The Development Trend Of Servo Motor
The development trend of servo motor
The development of the servo motor system has undergone a process from hydraulic to electrical. The electrical servo system is divided into a direct current (DC) servo system and an alternating current (AC) servo system according to the type of motor being driven. AC servo system according to its use of the drive motor type can be divided into permanent magnet synchronous (SM type) motor AC servo system and induction asynchronous (IM) motor AC servo system.
As the DC servo motor mechanical structure is complex, maintenance workload, including brush, commutator, etc. has become the bottleneck of the development of DC servo drive technology. With the micro-processing technology, the maturity of high-power power electronics technology and the development of electrical permanent magnet materials and cost reduction, AC servo system has developed by leaps and bounds and will gradually replace the DC servo system.
AC servo motor as a high-end precision motor control parts, the market demand will grow steadily, nearly 5 years, its application prospects will be very good.
Dedicated servo motor market demand can not be ignored
For the specific application of the customer, due to its special technical and cost indicators, universal servo products (including imported products) is difficult to meet the requirements, which requires tailor-made, in the original servo motor driver embedded user-specific motion control function, Greatly reduce product costs. These typical industry customers have a certain amount of demand, while requiring a higher reliability. Beijing and Lee Motor Technology Co., Ltd. digital servo products in textile equipment, printing equipment, elevator equipment, robots and other industries have mature applications.
Intelligent servo motor will be widely used
In the general servo drive on the basis of the addition of some PLC and motion control functions, coupled with its own network communication function, the formation of a separate single-axis motion controller, independent of a certain degree of motion control functions, such as: point to point positioning , Can be widely used in automated production lines and other applications.
Domestic servo motor design and production technology has been tending to improve, mainly to the standardization, serialization, large-scale direction, only a certain size in order to have high reliability and low price and competitive products. But the domestic servo motor full digital drive technology is still relatively backward, mainly limited to the lack of practical motor digital control algorithm and high reliability of the power module, which greatly limits the promotion of domestic servo motor.
