Nonlinear Transient Stability Analysis of Phased-Locked Loop Based Grid-Following Voltage Source Converters Using Lyapunov’s Direct Method

2021 ◽  
pp. 1-1
Author(s):  
Milad Zarif Mansour ◽  
Si Phu Me ◽  
Sajjad Hadavi ◽  
Babak Badrazadeh ◽  
Alireza Karimi ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Transient Stability ◽  
Direct Method ◽  
Voltage Source ◽  
Voltage Source Converters ◽  
Lyapunov’S Direct Method ◽  
Nonlinear Transient ◽  
Transient Stability Analysis

scholarly journals Direct Method-Based Transient Stability Analysis for Power Electronics-Dominated Power Systems

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Yanbo Che ◽  
Zihan Lv ◽  
Jianmei Xu ◽  
Jingjing Jia ◽  
Ming Li
Keyword(s):  
Stability Analysis ◽  
Power Systems ◽  
Power Electronics ◽  
Transient Stability ◽  
Direct Method ◽  
System Modeling ◽  
System Stability ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Transient Stability Analysis

With the extensive application of power electronics interfaced nonsynchronous energy sources (NESs) in modern power systems, the system stability especially the transient stability is prominently deteriorated, and it is crucial to find a comprehensive and reasonably simple solution. This paper proposes a direct method-based transient stability analysis (DMTSA) method which concludes the key steps as follows: (1) the system modeling of Lyapunov functions using mixed potential function theory and (2) the stability evaluation of critical energy estimation. A voltage source converter- (VSC-) based HVDC transmission system is simulated in a weak power grid to validate the proposed DMTSA method under various disturbances. The simulation results verify that the proposed method can effectively estimate the transient stability with significant simplicity and generality, which is practically useful to secure the operation and control for power electronics-dominated power systems.

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