Dual rotor mutually coupled switched reluctance machine for wide speed operating range

A new dual rotor mutually coupled switched reluctance machine (DR-MCSRM) is proposed. The proposed machine has a magnetic circuit similar to the full pitched mutual coupled switched reluctance machine (FP-MCSRM) without short end windings. FP-MCSRMs have higher torque and power density, but they have longer end windings leading to unwanted copper loss. The construction of the proposed machine is similar to the merging version of the outer rotor and inner rotor FP-MCSRMs. An example machine is designed to meet specifications developed for automotive applications. A finite element model is developed and the machine is optimized to meet the performance targets. The machine performance is compared with a FP-MCSRM designed for the similar specifications.