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电机是靠什么起动的

来源:/ 发布时间:2019-12-07 浏览:
  微型电机是靠什么起动的?肯定有朋友会说用电啊,这里说的靠什么启动的意思是电机启动的原理是什么,接下来我们对一下几种电机的启动方式给大家详细的介绍一下。
山东微型电机,山东无刷电机
  How does the motor start? I'm sure some friends will say that electricity is used. What starting means is the principle of motor starting. Next, we'll introduce the starting methods of several motors in detail.
  直流电机:
  DC motor:
  直流电机分类很多常用的有:永磁式、串极式、自激式、它励式和复励式等几种。电机的基本结构就是由产生磁场的定子线圈和产生动力的转子上面的电枢线圈及换向器组成的电气系统。
  There are many common types of DC motor: permanent magnet type, series pole type, self excitation type, other excitation type and compound excitation type. The basic structure of a motor is an electrical system composed of a stator coil that generates a magnetic field and an armature coil and a commutator on the rotor that generates power.
  定子线圈在通电后也称励磁(永磁电机例外),会产生N、S极的电磁场,转子的电枢线圈是通过换向器获取电流,通电的导体会在磁场中产生磁场力,根据左手定则就知道它的受力方向,带动转子旋转并通过换向器给电枢线圈的通过磁场的两个有效边施加不同极性的直流电,使电机连续运转。
  After the stator coil is energized, it is also called excitation (except for permanent magnet motor), which will generate N and S pole electromagnetic fields. The armature coil of the rotor obtains current through the commutator, and the energized conductor will generate magnetic field force in the magnetic field. According to the left-hand rule, it will know its force direction, drive the rotator to rotate and apply different polarity to the two effective sides of the armature coil through the magnetic field through the commutator The direct current of makes the motor run continuously.
  交流电机:可分为异步电动机(单相电动机,三相鼠笼式和三相绕线式电动机 )和同步电动机两大类。
  AC motor: it can be divided into two categories: asynchronous motor (single-phase motor, three-phase squirrel cage motor and three-phase wound motor) and synchronous motor.
  异步电动机的主要结构就是定子和转子绕组(鼠笼式的就是转子铁芯里面的鼠笼,绕线式就是转子铁芯里面绕组线圈)启动原理就是;通电的定子线圈产生交变的电磁场,封闭的定子线圈通过切割电磁线产生感应电流,感应电流在封闭的导体中切割磁力线再产生电磁力带动电动机转子转动,使电能转换为机械能。
  The main structure of asynchronous motor is the stator and rotor winding (squirrel cage is the squirrel cage in the rotor core, winding is the winding coil in the rotor core) starting principle is: the energized stator coil generates alternating electromagnetic field, the closed stator coil generates induced current by cutting the electromagnetic line, and the induced current cuts the magnetic line in the closed conductor to generate electricity The magnetic force drives the motor rotor to rotate, so that the electrical energy can be converted into mechanical energy.
  同步电动机启动,同步电动机主要结构是定子线圈和转子上面的励磁线圈及阻尼环,还有导电集电环。同步电动机是没有启动力矩的,它是异步启动同步运行的,也就是利用电动机转子上面的阻尼环(相当于异步电动机的鼠笼)来产生启动力矩,把电动机拖动到亚同步转速时候,在给励磁线圈通入直流励磁电流,使转子的磁极与定子线圈磁极相吸,使电动机运转。
  When the synchronous motor is started, the main structure of the synchronous motor is the excitation coil and damping ring on the stator coil and rotor, as well as the conductive collector ring. Synchronous motor has no starting torque, it is asynchronous starting synchronous operation, that is to say, the damping ring (equivalent to squirrel cage of asynchronous motor) on the motor rotor is used to generate starting torque, when the motor is dragged to subsynchronous speed, DC excitation current is applied to the excitation coil to make the magnetic pole of rotor and stator coil attract each other and make the motor run.
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