Electromagnetic force auxiliary fan sliding yaw device and method

The invention provides an electromagnetic force auxiliary fan sliding yawing device and method, and relates to the technical field of wind power generation equipment, the electromagnetic force auxiliary fan sliding yawing device comprises a yawing gear ring and a main rack, a plurality of yawing motors are installed on the side edge of the main rack and are in transmission connection with the yawing gear ring, the face, close to the yawing gear ring, of the main rack is a rack yawing face, and the side, close to the yawing gear ring, of the main rack is in transmission connection with the rack yawing face. An upper electromagnet is arranged on the machine frame yawing face, the face, close to the main machine frame, of the yawing gear ring is a gear ring yawing face, a lower electromagnet corresponding to the upper electromagnet is arranged on the gear ring yawing face, and a piezoelectric sensor and an air gap sensor are further arranged on the gear ring yawing face. During yawing, the upper electromagnet an