Small-signal state-space modeling of modular multilevel converters for system stability analysis

2015 ◽  
Author(s):  
Gilbert Bergna Diaz ◽  
Jon Are Suul ◽  
Salvatore D'Arco
Keyword(s):  
Stability Analysis ◽  
State Space ◽  
System Stability ◽  
Small Signal ◽  
Multilevel Converters ◽  
Space Modeling ◽  
Modular Multilevel Converters ◽  
State Space Modeling ◽  
System Stability Analysis

scholarly journals State Space Modeling and Stability Analysis of a VSC-HVDC System for Exchange of Energy

2020 ◽  
Vol 22 (6) ◽  
pp. 413-426
Author(s):  
Asma Rekik ◽  
Ghada Boukettaya
Keyword(s):  
Stability Analysis ◽  
State Space ◽  
Offshore Wind ◽  
Stable Operation ◽  
Transmission Systems ◽  
Hvdc System ◽  
Hvdc Transmission ◽  
Space Modeling ◽  
State Space Modeling ◽  
The Stability

Nowadays, relevant actors are searching for solutions to produce energy with a low impact on the environment. Indeed, transmitting power via large distances with maintaining low losses is one of the main challenges. To improve electricity communication between countries and offshore wind, a new interconnections line must be built. Therefore, Voltage Source Converter High Voltage Direct Current (VSC-HVDC) transmission is incoming as the exceptive technology in order to address the challenges related to the integration of future offshore wind power plants. In spite of its many advantages, VSC-based HVDC transmission systems can experience unexpected instability and interaction phenomena: Small disturbances that occur continually in VSC-HVDC transmission systems due to the complex VSC based interconnections and an important number of components with non-linear nature that may cause failure. Thus, before installing the HVDC system, there is a significant need for studying a hybrid AC-DC system to guarantee the reliable and stable operation. This paper deals with the stability of a VSC-HVDC system by the use of a small signal stability method; such procedure enables to study the stability of a linearized VSC-HVDC system through state-space modeling and eigenvalue-based stability analysis.

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