Method for controlling position-less sensor of bearing-less switched reluctance motor

The invention discloses a method for controlling a position-less sensor of a bearing-less switched reluctance motor, which belongs to the technical field of controlling bearing-less switched reluctance motors. The method comprises the following steps of: obtaining a real-time position angle according to the one-to-one corresponding relation between the inductances of an inductance raising area and an inductance falling area of a conduction phase main winding of the bearing-less switched reluctance motor through a method for querying an inductor-position table; and achieving the phase conversion control by comparing the real-time inductance of the main winding with the inductance of a phase conversion position. The method needs no additional hardware circuits, has a simple and feasible algorithm, can provide accurate position signals and phase conversion signals for the suspension and torque controls of the bearing-less switched reluctance motor, has very flexible controls, and improves the overall performance of the bearing-less switched reluctance motor.