应用复系数滤波器的不平衡电网电压锁相方法
谢门喜,朱灿焰,杨勇

Synchronous Reference Frame PLL with Complex Coefficient Filter Under Unbalanced Three-Phase System
Menxi Xie,Canyan Zhu,Yong Yang
图3 负序分量衰减与$\omega_{p}$的函数
Fig.3 Negative sequence attenuation as a function of $\omega_{p}$