Title :
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
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;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219590
