Comparison of two control strategies regarding vibration criterion for switched reluctance machine
Abstract
SRM presents many advantages such robustness, simple manufacturing and reliability. However, it is characterized by torque ripples and acoustic noise that are delicate and difficult to assess. In this paper, authors propose an analytical electromagnetic-mechanical model able to evaluate vibration in the stator structure of an 8/6 SRM. This model was implemented and wedged experimentally relative to the actual behavior of the machine. Next, two current control strategies "regular and adaptive hysteresis current controller" are proposed. Then the proposed electromagnetic-mechanical model is used to compare and evaluate their impacts in the vibration of the stator structure. The results show that adaptive current control with a fixed switching frequency presents the lower vibration level.