Average Torque Control of an 8/6 Switched Reluctance Machine for Electric Vehicle Traction.

This paper presents two average torque control techniques implemented on a 30kW peakpower 8/6 switched reluctance machine (SRM) used for electric vehicle traction: a feed-forward open-loop technique and a closed-loop technique. The computation of the control drive parameters used by the feed-forward open-loop control scheme is briefly described together with simulation and experimental results. A method of on-line average torque estimation, making possible the implementation of the closed-loop average torque control method is described. Measurements on the test bench are presented and a discussion is made regarding the advantages of the closed-loop technique. [ABSTRACT FROM AUTHOR]