Multilevel Inverters for High Power Applications with Improved Power Quality Using Lesser Number of Switches 1 Ramyakrishnan.P.V,

Abstract- In this paper a new three- phase multi-level inverter topology is proposed. With the increasing requirements for high power at high power quality, such a converter is inevitable. The major advantages of the proposed topology are improved power quality and lesser number of switches. This leads to lesser complexity of the control circuitry, reduction in switching harmonics and reduction in the cost. Also here the number of voltage sources required is very less compared to conventional methods. This method gives THD of output voltage about 3%. Output of the proposed three phase 31-level inverter has been verified by MATLAB simulation results