服务热线 18660772233
0531-55536261
联系在线客服

直流无刷减速机的优缺点你知道吗?

来源:http://www.jnmcd.com 发布时间:2019-01-16 浏览:
直流无刷减速机具有响应速度快,起动转矩大,零速至额定转速额定转矩的特点。然而,直流电机的优点也是其缺点,因为直流电机在额定负载下会产生恒定的负载。瞬间的性能,电枢磁场和转子磁场必须保持在90°,这将需要碳刷和换向器。碳刷和换向器在电机旋转时产生火花和碳粉。
DC brushless reducer has the characteristics of fast response, large starting torque, zero speed to rated speed and rated torque. However, the advantage of DC motor is its disadvantage, because DC motor will produce constant load under rated load. Instantaneous performance, armature and rotor magnetic fields must be maintained at 90 degrees, which will require carbon brushes and commutators. Carbon brushes and commutators generate sparks and powders when the motor rotates.
因此,除了损坏部件外,碳刷和换向器的使用也受到限制。直流无刷减速机没有碳刷和换向器。它们免维护,坚固且广泛使用。但是,必须使用复杂的控制技术来控制直流电机的特性。
Therefore, in addition to damage parts, the use of carbon brushes and commutators is also limited. DC brushless reducer has no carbon brush and commutator. They are maintenance-free, robust and widely used. However, complex control techniques must be used to control the characteristics of DC motors.
当今半导体正在迅速发展,功率器件的开关频率更快,从而提高了驱动电机的性能。微处理器的速度也越来越快。可以将交流电机控制器置于旋转的两轴笛卡尔坐标系中,并正确控制交流电机的两个轴电流分量,以实现类似的直流电机控制,并可与直流电机相媲美。性能。
Semiconductors are developing rapidly nowadays, and the switching frequency of power devices is faster, which improves the performance of driving motors. Microprocessors are also becoming faster and faster. The AC motor controller can be placed in the rotating two-axis Cartesian coordinate system, and the two axis current components of the AC motor can be correctly controlled to achieve similar DC motor control, and can be comparable to the DC motor. Performance.
当转子极的数量固定时,改变定子旋转磁场的频率可以改变转子的转速。直流无刷减速机是同步电机加电子控制(驱动器),用于控制定子旋转磁场的频率,并将电机转子的速度反馈给控制中心进行重复校准,以达到特性接近直流电机的特性。
When the number of poles is fixed, the rotor speed can be changed by changing the frequency of the stator rotating magnetic field. DC brushless reducer is a synchronous motor plus electronic control (driver), which is used to control the frequency of stator rotating magnetic field, and feedback the speed of motor rotor to the control center for repeated calibration, in order to achieve characteristics similar to DC motor.
换句话说,当负载在额定负载范围内变化时,直流无刷电机可以控制电机转子保持一定的速度。
In other words, when the load changes within the rated load range, the DC brushless motor can control the motor rotor to maintain a certain speed.
以上信息是我们的山东微型电机整理发布希望对大家有所帮助我们的网站是:http://www.jnmcd.com
The above information is our Shandong micro-motor collation and publication hope to help you all on our website: http://www.jnmcd.com!
推荐新闻
  • 联系人:张经理
  • 手机:18660772233(微信同号)
  • 电 话:0531-55536261 / 0531-55536272
  • 邮 箱:911510021@qq.com
  • 地 址:山东济南市济南时代欧亚电子大厦一楼A111号
  • Copyright © 2018 济南美磁达电子有限公司 All Rights Reserved 诺商信息 网站地图 XML TXT  鲁ICP备18050301号-1

    鲁公网安备 37010502001057号