Improving efficiency in switched reluctance motor drives with online control of turn-on and turn-off angles

Author

Blanqué, B. ; Perat, J.L. ; Andrada, P. ; Torrent, M.

Author_Institution

Departament d´Engineyeria Electr., UPC

fYear

2005

fDate

11-14 Sept. 2005

Abstract

A current controlled switched reluctance motor drive for variable speed applications with efficiency optimisation is presented. Firing angles are computed online, the turn-on is calculated by means of the rule of Bose, and the turn-off is calculated using the general theory of the optimal turn-off angle proposed by Gribble. In steady state operation, the initial selection of firing angles is fine-tuned by means of an algorithm that minimizes the input power of the drive. A 6/4 switched reluctance motor drive prototype was tested and the experimental results show an improvement in online efficiency, a good steady-state performance and no deterioration in the dynamic response. An efficiency comparison with a commercial vector-controlled induction motor drive of the same size is also included

Keywords

dynamic response; electric current control; machine control; machine testing; reluctance motor drives; variable speed drives; current control; dynamic response; firing angles; online control; rule of Bose; switched reluctance motor drives; turn-off angles; turn-on angles; Brushless DC motors; Motor drives; Pareto optimization; Prototypes; Reluctance machines; Reluctance motors; Steady-state; Testing; Torque; Voltage control; DSP; Efficiency; Switched reluctance drive; Variable speed drive;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219590

Filename

1665780