Sensitivity Analysis for Multi-Objective Optimization of Switched Reluctance Motors

Abstract

The main issue of the switched reluctance motor (SRM) is its noise and vibration caused by high torque ripples on the rotor’s shaft. Many methods have been developed for improving the torque characteristic of the SRM. For example, design optimization is one of the promising approaches to the noise and vibration reduction of the SRM. Particularly, topology optimization (TO) of the stator and rotor can be highly beneficial to addressing the torque ripple issue. However, the TO of the SRM appears to be computationally demanding. To overcome this issue, this study proposes a method aiming to reduce the computational complexity of the TO through the reduction of the design space. Particularly, this paper presents a sensitivity analysis of a list of unique design parameters of the SRM and their influence on the average torque of the motor and the torque ripple of the motor. By applying the sensitivity analysis, the design space of the TO could be reduced, leading to a considerable decrease in the TO computational burden. Additionally, valuable conclusions on the geometrical parameters’ influences on the SRM torque and torque ripple have been drawn.

Design and Multi-Objective Optimization of a Composite Cage Rotor Bearingless Induction Motor

“…The optimization flowchart is shown in Figure 11. First, based on the analysis of the structure and mathematical model of the CCR-BIM motor, the objective parameters to be optimized are determined based on Equations ( 18) and (19), and the range of each parameter is given. Second, the sensitivity of the objective parameters is analyzed based on FEM, then the optimized parameters are selected.…”

“…In this article, the sensitivity analysis method is utilized to determine the level of the optimization parameters. The calculation equation of the sensitivity parameters is as follows [19,20]:…”

Design, Modelling and Optimization of a High Power Density Axial Flux SRM with Reduced Torque Ripple for Electric Vehicles

“…SRMs possess several merits compared with other electric machines, especially permanent magnet synchronous machines (PMSMs). A rare earth-free structure, wide power-speed range, simple structure and high durability are among the advantages of SRMs [1,2]. Consequently, SRMs have been designed to be used in a wide range of applications, namely, electric vehicles [3], electric bikes [4], electric aircraft [5], and wind turbines [6].…”