Variable operating condition stator permanent magnetic field enhanced hybrid excitation motor and driving control method therefor

• Main Authors: Xiaoyong Zhu, Shiyue Zheng, Lei Xu, Danchen Xu, Xiaohua Zang, Chao Zhang
• Format: Patent
• Language: English
• Published: 13.12.2023
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

Disclosed in the present invention are a variable operating condition stator permanent magnetic field enhanced hybrid excitation motor and a driving control method therefor. The variable operating condition stator permanent magnetic field enhanced hybrid excitation motor comprises a stator (1), an excitation winding (2), a permanent magnet a (3), a permanent magnet b (4), a permanent magnet c (5), a permanent magnet d (6), a rotor (7), an armature winding a (8), an armature winding b (9), and an air gap (10). The stator (1) is of a stator module structure in the shape of Chinese character 艹, and a motor power converter is formed by four H bridges, wherein the inlet and outlet ends of the excitation winding (2) are respectively connected to center points of bridge arms of an H bridge, and the inlet and outlet ends of a three-phase winding are respectively connected to center points of bridge arms of an H bridge to form an open winding structure. The H bridge of the excitation winding (2) is connected in series to an open winding structure bus of the three-phase winding, every three bridge arms of the open winding structure form a group, and a switch transistor TTS is provided between two group. The present invention can realize multiplication adjustment of the air gap magnetic field, and improves the power density of the motor.