DC link voltage balancing in multilevel inverter

Author

Balamurugan, M. ; Sahoo, Sarat Kumar ; Karthikeyan, S. Prabhakar ; Lall, Krishna Prabhakar ; Raglend, I. Jacob

Author_Institution

Sch. of Electr. Eng., VIT Univ., Vellore, India

fYear

2015

fDate

19-20 March 2015

Firstpage

1

Lastpage

6

Abstract

This paper presents an effective method to control the DC link voltage balance in diode clamped Multilevel Inverter. To trigger the gate pulse for the switches, Level Shifted PWM technique is used. Two closed PI controllers are used for balancing the DC voltage control and load voltage control and also used for analyzing the performance parameters and their responses are displayed in the table. The simulation is made in Matlab/Simulink and their harmonic distortions are analyzed through the Fast Fourier transforms window and the end results are tabulated. The computer simulation results show the effectiveness of this method.

Keywords

PI control; PWM invertors; fast Fourier transforms; harmonic distortion; load regulation; voltage control; DC link voltage balancing; DC voltage control; closed PI controllers; diode clamped multilevel inverter; fast Fourier transforms; gate pulse; harmonic distortions; level shifted PWM technique; load voltage control; multilevel inverter; Capacitors; Harmonic analysis; Inverters; Power harmonic filters; Pulse width modulation; Topology; Voltage control; Harmonics; Multilevel Inverter; PWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuit, Power and Computing Technologies (ICCPCT), 2015 International Conference on

Conference_Location

Nagercoil

Type

conf

DOI

10.1109/ICCPCT.2015.7159461

Filename

7159461