A LLC Resonant Converter applicable to high power DC-DC conversion: Harmonic analysis

Author

Gopiyani, Alpa ; Patel, Vaibhav

Author_Institution

Electr. Eng. Dept., AVPTI, Rajkot, India

fYear

2013

Firstpage

1

Lastpage

5

Abstract

Harmonic analysis of LLC Resonant Converter for high power DC-DC conversion is presented in this paper. Performance of LLC resonant tank to filter the harmonic contents from the square wave voltage applied to the switching elements IGBTs is analyzed through simulation. The DC-DC Converter consists of inverter and rectification stage with capacitive filter. The system is operated in closed-loop control with PI controller to maintain constant output voltage against line and load variation. THD is calculated through simulation and converter is practically tested for the harmonics content. The obtained results through simulation and it is practically proved that harmonic contents reduced significantly from the system due to filtering action of the LLC resonant tank.

Keywords

DC-DC power convertors; PI control; closed loop systems; harmonic analysis; harmonic distortion; insulated gate bipolar transistors; power bipolar transistors; resonant invertors; resonant power convertors; switching convertors; IGBTs; LLC resonant converter; LLC resonant tank; PI controller; capacitive filter; closed-loop control; constant output voltage; harmonic analysis; high power DC-DC conversion; inverter stage; rectification stage; square wave voltage; Harmonic analysis; Inverters; Power harmonic filters; Pulse width modulation; Resonant frequency; Switches; Voltage control; Harmonic Analysis; LLC Resonant Converter; PWM Switching; THD (Total Harmonic Distortion);

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering (NUiCONE), 2013 Nirma University International Conference on

Conference_Location

Ahmedabad

Print_ISBN

978-1-4799-0726-7

Type

conf

DOI

10.1109/NUiCONE.2013.6780143

Filename

6780143