Analysis and Design of Self-Started Two-Phase Switched Reluctance Motor

This paper describes the analysis and design procedure of C core switched reluctance motor (SRM) topology for the efficient, low acoustic noise, low cost, and wide speed application. Initially, the design procedure for the C core SRM is discussed. Then after, the advantages of the two-phase and C core topology are illustrated by the comparative analysis using the 2D finite element method (FEM) for the conventional SRM topology such as four phases 8/10 (4P-CSRM), conventional two-phase SRM (2P-CSRM), and the two-phase C core SRM (2P-CCSRM). A novel extended rotor with C core stator (2P-ECCRM) geometry is developed to make the two-phase C core SRM self-started. The flux routes are shorter in the suggested topology, resulting in a lesser magnetomotive force that lowers losses. Depending upon the direction of rotation, two different structures are proposed. The static and dynamic behavior of the proposed 2P-ECCSRM is analyzed by 2D FEM analysis. The novel 2P-ECCSRM is compared to a 2P-CSRM, and conventional C core two-phase SRM (2P-CCSRM). Simulated results verify the topology advantages such as high efficiency, low losses, and self-starting ability, over the 2P-CSRM and 2P-CCSRM.