system modeled and simulated using MATLAB simulator. The test results verify the effectiveness of the proposed strategy in terms of low distorted voltage with low-switching losses and total harmonic reduces in output voltage with increasing the number of voltage level.