Low-heat coupling and non electromagnetic coupling dual-redundancy permanent-magnet synchronous motor between phase windings

The invention discloses a low-heat coupling and non electromagnetic coupling dual-redundancy permanent-magnet synchronous motor between phase windings. Two sets of mutually independent three-phase symmetrical windings are placed on a stator core. Two controllers independently supply power for the two sets of windings. The two sets of windings can work together or work respectively and independently. Each coil of each phase winding is a concentrated winding, and the end portions of the windings are not overlapped. Due to the fact that small teeth are arranged and heat resistant thermal insulation materials are placed on two sides of the small teeth, the phase winding is separated from an electric angle, therefore leakage mutual inductance which corresponds to leakage magnetic fields which are arranged between the phase windings and on end portions is small, and no inter-groove leakage inductance appears. Meanwhile, thermal coupling between the phase windings is low. An even number of coils of an even number ar