Effect of Objective Function Formulation on Static and Operating Parameters of a Switched Reluctance Motor After Optimization of Magnetic Circuit Shape

Abstract

The article presents a comparison of two optimization methods aimed at the linearization of electromagnetic torque on rotor position angle in a two-phase switched reluctance motor (SRM). To optimize the shape of the SRM magnetic circuit, two objective functions were used, dependent on average, minimum and maximum values, and standard deviation electromagnetic torque. For computations, Matlab software was used along with the GAOT library. Parallel computations were carried out using the HTCondor environment. Optimization results were assessed by comparing the electromagnetic torque waveforms of the obtained SRM designs at different points of the drive operation. As a result of the research, additional criteria for assessing the quality of the drive in terms of pulsation of the electromagnetic torque are proposed.

Keywords

• cost function
• magnetic circuits
• optimization
• variable speed drives
• torque
• switched reluctance motor