Admittance-Based Stability Analysis: Bode Plots, Nyquist Diagrams or Eigenvalue Analysis?

被引:94
作者
Fan, Lingling [1 ]
Miao, Zhixin [1 ]
机构
[1] Univ S Florida, Dept Elect Engn, Tampa, FL 33620 USA
关键词
Eigenvalues and eigenfunctions; Power system stability; Stability criteria; Admittance; Impedance; Circuit stability; Stability analysis; inverters; admittance; stability criteria; WIND;
D O I
10.1109/TPWRS.2020.2996014
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In the literature, Bode plots and Nyquist diagrams are used extensively in stability analysis for admittance-based models. In this letter, we demonstrate that eigenvalues obtained from the total admittance lead to accurate prediction of stability while Bode plots and Nyquist diagrams show limitations. A voltage source converter with weak grid interconnection is used as an illustrative example to demonstrate the pros and cons of the three methods applied to dq-frame admittance matrices.
引用
收藏
页码:3312 / 3315
页数:4
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