描述

?UNITROL1020?UNS0119A-Z,V1?3BHE030579R0001 可以根據(jù)發(fā)電機輸出電壓的變化

無刷勵磁系統(tǒng)是一種不需要經(jīng)過滑環(huán)和炭刷的勵磁系統(tǒng)，?UNITROL1020?UNS0119A-Z,V1?3BHE030579R0001主要用于中小型三相同步發(fā)電機。它由電壓調(diào)節(jié)器對交流勵磁機的勵磁繞組進行勵磁，而勵磁機的電樞繞組產(chǎn)生的交流電經(jīng)旋轉(zhuǎn)整流器整流后，供給主發(fā)電機的磁場繞組進行勵磁。

無刷勵磁系統(tǒng)的優(yōu)點在于它能在危險工況下穩(wěn)定運行，是現(xiàn)代中小型電機和大型無刷勵磁系統(tǒng)的首選勵磁方式。其工作原理是，無刷勵磁發(fā)電機的軸端頭裝有一臺交流發(fā)電機，其轉(zhuǎn)子是發(fā)電繞組。發(fā)出的電流通過固定在發(fā)電機軸上的導(dǎo)線引導(dǎo)至固定在軸上的硅整流管，整流后的直流電直接進入轉(zhuǎn)子繞組，其中并沒有使用整流刷，因此被稱為無刷勵磁。

這種系統(tǒng)具有勵磁功率較小等特點，并且在電力術(shù)語中，?UNITROL1020?UNS0119A-Z,V1?3BHE030579R0001也被稱為使用旋轉(zhuǎn)整流器交流勵磁機勵磁功率單元的勵磁系統(tǒng)。

無刷勵磁系統(tǒng)的工作原理可以分為以下幾個步驟：

感應(yīng)電磁場：無刷勵磁機中的定子繞組通過外部電源提供直流電流，產(chǎn)生一個固定的磁場，這個磁場稱為勵磁磁場。

旋轉(zhuǎn)磁場：在轉(zhuǎn)子上安裝了永磁體或電磁繞組，當轉(zhuǎn)子開始旋轉(zhuǎn)時，它會在勵磁磁場中切割磁力線，從而在轉(zhuǎn)子中感應(yīng)出交流電勢。

整流供電：感應(yīng)出的交流電勢通過旋轉(zhuǎn)整流器整流后，變成直流電，然后供給主發(fā)電機的磁場繞組，使其產(chǎn)生磁場。

自動調(diào)節(jié)：無刷勵磁系統(tǒng)通常配備有自動電壓調(diào)節(jié)器，可以根據(jù)發(fā)電機輸出電壓的變化，自動調(diào)節(jié)勵磁電流的大小，從而保持輸出電壓的穩(wěn)定。

綜上所述，?UNITROL1020?UNS0119A-Z,V1?3BHE030579R0001無刷勵磁系統(tǒng)通過感應(yīng)電磁場、旋轉(zhuǎn)磁場、整流供電和自動調(diào)節(jié)等步驟，實現(xiàn)了對發(fā)電機的勵磁和電壓調(diào)節(jié)，從而保證了發(fā)電機的正常運行和輸出電壓的穩(wěn)定。

?UNITROL1020?UNS0119A-Z,V1?3BHE030579R0001 可以根據(jù)發(fā)電機輸出電壓的變化

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.

 

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Company Introduction:
Chengdu Sunshine Xihe Co., Ltd. specializes in one-stop procurement consulting for imported industrial spare parts, offering original equipment and professional discontinued parts services. We are committed to providing efficient and reliable automation solutions for our customers. Customer support fast responseThe network of partners spans all continentsGlobal partner networkAlways achieve more delivery, be it parts, service or speed



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