No. 5. Simulation of Voltage Stability Enhancement at Primary Substation Using Static VAR Compensator Manuscript Received: 13 February 2023, Accepted: 25 March 2023, Published: 15 September 2023, ORCiD: 0009-0001-5294-2513

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Myat Lay Phyu


For the voltage stability enhancement of power system, the reactive power compensation is vital important. With the advancement in technology, the Flexible AC Transmission System Devices (FACTS) are widely used for stability improvement. In the primary substation, the stability is poor due to load conditions and system faults. In this research, the voltage stability enhancement for a Primary Substation using Static VAR (volt-amp reactive) compensator (SVC) is presented. SVC can be used to improve system voltage stability and addition of damping control. With the application of SVC, the voltage stability can be improved under normal condition as well as under contingency conditions. Shunt reactive power sources, including capacitive and inductive, are controlled by high power electronic switching devices in an SVC to enhance voltage stability. The goal of this attempt is to use SVC to improve the voltage stability of the 230/33 kV system. To evaluate the voltage stability improvement by SVC, a simulation model is implemented in Matlab/Simulink and performance analysis are carried out based on the simulation results.

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M. L. Phyu, “Voltage Stability Enhancement for Power Transmission System using Static VAR Compensator,” Int. J. Sci. and Eng. Appl., vol. 8(12), pp. 498-502, 2019.

V. Krishnan and J. D. McCalley, “Role of Induction Motors in Voltage Instability and Coordinated Reactive Power Planning,” Induction Motors, InTech, 2012.

J. J. Granger and W. D. Stevenson, Power System Analysis, New York, McGraw-Hill, 1994.

J. Segundo and A. Medina-Rios, Analysis of Power Electronic Controllers in Electric Power Systems using Simulink, InTech, pp. 1-9, 2012.

L. Zhang, Study of FACTS/ESS Applications in Bulk Power System, PhD Thesis, Virginia Polytechnic Institute and State University, 2006.