电力系统自动化2017，Vol.41Issue(22)：48-55,8.DOI:10.7500/AEPS20161231001
计及换流器损耗与电压下垂控制的交直流系统最优潮流算法
Optimal Power Flow Algorithm for Hybrid AC/DC Power Systems Considering Power Loss of Converter and Voltage-droop Control
摘要
Abstract
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.关键词
交直流系统/最优潮流/多端柔性直流/换流器损耗/电压下垂控制Key words
AC/DC power system/optimal power flow/voltage source converter based multi-terminal DC (VSC-MTDC)/converter power losses/voltage-droop control引用本文复制引用
和敬涵,李智诚,王小君,韩悦..计及换流器损耗与电压下垂控制的交直流系统最优潮流算法[J].电力系统自动化,2017,41(22):48-55,8.基金项目
This work is supported by National High Technology Research and Development Program of China (863 Program) (No.2015AA050101).国家高技术研究发展计划(863计划)资助项目(2015AA050101). （863 Program）
