特高压交流电网建设进程对四川特高压直流与相关交流断面耦合关系的影响

Influence of Construction Process of UHVAC Power Grid on Coupling Relationship between Sichuan UHVDC and Related AC Section

随着特高压交流电网建设进程的不断深入及锦苏、复奉、溪浙三大特高压直流的建成,四川电网将形成交直流混联外送的格局。针对特高压直流闭锁后功率转移情况,并结合特高压交流电网的建设进程,分析与特高压直流具有较强耦合关系的交流断面,为四川电网的安全稳定运行提供指导。

With the construction process of ultra - high voltage （UHV） AC power grid and the completion of Jinsu, Fufeng and Xizhe HVDC transmission lines, Sichuan power grid will form a pattern of AC/DC hybrid power delivery. Aiming at the situa- tion of power transfer after UHV DC blocking and combined with the construction process of UI-IV AC power grid, the AC sec- tions which have a strong coupling relationship with UHV DC is analyzed, which provides guidance for the safe and stable op- eration of Sichuan power grid.