1. The obvious advantages of permanent magnet DC brushless motors. In many competitive fields, permanent magnet brushless DC motors have continuously replaced brushed DC motors and induction motors, and have been increasingly used widely.
2. The advancement of new high-performance permanent magnet materials technology, the advancement of power semiconductor devices and special control integrated circuits, and the emergence of new control strategies have promoted the progress of permanent magnet DC brushless motor technology.
3. The requirements of various industries and industries for energy saving and speed control are increasingly urgent, especially in the field of industrial drives and household appliances. Energy saving and high efficiency are environmental protection requirements. Efficiency indicators have gradually become market access conditions, and have even been accepted as national standards, international standards. Standards have led designers to adopt and apply DC brushless motors with higher efficiency.