Characterization, numerical analysis and design of switched reluctance motor for improved material productivity and reduced noise

The material productivity and design certainty are becoming ever more important for a responsive motor manufacturer, and they can be improved by design optimization through more detailed analysis and simulation within manufacturing tolerance, in particular for a large and unconventional motor. Design by analysis and simulation of a switched reluctance motor is the subject of this paper, with numerical approaches that include magnetic equivalent-circuit analysis, finite element analysis and boundary element analysis. Modeling of geometric, magnetic, electric, mechanic and thermal concerns is presented, as well as an integrated and streamlined design and analysis approach that facilitates design iterations. The aspects of the study include: magnetization curves; controller characterization; system simulation; performance prediction; vibration modes and frequencies; radial magnetic forces; stresses, vibrations and noises; and heat distribution and transfer.