Abstract
This paper presents two novel three-phase modular SRMs (MSRMs) with the same segmented E-shaped stator modules and different rotor topologies, namely, segmental rotor and conventional rotor. The basic topologies and simplified equivalent magnetic circuit (EMC) are presented first. The static electromagnetic characteristics of two MSRMs such as flux distribution, phase flux linkage and inductance, electromagnetic torque, and so on, are computed and compared by 3D finiteelement analysis. Then the dynamic performances including steady-state and transient operations of two MSRM drives are evaluated and compared. Finally, two MSRM prototypes with segmental rotor and conventional rotor are manufactured and tested for experimental verification and comparison. The experimental results of static flux linkage, steady state and transient performances of two MSRM drives are presented and compared, which verify the analytical EMC model, FEA and the corresponding Matlab/Simulink-based predictions.
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