Understanding Switched-Flux Machines: A MMF-Permeance Model and Magnetic Equivalent Circuit Approach

Due to their particular structure, switched-flux permanent magnet machines have become a very interesting alternative for many applications. This is why some recent studies been focused in the understanding of operating mechanism these via MMF-permeance modelling. However, models that can be found literature make simplifications reduce accuracy when predicting performance machines. For example, are commonly not precise enough with wide slot, because influence modulator primary side machine neglected. In this article, analytical model developed 6/13 C-Core combination magnetic equivalent circuit and model. The based on field modulation principle. used explain flux focusing effect force generation A new concept PM harmonic efficiency ratio identify most efficient harmonics 2 precision validated 2D 3D Finite Element Method simulations, experimental measurements were obtained linear prototype. results show predict high level.