海上直驱风电经柔直并网系统的次/超同步振荡特性分析
张志强, 李秋彤, 余浩, 陈鸿琳, 孙海顺

Analysis of Sub/Super-Synchronous Oscillation of Direct-Drive Offshore Wind Power Grid-Connected System via VSC-HVDC
ZHANG Zhiqiang, LI Qiutong, YU Hao, CHEN Honglin, SUN Haishun
图3 特征模式λ1, 2λ3, 4右特征向量风场及柔直电流罗盘图
Fig.3 Compass diagram of right eigenvector of λ1, 2 and λ3, 4 with respect to current of wind farm and VSC-HVDC