AC servo motor through from analog to digital transition, digital control loop has been everywhere, a variety of high sexual Than the magnetic material is used in servo motors above, so that these
semiconductor devices, high-performance servo-specific model Block the use of the motor on the increasingly important. Summary technical line at home and abroad servo manufacturers and product
lines, combined with Changes in market demand, we can see below some of the latest trends.
High efficiency
While work in this area have long been working, but still need to continue to strengthen. Mainly including motor itself The high efficiency permanent magnetic materials such as performance improvement and a better magnet installation of structural design, also includes the drive system High efficiency technology, including the inverter drive circuit optimization, optimization of the movement acceleration and deceleration, regenerative braking and energy Feedback, and better cooling methods.
Direct drive
Including the use of direct-drive turntable disc motor linear motor servo drive and use a linear servo drive, due to the elimination of intermediate transmission error, thus achieving high-speed and high positioning accuracy. Linear Motor easy to change the shape of a straight line features can make use of the linear organization of various devices to achieve compact and lightweight.
Specialization, and diversification
While there are general-purpose servo-oriented product line, but for certain applications specially design and manufacture of servo systems abound. The use of magnetic materials of different properties,different shapes, different surface bonding structure (SPM) and embedded permanent magnet (IPM) motor rotor structures appear fragmented core structure, the use of technology in Japan, so that the production of permanent magnet brushless servo motors achieve high efficiency, high-volume and automated, and cause of the domesticmanufacturers.
Smaller and larger
Whether it is permanent magnet brushless servo motor or stepper motor are actively to the development of a smaller size, such as the 20, 28,35 mm diameter; also developing more power and size models, have
seen 500kW permanent magnet servo Motor to happen. Reflects the tendency of the development of the