H-Bridge Multi Level Inverter With Reduced THD For Automotive Application
This paper presents a compact inverter-battery combination for automotive application as a replacement for DC-
AC converter. A 9 level H-bridge inverter is introduced for this purpose with a reduced amount of Total Harmonic
Distortion. When compared to the conventional inverter multilevel inverters have an advantage on Total Harmonic
Distortion reduction; by increasing the levels THD can be reduced without changing efficiency. Relevance of H-bridge
inverter, change in THD with respect to multi level inverter levels and comparison in THD values , working principle
circuit design, THD analysis, simulation results of the power circuit using MATLAB-SIMULINK, simulation of control
circuit using Proteus-ISIS schematic capture and Hardware prototype are included in this paper.
Keywords: Multilevel Inverter, Total Harmonic Distortion, Automotive application, 9-level H-bridge inverter.