Admittance-Based Stability Analysis: Bode Plots, Nyquist Diagrams or Eigenvalue Analysis?
Admittance-Based Stability Analysis: Bode Plots, Nyquist Diagrams or Eigenvalue Analysis?
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基于导纳的稳定性分析:波特图、奈奎斯特图还是特征值分析?
DOI:
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发表时间:
2020
影响因子:
6.6
通讯作者:
Zhixin Miao
中科院分区:
文献类型:
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作者:
Lingling Fan;Zhixin Miao
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 <inline-formula><tex-math notation="LaTeX">$dq$</tex-math></inline-formula>-frame admittance matrices.