Types and Features of AC Synchronous Motors
AC synchronous motors are constant-speed drive motors whose rotor speed maintains a fixed proportional relationship with the power supply frequency. They are widely adopted in electronic instruments, modern office equipment, textile machinery and other fields. 1. Permanent Magnet Synchronous Motors Permanent magnet synchronous motors fall under the category of line-start permanent magnet synchronous motors. Their magnetic field system consists of one or more permanent magnets. Typically, magnetic poles embedded with permanent magnets matching the required number of poles are installed inside a squirrel-cage rotor fabricated via cast aluminum or welded copper bars. The stator structure resembles that of an…