输入功率 P=m,U11, CoS P, 定子铜损pan=m1 定子铁损pe=m16r 电磁功率Pn=P-pwn-po=m1l2 转子铜损Pa2=m2l2r2=m1l2z2 机械功率Pmn=m)1-S 72=m12 输出功率P2=PDme-pne-p mec3 输入功率 1 1 1 1 1 P = m U I cos  定子铜损 1 2 1 1 1 p m I r cu = 定子铁损 Fe m p m I r 2 = 1 0 电磁功率 sr P P p p m I em cu F e ' '2 2 = 1 − 1 − = 1 2 转子铜损 '2 '2 2 1 2 2 2 2 2 p m I r m I r cu = = 机械功率 '2 '2 2 1 2 2 2 2 1 1 r s s r m I s s P m I mec − = − = 输出功率 P2 = Pmec − pmec − pa d = Pmec − p 0