Efficiency Improvement of Switched Reluctance Motor by Single-Pulse Control with Variable Excitation Period

Abstract

This paper proposes a single-pulse control method for improving the efficiency of switched reluctance motors. The proposed method has three excitation modes to vary the excitation interval according to the conduction angle reference value. Experiments were carried out with a real system to compare the efficiencies of the proposed method and the voltage-PWM control with a constant excitation period. The efficiency of the proposed method was a maximum of 13.2% higher in the low-medium speed and high load regions compared with the voltage-PWM control.