An optimal power flow algorithm of AC/DC hybrid power system considering precise converter power losses and voltage-droop control is proposed. Based on the generalized model of voltage source converter(VSC)stations that take into account the converter power losses

an optimal power flow mathematical model of AC/DC power system with VSC based multi-terminal DC(VSC-MTDC)networks is developed. The effects of different control strategies of VSC stations on the setting of optimal variables and equality constraints are deduced in detail. Aiming at the “coupling relationship” problem between the AC-side power injection and the converter power loss of droop-control converters

an iterative calculating method for the AC-side active power of voltage-droop converters is proposed. Moreover

on the basis of analyzing the construction of Jacobian matrix considering various control strategies

the primal-dual interior point method is used to solve the optimal power flow model. Finally

the modified IEEE 30-bus test system is made use of for case studies of the optimal power flow algorithm's validity

accuracy and versatility.