Method for improving saliency ratio of synchronous reluctance machine

The invention relates to a method for improving the saliency ratio of a synchronous reluctance machine (SynRM). The method is based on the inherent stator and rotor structure parameters of SynRM, a saliency ratio calculation formula is obtained directly according to the equivalent d-axis and q-axis magnetic circuits of SynRM, the relational expression between the saliency ratio and a structure parameter to be optimized of the SynRM is obtained according to the saliency ratio calculation formula, and a higher saliency ratio is obtained by adjusting the value range of the structure parameter. Compared with a finite element method, by adopting the method of the invention, the computer memory resource occupied can be greatly reduced, the difficulty in mathematical operation is lowered, the saliency ratio of SynRM is improved significantly, and the inherent structure parameters of SynRM can be optimized.