Voltage Stability Enhancement using SVC in PSCAD Software
In modern power system, need for ﬂexibility, accuracy and fast response is growing everyday. Voltage instability affects the system's reliability and security. FACTS devices are used to restore voltage and to control the weak bus. SVC provides the fast acting dynamic compensation in case of severe fault. This paper is focused on voltage stability improvement of IEEE-14 bus test system. Simpliﬁed voltage stability index (SVSI) is calculated to identify the weakest bus of the system. All the analysis is being performed using PSCAD simulation software.
 J. Lakkireddy, R. Rastgoufard, I. Leevongwat, P. Rastgoufard, Steady state voltage stability enhancement using shunt and series facts devices, in: 2015 Clemson University Power Systems Conference (PSC), IEEE, 2015, pp. 1–5.
 P. Tomar, A. K. Singhal, Power system stability enhancement using upfc, Journal of Instrumentation Technology and Innovations 8 (3) (2019) 1–7.
 Choudekar, Pallavi, and Divya Asija. "Prediction of voltage collapse in power system using voltage stability indices." Proceeding of international conference on intelligent communication, control and devices. Springer, Singapore, 2017.
 P. Somasundaram, V. Jayakumar, K. Sundararaju, Congestion management using svc under deregulated power system, International Journal of Pure and Applied Mathematics 118 (20) (2018) 2307–2317.
 N. Mithulananthan, C. A. Canizares, J. Reeve, G. J. Rogers, Comparison of pss, svc, and statcom controllers for damping power system oscillations, IEEE transactions on power systems 18 (2) (2003) 786–792.
 Y. Ou, C. Singh, Assessment of available transfer capability and margins, IEEE Transactions on Power Systems 17 (2) (2002) 463–468.
 S. Gerbex, R. Cherkaoui, A. J. Germond, Optimal location of multi-type facts devices in a power system by means of genetic algorithms, IEEE transactions on power systems 16 (3) (2001) 537–544.
 Choudekar, Pallavi, S. K. Sinha, and Anwar Siddiqui. "Optimal location of SVC for improvement in voltage stability of a power system under normal and contingency condition." International Journal of System Assurance Engineering and Management 8.2 (2017): 1312-1318.
 J. Dixon, L. Moran, J. Rodriguez, R. Domke, Reactive power compensation technologies: State-of-the-art review, Proceedings of the IEEE 93 (12) (2005) 2144–2164.
 B. Mahdad, T. Bouktir, K. Srairi, Strategy of location and control of facts devices for enhancing power quality, in: MELECON 2006-2006 IEEE Mediterranean Electrotechnical Conference, IEEE, 2006, pp. 1068–1072.
 D. Mondal, A. Chakrabarti, A. Sengupta, Optimal placement and parameter setting of svc and tcsc using pso to mitigate small signal stability problem, International Journal of Electrical Power & Energy Systems 42 (1) (2012) 334–340.
 M. N. Nwohu, Voltage stability improvement using static var compensator in power systems, Leonardo Journal of Sciences 8 (14) (2009) 167–172.
 D. T. Kaur, S. Kakran, Transient stability improvement of long transmission line using svc, International Joural of Advanced research in Electrical, Electronics and Instrumentation Enginering 1 (4).
 P. Sahu, A. Pachori, M. Simulink, Power factor correction using svc with fuzzy logic controller, International Journal of Enhanced Research in Science Technology & Engineering 2 (4) (2013) 52–57.
 P. Kessel, H. Glavitsch, Estimating the voltage stability of a power system, IEEE Transactions on power delivery 1 (3) (1986) 346–354.
 B. Genˆet, J.-C. Maun, Voltage-stability monitoring using wide-area measurement systems, in: 2007 IEEE Lausanne Power Tech, IEEE, 2007, pp. 1712–1717.
 M. Dester, C. A. Castro, Multi-criteria contingency ranking method for voltage stability, Electric Power Systems Research 79 (1) (2009) 220–225.
 J. Vanishree, V. Ramesh, Optimization of size and cost of static var compensator using dragonﬂy algorithm for voltage proﬁle improvement in power transmission systems, International Journal of Renewable Energy Research (IJRER) 8 (1) (2018) 56–66.
 R. Agrawal, S. Bharadwaj, D. Kothari, Optimal location and sizing of svc considering transmission loss and installation cost using tlbo, in: 2015 Annual IEEE India Conference (INDICON), IEEE, 2015, pp. 1–6.
 V. K. Shende, P. Jagtap, Optimal location and sizing of static var compensator (svc) by particle swarm optimization (pso) technique for voltage stability enhancement and power loss minimization, proceedings of International Journal of Engineering Trends and Technology (IJETT)-Volume4 Issue6-June.