• S.Sangeetha
• D.Poornima

Reliable power from renewable energy sources have become very important in today’s energy scenario mainly due to the shortage of fossil fuels. Wind energy is one of the promising renewable energy sources for the future. But the fluctuating nature of wind introduces power quality issues like harmonics and deviations in voltage waveform in the grid, which in turn affects the stability of the entire grid. Another issue is that power system grid is a nonlinear and dynamic system which requires ample generation of real and reactive power to supply its loads , consumer and losses in the system. when the generation of real and reactive power is insufficient to meet its load and losses, it may not provide reliable and stable power supply. Increased demand may be satisfied without changing the existing power system infrastructure with the help of FACTS devices. This paper aims at reducing the power quality issues using STATCOM along with a controller. STATCOM is connected at the Point of Common Coupling (PCC) where the wind energy system is connected to the grid. The distortions in the waveform are reduced by the proper switching of the semiconductor devices of the STATCOM. The switching is controlled using a PI controller with space vector modulation (SVPWM). The gains of the PI controller are tuned using (Particle Swarm Optimisation Technique (PSO). The power quality is then analyzed with Total Harmonics Distortion (THD) as the main performance measure for which the system is simulated in SIMULINK/MATLAB. To analyze the performance, parameters like real power, reactive power, voltage and THD are evaluated at PCC. The THD of the proposed system is found to be 4.78% which is within IEEE std 519-1992 standards. It is found that the performance of the PSO controller connected wind energy conversion system is improved compared to the system without PSO.

STATCOM, PSO, Grid Connected, Wind energy, SVPWM, FACTS, THD

"Analysis of STATCOM with PSO Controller in Grid Connected Wind Energy System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.1178-1182, February-2019, Available :http://www.jetir.org/papers/JETIRAB06218.pdf

"Analysis of STATCOM with PSO Controller in Grid Connected Wind Energy System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp1178-1182, February-2019, Available at : http://www.jetir.org/papers/JETIRAB06218.pdf