A chaotic soft switching PWM Boost converter for EMI reduction

Author

Li, H. ; Li, Z. ; Halang, W.A. ; Tang, W.K.S.

Author_Institution

Fac. of Math. & Comput. Sci., Fern Univ. in Hagen, Hagen

fYear

2008

fDate

June 30 2008-July 2 2008

Firstpage

341

Lastpage

346

Abstract

In this paper, a novel method based on chaotic dynamics and soft switching control is proposed for the reduction of the electromagnetic interference (EMI)in DC-DC converter. There, a chaotic carrier plays a key role to generate chaotic wave, but a practical design is not yet available in literature. Therefore, to design a chaotic carrier, a practical design based on a chaotic mapping and sawtooth wave generator is proposed to covert the periodic sawtooth wave to the chaotic one. Simulation results show that the EMI of the DC-DC Boost converter has been much reduced due to the total energy more evenly spreading over the frequency band and the reduced energy loss. It is also found that the efficiency of the DC-DC Boost converter is improved as compared with the hard and soft switching PWM controls.

Keywords

DC-DC power convertors; PWM power convertors; electromagnetic interference; interference suppression; switching convertors; DC-DC boost converter; EMI reduction; PWM boost converter; chaotic dynamics; chaotic mapping; chaotic soft switching converter; chaotic wave; electromagnetic interference reduction; sawtooth wave generator; soft switching control; Chaos; DC-DC power converters; Electromagnetic interference; Energy loss; Filters; Frequency; Pulse width modulation; Pulse width modulation converters; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on

Conference_Location

Cambridge

Print_ISBN

978-1-4244-1665-3

Electronic_ISBN

978-1-4244-1666-0

Type

conf

DOI

10.1109/ISIE.2008.4676999

Filename

4676999