A new multilevel DC-DC boost converter for fuel cell based power system

Author

Rahul, Jammy Ramesh ; Kirubakaran, A. ; Vijayakumar, D

Author_Institution

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

fYear

2012

fDate

1-2 March 2012

Firstpage

1

Lastpage

5

Abstract

This paper presents a system model of fuel cell based distributed generation systems (DGS) in a standalone AC power supply system. Non-isolated high step-up DC-DC converters are required widely in the industrial applications. Many of these conventional DC-DC converters have the disadvantages of operating at high duty-cycle, high switch voltage stress and high diode peak current. A three-level step-up converter is implemented to boost the fuel cell stack voltage of 90V to 340V. This high DC link voltage is fed to the voltage source inverter and interfaced with the load. Two feedback control loops are designed to make the system operate in stable conditions. This system configuration is suitable for low-power applications. The Performance of the developed system is analyzed in MATLAB/Simulink environment under steady state and transient conditions.

Keywords

DC-DC power convertors; distributed power generation; fuel cell power plants; power system simulation; AC power supply system; MATLAB/Simulink; distributed generation systems; feedback control loops; fuel cell based power system; high DC link voltage; multilevel DC-DC boost converter; three-level step-up converter; voltage 90 V to 340 V; voltage source inverter; Fuel cells; Inverters; Mathematical model; Steady-state; Switches; Transient analysis; Voltage control; Non-isolated; distributed generation systems (DGS); three-level step-up converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical, Electronics and Computer Science (SCEECS), 2012 IEEE Students' Conference on

Conference_Location

Bhopal

Print_ISBN

978-1-4673-1516-6

Type

conf

DOI

10.1109/SCEECS.2012.6184822

Filename

6184822