scholarly journals Modelling and Optimal Siting of Static VAR Compensator to Enhance Voltage Stability of Power System with Uncertain Load

2019 ◽  
Vol 74 (2-4) ◽  
pp. 111-116
Author(s):  
Suman Machavarapu ◽  
Mannam Gopala Rao ◽  
Pulipaka Rao
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Static Var Compensator

Optimal Placement of SVC Using Fuzzy and Firefly Algorithm

2015 ◽  
Vol 4 (4) ◽  
pp. 113
Author(s):  
P.SURESH BABU ◽  
P.B. CHENNAIAH ◽  
M. SREEHARI
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Firefly Algorithm ◽  
Optimal Placement ◽  
Loading Conditions ◽  
Static Var Compensator ◽  
Power Losses ◽  
Major Threat ◽  
New Approaches ◽  
Bus System

<p>Voltage stability is major phenomena in any power system network for reliability and continuity operation. But the tight operation of power system due to overloading or fault on the system which is evitable and major threat to the power system. So it is necessary to maintain the voltages within the constraints at the overloading conditions also by placing of Static VAR Compensator (SVC) at optimal locations. New approaches are used to find the placement and size of the SVC at different locations. Fuzzy is used to find the location and the size of the SVC is fined by the Firefly algorithm. This paper considers different loading conditions of the power system network (125,150,175over loading conditions). From the results we can conclude that the power losses are reduced and the voltages can be maintained within the limits .IEEE 14 bus, IEEE 30 bus system is taken for the implementing the above techniques.</p>

A novel approach for global voltage stability assessment of a power system incorporating static var compensator

2011 ◽  
Vol 22 (7) ◽  
pp. 1016-1026 ◽  
Author(s):  
Palukuru Nagendra ◽  
Sunita Halder nee Dey ◽  
Subrata Paul ◽  
Tanaya Datta
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Stability Assessment ◽  
Static Var Compensator ◽  
Novel Approach

A Comparative Study of BAT and Firefly Algorithms for Optimal Placement and Sizing of Static VAR Compensator for Enhancement of Voltage Stability

2015 ◽  
Vol 4 (1) ◽  
pp. 68-84 ◽  
Author(s):  
B. Venkateswara Rao ◽  
G.V. Nagesh Kumar
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Stability Index ◽  
Bat Algorithm ◽  
Transmission System ◽  
Optimal Location ◽  
System Stability ◽  
Optimal Placement ◽  
Static Var Compensator ◽  
Facts Devices

Modern electric power utilities are facing many challenges due to increasing power demand but the growth of power generation and transmission has been limited due to limited resources, environmental restrictions and right-of-way problems. These problems can be minimized by installing Flexible Alternating Current Transmission System (FACTS) devices in modern electric utilities to optimize the existing transmission system. Most effective use of the FACTS devices depend on the fact, how these devices are placed in the power system, i.e. the location and size. An optimal location and size of FACTS devices allows controlling its power flows and thus enhances the stability and reliability of the power systems. In this paper, Firefly Algorithm (FA) and BAT Algorithm (BAT) have been applied and compared to determine the optimal location and size of Static VAR Compensator (SVC) in a power system to improve voltage stability subjected to minimize the active power losses, fuel cost, branching loading and voltage deviation. The effectiveness of the proposed algorithms and improvement of power system stability has been demonstrated on IEEE 57 bus system using fast voltage stability index. The results obtained with variation of parameters of Firefly and BAT Algorithms has been studied and compared with Genetic Algorithm. The results are presented and analyzed.

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