*Masters Program, Department of Electrical Engineering, National Institute of Technical Teachers ’Training and Research, Chandigarh, India
**Assistant Professor, Department of Electrical Engineering, National Institute of Technical Teachers' Training and Research, Chandigarh, India
Online published on 27 February, 2017.
This paper deals with the simulation of a unified series-shunt compensator (USSC), which is aimed at mitigating various power quality issues in power distribution systems. The USSC model comprises of two 12-pulse inverters, one connected in series and another in shunt to the system. A generalized sinusoidal pulse width modulation (SPWM) switching technique has been developed in the proposed controller design for fast control action of the USSC. Simulations were carried out using the MATLAB/SIMULINK to examine the performance of the USSC model. Simulation results from the proposed model demonstrated the capabilities of a unified series shunt compensator (USSC) in performing voltage sag compensation, flicker reduction, voltage unbalance mitigation, UPS mode, power-flow control and harmonics elimination. The USSC has mitigated various power quality problems giving better performance.
Unified series shunt compensatorGTO switches, Power quality SPWM technique Power quality mitigation
