Reactive Power Support in the Dynamic Voltage Stability Assessment of a Restructured Electric Power System

2006 ◽  
Author(s):  
R. M. Monteiro Pereira ◽  
Adelino J. C. Pereira ◽  
C. M. Machado Ferreira ◽  
J. A. Dias Pinto ◽  
F. P. Maciel Barbosa
Keyword(s):  
Power System ◽  
Electric Power ◽  
Voltage Stability ◽  
Reactive Power ◽  
Electric Power System ◽  
Stability Assessment ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability

scholarly journals Influence of the Load Models in the Dynamic Voltage Stability of an Electric Power System

2004 ◽  
Vol 1 (02) ◽  
pp. 364-370
Author(s):  
R.M. Monteiro Pereira ◽  
C.M. Machado Ferreira ◽  
J.A. Díaz Pinto ◽  
F.P. Maciel Barbosa
Keyword(s):  
Power System ◽  
Electric Power ◽  
Voltage Stability ◽  
Electric Power System ◽  
Load Models ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability

scholarly journals Hybrid PSO-Optimized ANFIS-Based Model to Improve Dynamic Voltage Stability

2019 ◽  
Vol 9 (4) ◽  
pp. 4384-4388 ◽  
Author(s):  
D. N. Truong ◽  
V. T. Bui
Keyword(s):  
Power System ◽  
Wind Power ◽  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Voltage Response ◽  
Inference System ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability ◽  
Wind Power System

The objective of this paper is to perform a hybrid design for an Adaptive Neuro-Fuzzy Inference System (ANFIS) optimized by Particle Swarm Optimization (PSO) to improve the dynamic voltage stability of a grid-connected wind power system. An onshore 99.2MW wind farm using Doubly Fed Induction Generator (DFIG) is studied. To compensate the reactive power absorbed from the power grid of the wind farm, a Static VAR Compensator (SVC) is proposed. To demonstrate the performance of the proposed hybrid PSO–ANFIS controller, simulations of the voltage response in time-domain are performed in Matlab to evaluate the effectiveness of the designed controller. From the results, it can be concluded that the proposed hybrid PSO-optimized ANFIS-based model can be applied to enhance the dynamic voltage stability of the studied grid-connected wind power system.

scholarly journals Dynamic Voltage Stability Assessment in Remote Island Power System with Renewable Energy Resources and Virtual Synchronous Generator

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5851
Author(s):  
Akito Nakadomari ◽  
Ryo Miyara ◽  
Talal Alharbi ◽  
Natarajan Prabaharan ◽  
Shriram Srinivasarangan Rangarajan ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Voltage Stability ◽  
Synchronous Generator ◽  
System Stability ◽  
Stability Assessment ◽  
Remote Island ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability ◽  
Virtual Synchronous Generator

Increasing the proportion of renewable energy generations in remote island power systems is becoming essential for realizing decarbonized society. However, since inverter-connected renewable energies have different generation characteristics from conventional generators, the massive penetration can adversely affect system stability. In particular, fault events in such weak remote systems can cause fast voltage collapse, and there is a need to assess dynamic voltage stability. This study attempts dynamic voltage stability assessment using the critical boundary index (CBI) and investigates the impact of the virtual synchronous generator (VSG) on dynamic voltage stability. A remote island power system and VSG are modeled, and time-domain simulations are conducted with case studies of fault events. The simulation results show the potential of CBI to use for dynamic voltage stability assessment. Furthermore, the VSG can provide suitable power output during fault events and improve dynamic voltage stability.

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