Modeling and simulation of a switched reluctance generator system based on variable generation voltage converter

Author

Zhenguo Li ; Zhao, Na ; Kan, Zhizhong ; Lee, Dong-Hee ; Ahn, Jin-Woo

Author_Institution

Key Lab. of Power Electron. for Energy Conservation & Motor Drive of Hebei Province, Yanshan Univ., Qinhuangdao, China

fYear

2009

fDate

18-22 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

When switched reluctance generator (SRG) is operating below its rated speed, the back electromotive force (EMF) may be lower than the excitation voltage, as a result, the phase current will not increase at the generation stage which would reduce the machine utilization coefficient and conversion efficiency of the system. To solve this problem, a variable generation voltage converter is presented in this paper. Compared with the conventional asymmetric bridge converter, the proposed converter needs less power switching devices and can regulate the generation voltage. Besides, the SRG system can achieve low cost and high efficiency below the rated speed. The feasibility and validity of SRG system are verified by mathematical modeling and Matlab simulation.

Keywords

bridge circuits; power convertors; reluctance generators; Matlab simulation; asymmetric bridge converter; back electromotive force; conversion efficiency; excitation voltage; machine utilization coefficient; phase current; switched reluctance generator; variable generation voltage converter; Bridge circuits; Circuit topology; Costs; DC generators; Power generation; Power supplies; Reluctance generators; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International

Conference_Location

Incheon

Print_ISBN

978-1-4244-2490-0

Electronic_ISBN

978-1-4244-2491-7

Type

conf

DOI

10.1109/INTLEC.2009.5351816

Filename

5351816