Topological circuit and control strategy for driving switched reluctance motor (srm)

A topological circuit for driving a switched reluctance motor (SRM), comprising:

• an SRM, a capacitor (C), M power switch bridge arms, and M K-phase inverters, M and K each being a positive integer, and K≥2, wherein
• the SRM has an N-phase winding structure, N=M×K;
• every K phases of windings form an independent set of symmetrical K-phase windings;
• and the symmetrical K-phase windings in each set of symmetrical K-phase windings are connected in a star configuration;
• two terminals of the capacitor (C) are respectively connected to a positive power terminal and a negative power terminal;
• positive input terminals of the M power switch bridge arms are connected to the positive power terminal;
• negative input terminals of the M power switch bridge arms are connected to the negative power terminal;
• and midpoints of the M power switch bridge arms are connected to neutral points of M sets of symmetrical K-phase windings in one-to-one correspondence;
• and
• positive input terminals of the M K-phase inverters are connected to the positive power terminal;
• negative input terminals of the M K-phase inverters are connected to the negative power terminal;
• and K output terminals of the M K-phase inverters are connected to lead-out terminals of the M sets of symmetrical K-phase windings in one-to-one correspondence.