交流異(yi)步(bu)電(dian)(dian)(dian)動(dong)機(ji)是一個(ge)電(dian)(dian)(dian)機(ji),轉速和負(fu)載(zai)(zai)連接電(dian)(dian)(dian)網的頻(pin)率之(zhi)比不(bu)是恒定的。也與負(fu)載(zai)(zai)的**變化。負(fu)載(zai)(zai)轉矩(ju)越*,轉子(zi)速度較低。異(yi)步(bu)電(dian)(dian)(dian)動(dong)機(ji)包括感應(ying)電(dian)(dian)(dian)機(ji)、雙饋異(yi)步(bu)電(dian)(dian)(dian)機(ji)和交流換向器電(dian)(dian)(dian)機(ji)。感應(ying)電(dian)(dian)(dian)動(dong)機(ji),使用*廣泛的情(qing)況(kuang)不(bu)會導致(zhi)誤解或混淆(xiao),一般(ban)可稱感應(ying)電(dian)(dian)(dian)動(dong)機(ji)異(yi)步(bu)電(dian)(dian)(dian)動(dong)機(ji)。