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山东无刷电机结构特点介绍

来源:http://www.jnmcd.com 发布时间:2020-07-10 浏览:
无刷电机由电机和电子驱动器两部分组成。电动机部分结构和经典交流水磁同步电动机相似。其定子上有多相绕组,转子上镶有水久磁铁,由于运行的需要,还要有转子位置传感器。位置传感器检测出转lf磁场轴线和定子相绕组轴线的相对位置,决定各个时刻相绕组的通电状态,即决定电子驱动器多路输出开关的开/断状态,接通/断开电动机相应的相绕组。
Brushless motor is composed of motor and electronic driver. The structure of the motor is similar to that of the classical AC hydro magnetic synchronous motor. The stator has multiphase winding and the rotor is inlaid with permanent magnet. Due to the need of operation, there is also a rotor position sensor. The position sensor detects the relative position between the axis of the rotating lf magnetic field and the axis of the stator phase winding, and determines the power on state of the phase winding at each time, that is, the on / off state of the multi output switch of the electronic driver, and the corresponding phase winding of the motor is connected / disconnected.
因此,无刷电动机可看成是由专门的电子逆变器驱动的有位置传感器反馈控制的交流同步电动机。从另一角度看,无刷电动机可看成是一个定转子倒置的直流电动机。 一般直流电动机的电枢绕组在转子卜,永磁体则在定子上。
Therefore, the brushless motor can be regarded as an AC synchronous motor driven by a special electronic inverter with position sensor feedback control. From another point of view, the brushless motor can be regarded as a DC motor with the stator and rotor inverted. Generally, the armature winding of DC motor is in the rotor, and the permanent magnet is on the stator.
有刷电动机的所谓换向,实际上是其相绕组的换相过程。它是借助于电刷和换向器来完成的。
The so-called commutation of brush motor is actually the commutation process of its phase winding. It is accomplished by means of brushes and commutators.
而无刷电动机制相绕组的换相过程则是借助于位置传感器和逆变器的功率开关来完成的。无刷电动机以电子换向代替了普通直流电动机的机械换同,具有普通直流电动机相似的线眭机械特性和线性转矩/电流特性。
The commutation process of BLDCM phase winding is accomplished by the position sensor and the power switch of inverter. Brushless motor (BLDCM) uses electronic commutation to replace the mechanical exchange of ordinary DC motor. It has similar mechanical characteristics and linear torque / current characteristics of ordinary DC motor.
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