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

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 propo...

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Bibliographic Details
Published in:Mathematical problems in engineering 2020, Vol.2020 (2020), p.1-9
Main Authors: Jia, Jingjing, Xu, Jianmei, Lv, Zihan, Che, Yanbo, Li, Ming
Format: Article
Language:English
Subjects:
Aircraft
Computer simulation
Converters
Design engineering
Electric power transmission
Electronics
Energy
Liapunov functions
Mathematical models
Methods
Neural networks
Simulation
Stability analysis
Systems stability
Transient stability
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Summary: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.
ISSN:1024-123X
1563-5147
DOI:10.1155/2020/4295094