Electrical dissecting method of AC branch Part two Dissection of phase-shifter's branch

Under the electricity market environment, ancillary service assessment method of power flow control emphasizes on the applications of economics laws instead of electrical characters. Referring to the idea of ordinary AC branch dissection, this paper constructs three kinds of electrical dissecting methods about AC phase-shifter's branches. By these methods, electrical characters and quantities of different sources and flows along different dissected phase-shifter's sub-branches can be grasped. Dissected phase-shifter's sub-branches of one phase-shifter's branch are electrically equivalent to the original one and strictly satisfy various principles and laws of electric power network. Examples show that the methods are correct and simple, which can not only provide accurate electrical information to assess ancillary services of phase-shifters, but also provide useful reference to AC branch dissection with other power flow controllers.