Impact of distributed generators on voltage stability in transmission network

2015 ◽  
Author(s):  
Essam Z. Abdel-Aziz ◽  
Junaid Ishaq ◽  
Rayed Al-Harthi
Keyword(s):  
Voltage Stability ◽  
Transmission Network ◽  
Distributed Generators

scholarly journals An Optimal Transmission Network Configuration for Voltage Stability Enhancement

2001 ◽  
Vol 121 (7) ◽  
pp. 893-898 ◽  
Author(s):  
Koichi Nara ◽  
Yuji Mishima ◽  
Tomomi Takeyama ◽  
Yasuyuki Tada ◽  
Atsushi Kuritad
Keyword(s):  
Voltage Stability ◽  
Transmission Network ◽  
Network Configuration ◽  
Voltage Stability Enhancement ◽  
Stability Enhancement

scholarly journals Application of SVC to mitigate voltage instability in a Wind system connected with GRID

2011 ◽  
pp. 90-96
Author(s):  
Ramaprasad Panda ◽  
Prasant kumar Satpathy ◽  
Subrata Paul
Keyword(s):  
Simulation Study ◽  
Power Loss ◽  
Voltage Stability ◽  
Test System ◽  
Wind System ◽  
Interconnected Power System ◽  
Voltage Instability ◽  
Wind Generators ◽  
Distributed Generators ◽  
System Power

This paper presents an approach for enhancement of voltage stability of an interconnected power system employing distributed generators (DG) along with conventional generators. When the DG is from wind then voltage instability in the system is of great concern. In this paper a 28 bus test system is considered where the wind penetration varies from 10% to 99% over the day. This causes a large variation at different bus voltages violating the grid code. A shunt FACT device (SVC) is used to mitigate this problem at the buses connected to wind generators. Thereafter, suitable locations for the SVC placement are identified to enhance the voltage stability and reduce system power loss. The simulation study is carried out on the system using the software program developed in Matpower-4. The same is verified by using the software MiPower®.

Analytical tools to assess the voltage stability of induction-based distributed generators

2012 ◽  
Vol 36 (1) ◽  
pp. 31-39 ◽  
Author(s):  
A.P. Grilo ◽  
P.C.M. Meira ◽  
J.C.M. Vieira ◽  
W. Freitas ◽  
R.C. Bansal
Keyword(s):  
Voltage Stability ◽  
Distributed Generators ◽  
Analytical Tools

scholarly journals Voltage stability of distributed generators by means of discrete abstraction

2015 ◽  
Author(s):  
Marjorie Cosson ◽  
Herve Gueguen ◽  
Didier Dumur ◽  
Cristina Stoica Maniu ◽  
Vincent Gabrion ◽  
...  
Keyword(s):  
Voltage Stability ◽  
Distributed Generators

scholarly journals Voltage stability analysis using STATCOM

2021 ◽  
Author(s):  
Umang Patel
Keyword(s):  
Power System ◽  
Power Control ◽  
Voltage Stability ◽  
Reactive Power ◽  
Stability Margin ◽  
Power System Stability ◽  
System Stability ◽  
Transmission Network ◽  
Voltage Stability Margin ◽  
Three Phase

Power system stability is gaining importance because of unusual growth in power system. Day by day use of nonlinear load and other power electronics devices created distortions in the system which creates problems of voltage instability. Voltage stability of system is major concerns in power system stability. When a transmission network is operated near to their voltage stability limit it is difficult to control active-reactive power of the system. Our objectives are the analysis of voltage stability margin and active-reactive power control in proposed system which includes model of STATCOM with aim to analyse its behavior to improve voltage stability margin and active-reactive power control of the system under unbalanced condition. The study has been carried out using MATLAB Simulation program on three phase system connected to unbalanced three phase load via long transmission network and results of voltage and active-reactive power are presented. In future work, we can do power flow calculation of large power system network and find the weakest bus of the system and by placing STATCOM at that bus we can improve over all stability of the system

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