Fast calculation of a voltage stability index of power systems

1997 ◽  
Vol 12 (4) ◽  
pp. 1555-1560 ◽  
Author(s):  
Young-Huei Hong ◽  
Ching-Tsai Pan ◽  
Wen-Wei Lin
Keyword(s):  
Power Systems ◽  
Voltage Stability ◽  
Stability Index ◽  
Fast Calculation ◽  
Voltage Stability Index

scholarly journals Voltage stability index and APFC for performance improvement of modern power systems with intense renewables

2019 ◽  
Vol 2019 (18) ◽  
pp. 5187-5192 ◽  
Author(s):  
Pradeep Singh ◽  
Rajive Tiwari ◽  
Mukesh Kumar Shah ◽  
Khaleequr Rahman Niazi ◽  
Nand Kishor Meena ◽  
...  
Keyword(s):  
Power Systems ◽  
Performance Improvement ◽  
Voltage Stability ◽  
Stability Index ◽  
Voltage Stability Index

Fast calculation of a voltage stability index

1992 ◽  
Vol 7 (1) ◽  
pp. 54-64 ◽  
Author(s):  
P.-A. Lof ◽  
T. Smed ◽  
G. Andersson ◽  
D.J. Hill
Keyword(s):  
Voltage Stability ◽  
Stability Index ◽  
Fast Calculation ◽  
Voltage Stability Index

scholarly journals TRAINING EFFECTS ON NEURAL NETWORK METHODS FOR VOLTAGE STABILITY INDEX COMPUTATION

2014 ◽  
pp. 144-147
Author(s):  
LEELA SALIM ◽  
ANISH FRANCIS ◽  
Tibin Joseph
Keyword(s):  
Neural Network ◽  
Power Systems ◽  
Voltage Stability ◽  
Reactive Power ◽  
Stability Index ◽  
Real Field ◽  
Stability Assessment ◽  
Voltage Stability Index ◽  
Network Methods ◽  
Assessment Techniques

Voltage stability assessment plays a key role in operations of power systems. Neural network based assessment techniques are gaining a lot of attention in this area. In this work, we presents the effects of training parameters on assessment of voltage stability index based on the real field data .The stress on the bus is analyzed on the basis of real and reactive power, and the changes in the index based on contingencies in the system is presented. The work is focused on radial distribution power systems and is based on Kerala grid, India.

Application of UPFC for enhancement of voltage profile and minimization of losses using Fast Voltage Stability Index (FVSI)

2012 ◽  
Vol 61 (2) ◽  
pp. 239-250 ◽  
Author(s):  
M. Kumar ◽  
P. Renuga
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Reactive Power ◽  
Optimization Technique ◽  
Optimal Solution ◽  
Stability Index ◽  
Test System ◽  
Unified Power Flow Controller ◽  
Voltage Profile ◽  
Voltage Stability Index

Application of UPFC for enhancement of voltage profile and minimization of losses using Fast Voltage Stability Index (FVSI)Transmission line loss minimization in a power system is an important research issue and it can be achieved by means of reactive power compensation. The unscheduled increment of load in a power system has driven the system to experience stressed conditions. This phenomenon has also led to voltage profile depreciation below the acceptable secure limit. The significance and use of Flexible AC Transmission System (FACTS) devices and capacitor placement is in order to alleviate the voltage profile decay problem. The optimal value of compensating devices requires proper optimization technique, able to search the optimal solution with less computational burden. This paper presents a technique to provide simultaneous or individual controls of basic system parameter like transmission voltage, impedance and phase angle, thereby controlling the transmitted power using Unified Power Flow Controller (UPFC) based on Bacterial Foraging (BF) algorithm. Voltage stability level of the system is defined on the Fast Voltage Stability Index (FVSI) of the lines. The IEEE 14-bus system is used as the test system to demonstrate the applicability and efficiency of the proposed system. The test result showed that the location of UPFC improves the voltage profile and also minimize the real power loss.

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