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Enhancement of Power Handling Capability by Static Synchronous Series Compensator

Chaitanya V. Deshpande, Sangeeta D. Jain (Kotecha)

A power system is becoming more complex and heavily loaded day by day. Earlier electric power systems were small and localized. Thus, Real and reactive power compensation in transmission line is essential which will improve the stability of ac system. Flexible Alternating Current Transmission System (FACTS) technology provides new opportunity to control the power and enhancing the capacity of the present as well as new lines. The Static Synchronous Series Compensator (SSSC) is newer generation of FACTS device which enables control of active and reactive power and enhancement of power transfer capability of transmission line. This paper describes theory and modelling technique of SSSC using multi level (Three) inverter with Sinusoidal Pulse Width Modulation technique and dq0 transformation using MATLAB Simulink.