A new method for controlling the switched reluctance motor in the low-speed range

Abstract

This paper presents a proposal of a new control method of the switched reluctance motor (SRM) in the low-speed range. The proposed method limits the maximum value of SRM drive supply current. Application of the method results also in improvement of the drive efficiency compared to the classical current control method, so it can be applied to control switched reluctance motors designed to electric vehicles drive. The method may be effective especially in congested traffic. Nowadays, the urban traffic is characterized by frequent occurrence of traffic jams in which motor cars move at small speeds. The sources of supply for electric vehicles are mainly electrochemical batteries. Reduction of the maximum value of supply current allows to extend the service life of batteries and improved efficiency of the drive extends the vehicle range. Limitation of rms value of supply current limits losses in circuit of drive supply.