FBM242電纜P0916FJ

阻電機(jī)的構(gòu)造

其中兩個(gè)環(huán)短路。電機(jī)作為單相感應(yīng)電機(jī)工作，直到定子與單相電源對(duì)齊。離心傳輸分離輔助繞組，直到電機(jī)輸出接近大同步速度。通過主繞組操作，電機(jī)像單相電機(jī)一樣加速。

一旦電機(jī)速度接近同步速度，轉(zhuǎn)子就會(huì)傾向于在磁阻小的位置自行連接，從而產(chǎn)生扭矩。結(jié)果，轉(zhuǎn)子同步拖動(dòng)。為了獲得適當(dāng)?shù)男?，?fù)載慣性保持在可接受的范圍內(nèi)。感應(yīng)轉(zhuǎn)矩在同步時(shí)會(huì)消失，但由于同步磁阻時(shí)的轉(zhuǎn)矩，轉(zhuǎn)子將保持同步。

2.磁阻電機(jī)的優(yōu)缺點(diǎn)

優(yōu)勢(shì)：

（1） 不需要直流電源。

（2） 特性穩(wěn)定

（3）維護(hù)較少

（4） 熱量少

（5） 無磁鐵

（6） 速度控制

弊：

1）效率較低

2）功率因數(shù)差

3） 變頻調(diào)速

4）這些電機(jī)的容量較小，無法驅(qū)動(dòng)負(fù)載

5）需要較少的慣量轉(zhuǎn)子。

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