伊人久久大香线蕉影院,伊人久久大香线蕉成人,国模吧无码一区二区三区,国产电影一区二区三区

您好!歡迎訪問(wèn)揚(yáng)州海弘機(jī)電設(shè)備有限公司網(wǎng)站!
始于2011年,專(zhuān)注發(fā)電機(jī)、柴油發(fā)電機(jī)組生產(chǎn)以質(zhì)量求生存,以科技求發(fā)展
全國(guó)咨詢(xún)熱線:0514-86829289
聯(lián)系我們

【 微信掃碼咨詢(xún) 】

0514-86829289

18901444789

同步發(fā)電機(jī)轉(zhuǎn)子的勵(lì)磁 Excitation of synchronous generator rotor

作者:admin 瀏覽量:31 來(lái)源:本站 時(shí)間:2024-12-02 16:59:22

信息摘要:

發(fā)電機(jī)的形式很多,但其工作原理都基于電磁感應(yīng)定律和電磁力定律。因此,其構(gòu)造的一般原則是:用適當(dāng)?shù)膶?dǎo)磁和導(dǎo)電材料構(gòu)成互相進(jìn)行電磁感應(yīng)的磁路和電路,以產(chǎn)生電磁功率,達(dá)到能量轉(zhuǎn)換的目的。發(fā)電機(jī)的分類(lèi):直流發(fā)電機(jī)、交流發(fā)電機(jī)、同步發(fā)電機(jī)、異步發(fā)電機(jī)(很少采用);交流發(fā)電機(jī)還可分為單相發(fā)電機(jī)與三相發(fā)電機(jī)。

發(fā)電機(jī)的形式很多,但其工作原理都基于電磁感應(yīng)定律和電磁力定律。因此,其構(gòu)造的一般原則是:用適當(dāng)?shù)膶?dǎo)磁和導(dǎo)電材料構(gòu)成互相進(jìn)行電磁感應(yīng)的磁路和電路,以產(chǎn)生電磁功率,達(dá)到能量轉(zhuǎn)換的目的。

發(fā)電機(jī)的分類(lèi):

直流發(fā)電機(jī)交流發(fā)電機(jī)、同步發(fā)電機(jī)、異步發(fā)電機(jī)(很少采用);交流發(fā)電機(jī)還可分為單相發(fā)電機(jī)三相發(fā)電機(jī)。

  所謂勵(lì)磁即是向同步發(fā)電機(jī)轉(zhuǎn)子提供直流電使其產(chǎn)生直流電磁場(chǎng)的過(guò)程。同步發(fā)電機(jī)轉(zhuǎn)子凹槽內(nèi)的線圈就是由稱(chēng)做勵(lì)磁機(jī)的一個(gè)專(zhuān)門(mén)的設(shè)備為其供以直流電形成直流磁場(chǎng)的。早期的發(fā)電機(jī)是采用單獨(dú)的勵(lì)磁機(jī)給轉(zhuǎn)子線卷提供直流電的系統(tǒng)龐大而復(fù)雜。隨著技術(shù)的進(jìn)步現(xiàn)代同步發(fā)電機(jī)都是將發(fā)電機(jī)與勵(lì)磁機(jī)組裝在一起構(gòu)成一個(gè)完整的發(fā)電機(jī)。

  勵(lì)磁機(jī)其實(shí)就是個(gè)小發(fā)電機(jī)它的工作原理與同步發(fā)電機(jī)一樣。所不同的是它的定子線圈和轉(zhuǎn)子線圈所起的作用與同步發(fā)電機(jī)--主發(fā)電機(jī)正好相反;固定在主發(fā)電機(jī)定子旁的勵(lì)磁機(jī)的定子線圈迫以直流電形成直流磁場(chǎng),而安裝在主發(fā)電機(jī)轉(zhuǎn)子軸上的勵(lì)磁機(jī)的轉(zhuǎn)子線圈成為輸出電動(dòng)勢(shì)的電樞。勵(lì)磁機(jī)的轉(zhuǎn)子與定子內(nèi)壁之間也是保持著小而均勻的間隙。這也稱(chēng)為旋轉(zhuǎn)電樞式結(jié)構(gòu)的無(wú)刷同步發(fā)電機(jī)。安裝在主發(fā)電機(jī)定子旁的勵(lì)磁機(jī)定子線圈的直流電是由主發(fā)電機(jī)定子線圈即電樞的部分輸出電壓經(jīng)整流后而得到的。與主發(fā)電機(jī)轉(zhuǎn)子同軸安裝的勵(lì)磁機(jī)轉(zhuǎn)子線圈在其定子線圈產(chǎn)生的磁場(chǎng)內(nèi)旋轉(zhuǎn)、切割磁力線所產(chǎn)生的感應(yīng)電動(dòng)勢(shì),經(jīng)同軸安裝在它旁邊的整流器也就是旋轉(zhuǎn)整流器變成直流電流輸?shù)街靼l(fā)電機(jī)的轉(zhuǎn)子線圈使其產(chǎn)生直流轉(zhuǎn)子磁場(chǎng)。從而達(dá)到了對(duì)主發(fā)電機(jī)轉(zhuǎn)子線圈勵(lì)磁的要求。

