Electromagnetic design of a 5-kW, 10,000-rpm switched reluctance machine

In this paper a systematic procedure for designing a switched reluctance machine (SRM) is given. The process starts with specified torque, speed and DC bus voltage and ends with stator dimensions, rotor dimensions and stator winding details. It is divided into three parts - machine configuration where number of phases, stator and rotor poles are chosen, magnetic design where the machine dimensions are obtained, and electrical design where winding details are obtained. Finite element (FE) based magneto-statics analysis is used in the design. Improved procedures for rotor dimension selection and stator winding design are described. Finally the design is verified through numerical simulation, which uses machine characteristics obtained using magneto-statics analysis.