Operating strategies for Switched Reluctance generators in exhaust gas energy recovery systems

Author

Michon, Melanie ; Calverley, Stuart D. ; Atallah, Kais

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK

fYear

2011

fDate

15-18 May 2011

Firstpage

1609

Lastpage

1614

Abstract

The paper presents an operating strategy for high-speed Switched Reluctance (SR) generators employed in exhaust gas energy recovery systems. The machine is operated in “single pulse” mode and a parametric study of the control angles is performed to analyse the machine operation. It is shown that for given speed and power optimum sets of control angles exist, which achieve maximum machine efficiency and minimum thermal stress. This study is undertaken using a coupled, non-linear modeling approach, combining magneto-static finite element analysis with time-domain circuit simulation. The results are compared with measurements performed on a SR generator designed for a prototype exhaust gas energy recovery system showing overall good agreement.

Keywords

angular velocity control; finite element analysis; machine control; power control; reluctance generators; thermal stresses; time-domain analysis; control angles; coupled nonlinear modeling approach; exhaust gas energy recovery systems; high-speed SR generators; machine efficiency; machine operation; magnetostatic finite element analysis; power control; single-pulse mode; speed control; switched reluctance generators; thermal stress; time-domain circuit simulation; Current measurement; Generators; Iron; Loss measurement; Phase measurement; Strontium; Torque; automotive turbo-generator; control; high speed machines; switched-reluctance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines & Drives Conference (IEMDC), 2011 IEEE International

Conference_Location

Niagara Falls, ON

Print_ISBN

978-1-4577-0060-6

Type

conf

DOI

10.1109/IEMDC.2011.5994601

Filename

5994601