Reactive power dynamic multi-objective optimization for multi-terminal AC/DC interconnected power systems under wind power fluctuation

In view of the reactive power coordination difficulties caused by reactive power strong coupling. The provincial power grids in the interconnected system formed by the multi-AC/DC transmission. Wind power channels under the conditions of large-scale long-distance transmission of wind power and other forms of renewable power generation. AC-DC hybrid power flow equation of the interconnected system including the AC-DC tie lines was studied in this paper, and on the basis of which the robust dynamic evolutionary optimization of the reactive power system in interconnected systems under fluctuated and uncertain wind power conditions was studied. thus, fast synergetic optimization of reactive power flow and tie line reactive power exchange between provincial power grids can be achieved. The analysis was made by taking four interconnected large-scale provincial power grids of Eastern Mongolia, Jilin, Liaoning and Shandong as an example. The simulation results demonstrate the effectiveness and superiority of the proposed reactive power dynamic multi-objective optimization method for interconnected power grids.