AC permanent-magnet switched reluctance motor

An AC permanent magnet switched reluctance motor, comprising:

• a stator;
• and
• a rotor,
• wherein the stator has multiple excitation salient pole pairs, which are fixed on a stator seat in a balanced way, all excitation salient pole pairs are mutually magnet-isolated, and each excitation salient pole pair is excited and controlled by an independent excitation coil;
• each excitation salient pole pair includes a C-SHAPED laminated iron core, two excitation coils, and two permanent magnet assemblies or two permanent magnets;
• the laminated iron core has two salient pole port faces that are opposite to each other, and the two excitation coils are each wound a periphery of a respective one of two parallel frames of the laminated iron core;
• each permanent magnet or permanent magnet assembly has two magnetic pole faces that cling to a laminated section of the laminated iron core;
• each permanent magnet is embedded into a respective gap of the laminated iron core, the two magnetic pole faces of each permanent magnet cling to a laminated section of the respective gap of the laminated iron core;
• each gap exists between a lateral side of each permanent magnet and the laminated iron core;
• a winding direction of each excitation coil is configured such that, when an excitation current is input into the excitation coil, (1) a direction of excitation flux generated by the laminated iron core is consistent with a direction of a permanent magnet flux of the corresponding permanent magnet assembly or the permanent magnet, and (2)
• the excitation flux forces closed permanent magnet flux to open, and imports the permanent magnet flux into a main loop of the excitation flux, forming a compound excitation magnetic potential on the port faces of the laminated iron core;
• the rotor includes a rotating shaft, a rotor support and multiple permanent magnets, a center of the rotor support is fixed with the rotating shaft, the multiple permanent magnets are fixed on the rotor support in a balanced way, and magnetic polarities of neighboring permanent magnets are different,
• when the rotating shaft rotates, magnet port faces of the multiple permanent magnets on the rotor support align with port faces of each excitation salient pole pair on the stator one by one;
• during alignment of each permanent magnet, the compound excitation magnetic potential on port faces of the corresponding excitation salient pole pair forms a shortest closed magnetic loop with the permanent magnet through an air gap.