Line Stability Indices and Contingency Screening by Sensitivity Factors Based Static Voltage Stability Study

2018 ◽  
pp. 129-138
Author(s):  
Rinkesh A. Jain ◽  
Darshan B. Rathod
Keyword(s):  
Voltage Stability ◽  
Stability Study ◽  
Contingency Screening ◽  
Static Voltage Stability ◽  
Sensitivity Factors ◽  
Stability Indices

scholarly journals Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Natakorn Thasnas ◽  
Apirat Siritaratiwat
Keyword(s):  
Optimal Power Flow ◽  
Voltage Stability ◽  
Stability Margin ◽  
Stability Index ◽  
System Stability ◽  
Line Voltage ◽  
Voltage Stability Index ◽  
Static Voltage Stability ◽  
Voltage Stability Margin ◽  
Stability Indices

Nowadays, the changes of economic, environment, and regulations are forcing the electric utilities to operate systems at maximum capacity. Therefore, the operation and control of power system to improve the system stability has been receiving a great deal of attention. This paper presents an approach for enhancing the static voltage stability margin and reducing the power losses of the system with voltage security-constrained optimal power flow (VSC-OPF) that is based on static line voltage stability indices. The control approaches incorporate the voltage stability criteria into the conventional OPF. The minimization of the summation of fast voltage stability index (FVSI), line stability index (Lmn), and line voltage stability index (LVSI) is used as the objective functions. The performance and effectiveness of the proposed control approaches are evaluated on the standard IEEE 30-bus, 57-bus, and 118-bus test systems under normal and contingency conditions. The comparison analysis is carried out with different cases including minimization of generation cost. The proposed control approaches indicate the promising results and offer efficient countermeasures against the voltage instability of the system.

Load modelling in static voltage stability indices calculation

1999 ◽  
Vol 9 (5) ◽  
pp. 305-308 ◽  
Author(s):  
R. B. Prada ◽  
J. O. R. Dos Santos
Keyword(s):  
Voltage Stability ◽  
Static Voltage Stability ◽  
Stability Indices

Static Voltage Stability Margin Enhancement Using Shunt Capacitor, SVC and STATCOM

2015 ◽  
Vol 781 ◽  
pp. 288-291 ◽  
Author(s):  
Natakorn Thasnas ◽  
Apirat Siritaratiwat
Keyword(s):  
Power Flow ◽  
Voltage Stability ◽  
Stability Margin ◽  
Test System ◽  
Stability Study ◽  
Flow Process ◽  
Static Voltage Stability ◽  
Voltage Stability Margin ◽  
Shunt Compensation ◽  
Shunt Capacitor

This paper presents the study of static voltage stability margin enhancement using shunt capacitor, SVC and STATCOM. AC and DC representations of shunt compensation devices are used in the continuation power flow process in static voltage stability study. Various performance measures including PV curves, voltage profiles, and power losses are compared. Placement and sizing techniques of shunt compensation devices are proposed for loading margin enhancement. The study has been carried out on the IEEE 14 bus test system.

Analysis of Voltage Stability Indices for Radial Distribution Systems

2008 ◽  
Vol 2 (1) ◽  
pp. 27-35
Author(s):  
S. Sivanagaraju ◽  
G. Sreenivasan ◽  
K. Nagaraju
Keyword(s):  
Radial Distribution ◽  
Distribution Systems ◽  
Voltage Stability ◽  
Stability Indices
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