UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 可以根据发电机输出电压的变化

Description

 UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 可以根据发电机输出电压的变化

无刷励磁系统是一种不需要经过滑环和炭刷的励磁系统， UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001主要用于中小型三相同步发电机。它由电压调节器对交流励磁机的励磁绕组进行励磁，而励磁机的电枢绕组产生的交流电经旋转整流器整流后，供给主发电机的磁场绕组进行励磁。

无刷励磁系统的优点在于它能在危险工况下稳定运行，是现代中小型电机和大型无刷励磁系统的首选励磁方式。其工作原理是，无刷励磁发电机的轴端头装有一台交流发电机，其转子是发电绕组。发出的电流通过固定在发电机轴上的导线引导至固定在轴上的硅整流管，整流后的直流电直接进入转子绕组，其中并没有使用整流刷，因此被称为无刷励磁。

这种系统具有励磁功率较小等特点，并且在电力术语中， UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001也被称为使用旋转整流器交流励磁机励磁功率单元的励磁系统。

无刷励磁系统的工作原理可以分为以下几个步骤：

感应电磁场：无刷励磁机中的定子绕组通过外部电源提供直流电流，产生一个固定的磁场，这个磁场称为励磁磁场。

旋转磁场：在转子上安装了永磁体或电磁绕组，当转子开始旋转时，它会在励磁磁场中切割磁力线，从而在转子中感应出交流电势。

整流供电：感应出的交流电势通过旋转整流器整流后，变成直流电，然后供给主发电机的磁场绕组，使其产生磁场。

自动调节：无刷励磁系统通常配备有自动电压调节器，可以根据发电机输出电压的变化，自动调节励磁电流的大小，从而保持输出电压的稳定。

综上所述， UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001无刷励磁系统通过感应电磁场、旋转磁场、整流供电和自动调节等步骤，实现了对发电机的励磁和电压调节，从而保证了发电机的正常运行和输出电压的稳定。

 UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 可以根据发电机输出电压的变化

Brushless excitation system is a kind of excitation system that does not need to pass slip ring and carbon brush, UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 is mainly used for small and medium-sized three-phase synchronous generators. It is excited by the voltage regulator to the excitation winding of the AC exciter, and the alternating current generated by the armature winding of the exciter is rectified by the rotary rectifier, and the field winding of the main generator is excited.

The advantage of brushless excitation system is that it can operate stably under dangerous conditions, and it is the preferred excitation mode for modern small and medium-sized motors and large brushless excitation systems. The working principle is that the shaft end of the brushless excitation generator is equipped with an alternator, whose rotor is the generating winding. The current sent out is guided to the silicon rectifier tube fixed on the shaft through the wire fixed on the shaft, and the rectified direct current is directly into the rotor winding, where the rectifier brush is not used, so it is called brushless excitation.

This system has characteristics such as low excitation power, and in power terms, UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 is also referred to as an excitation system using a rotating rectifier AC exciter excitation power unit.

The working principle of brushless excitation system can be divided into the following steps:

Inductive electromagnetic field: The stator winding in a brushless exciter provides DC current through an external power supply, creating a fixed magnetic field, which is called the excitation field.

Rotating magnetic field: A permanent magnet or electromagnetic winding is installed on the rotor, and when the rotor begins to rotate, it cuts the magnetic force line in the exciting field, thereby sensing an AC potential in the rotor.

Rectifier power supply: the induced AC potential is rectified by the rotating rectifier, into direct current, and then supplied to the field winding of the main generator, so that it generates a magnetic field.

Automatic regulation: brushless excitation systems are usually equipped with automatic voltage regulators, which can automatically adjust the size of the excitation current according to the change of the output voltage of the generator, so as to maintain the stability of the output voltage.

In summary, the UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 brushless excitation system realizes the excitation and voltage regulation of the generator through the induction electromagnetic field, rotating magnetic field, rectifier power supply and automatic regulation, so as to ensure the normal operation of the generator and the stability of the output voltage.