There are many forms of generators, but their working principles are based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general principle of its construction is to use appropriate magnetic and conductive materials to form magnetic circuits and circuits that induce each other electromagnetically, in order to generate electromagnetic power and achieve energy conversion.

Classification of generators:

DC generator, AC generator, synchronous generator, asynchronous generator (rarely used); AC generators can also be divided into single-phase generators and three-phase generators.

The so-called excitation refers to the process of providing direct current to the rotor of a synchronous generator to generate a direct current electromagnetic field. The coil inside the rotor groove of a synchronous generator is supplied with direct current by a specialized device called an exciter to form a direct current magnetic field. Early generators were large and complex systems that used a separate exciter to provide direct current to the rotor coils. With the advancement of technology, modern synchronous generators assemble the generator and exciter together to form a complete generator.

The exciter is actually a small generator, and its working principle is the same as that of a synchronous generator. The difference is that its stator coils and rotor coils play the opposite role as a synchronous generator - the main generator; The stator coil of the exciter fixed next to the stator of the main generator is forced to form a DC magnetic field with DC electricity, while the rotor coil of the exciter installed on the rotor shaft of the main generator becomes the armature for outputting electromotive force. There is also a small and uniform gap between the rotor and stator inner wall of the exciter. This is also known as a brushless synchronous generator with a rotating armature structure. The direct current of the excitation machine stator coil installed next to the main generator stator is obtained by rectifying the output voltage of the armature of the main generator stator coil. The excitation machine rotor coil installed coaxially with the main generator rotor rotates within the magnetic field generated by its stator coil, and the induced electromotive force generated by cutting magnetic field lines is converted into direct current through the rectifier installed coaxially next to it, that is, the rotating rectifier, and transmitted to the rotor coil of the main generator to generate a direct current rotor magnetic field. Thus achieving the requirement for excitation of the main generator rotor coil.


在線客服
聯(lián)系方式

熱線電話

18901444789

上班時(shí)間

周一到周五

公司電話

0514-86829289

二維碼
最近免费中文字幕中文高清 | 国产 校园 另类 小说区| 亚洲熟女综合一区二区三区| 无码欧亚熟妇人妻AV在线外遇 | 国语自产偷拍精品视频偷拍| 么公的好大好硬好深好爽视频| 午夜DJ在线观看高清在线视频WWW| 国产精品自在线拍国产| 免费无码高潮流白浆视频| 成 人影片 免费观看在线| 高清成人爽A毛片免费| 野狼第一精品社区| 亚洲av无码乱码国产麻豆| 亚洲成a人片在线观看无码专区| 一区二区国产高清视频在线| 亚洲精品欧美二区三区中文字幕| 中文字幕无码日韩中文字幕| 欧美精欧美乱码一二三四区| 丝袜足控一区二区三区| 国产99视频精品免视看7| 欧美一区二区三区久久综| 又湿又紧又大又爽a视频| 中韩好看的国产大片| 国产野战无套AV毛片| 久久精品国产亚洲AV不卡| 国产精一品亚洲二区在线播放 | 漂亮人妻洗澡被公强 日日躁| 国产成人无码AV片在线观看| 伊人精品无码一区二区三区电影| 久久久久国产精品| 欧美成人午夜精品久久久| 成人免费视频一区二区| VA在线看国产免费| 国产成人 综合 亚洲欧洲| 国产精品无码久久AV嫩草 | 国产色秀视频在线播放| 国产成人无码av在线播放dvd| 色欲av伊人久久大香线蕉影院| 我和岳乱妇三级高清电影| 一区二区三区鲁丝不卡| 日产精品卡一卡二卡三的概述|