Optimized Design of Distributed Power Systems for High Efficiency, High Power Density and Low EMI Noise

Author

Lee, Fred C. ; Wang, Shuo ; Xu, Ming ; Lu, Bing ; Wang, Chuanyun ; Kong, Pengju

Author_Institution

Bradley Dept. of Electr. & Comput. Eng., Virginia Tech., Blacksburg, VA

fYear

2006

fDate

Sept. 2006

Firstpage

1

Lastpage

12

Abstract

This paper first discussed the EMI issues and solutions for boost PFC converters. The parasitic cancellation technique is then introduced to improve EMI filter´s high frequency performance. A two-stage PFC topology is introduced to improve the power density of PFC. LLC topology is recommended for front-end DC/DC converters due to it high efficiency. For onboard DC/DC converters, one-stage approach is first proposed. A self-driven full-bridge resonant circuit and a current tripler are introduced to improve the current density and switching frequencies. The paper also discussed the two-stage approach and intermediate bus architecture

Keywords

DC-DC power convertors; distribution networks; electromagnetic interference; interference suppression; power factor correction; resonant power convertors; DC-DC converter; EMI noise; LLC topology; boost converter; current tripler; distributed power system; intermediate bus architecture; parasitic cancellation technique; power factor correction; self-driven full-bridge resonant circuit; switching frequency; two-stage PFC topology; Circuit topology; DC-DC power converters; Delta modulation; Design optimization; Electromagnetic interference; Filters; Frequency conversion; Noise reduction; Power systems; Semiconductor device noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2006. INTELEC '06. 28th Annual International

Conference_Location

Providence, RI

Print_ISBN

1-4244-0430-4

Electronic_ISBN

1-4244-0431-2

Type

conf

DOI

10.1109/INTLEC.2006.251672

Filename

4018174