Zb=rb+jxb

Rb=dtPk.Udm^2/Sdm^2 ;Xb=Up%.Udm^2/100.Sdm

Yb=Gb+jBb

Gb=dtPo/Udm^2 ;Bb=dtQo/Udm^2

dtSo=dtPo+jdtQo=dtPo+j.Io%.Sdm/100

dtScu=dtPcu+jdtQcu=dtPk(S/Sdm)^2+j.Uk%.S^2/100.Sdm

3cuonday : thayS=S(t),S(c)..

dtPk(c)=0.5(dtP(c-t)+dtP(c-h)-dtP(t-h))

rb(c)=dtP(c).(Udm(c)/Sdm)^2 ;rb(t)=dtP(t).(Udm(c)/Sdm)^2

Uk%(c)=0.5(Uk%(c-t)+Uk%(c-h)-Uk%(t-h))

Xb(c)=Uk%(c).Udm(c)^2/Sdm ; xb(t)=Uk%(t).Udm(c)^2/Sdm

Tungau :

dtPk(c-h)=dtPk'(c-h)(Sdm/Stc)^2=dtPk'(c-h)/α^2

Uk%(c-h)=Uk'%(c-h)/α