s Deepa - Panimalar Institute of Technology, India
s Rajesh Babu - Sathyabama University, India
m Ranjani - Sathyabama University, India

In this paper, a statcom without any energy storage devices is proposed to compensate network voltage during disturbances. This statcom utilizes a matrix converter in its topology which eliminates the DClink capacitor of conventional statcom. The modulation method for matrix converter which is used inthis paper is space vector modulation. There are some methods to improve power quality for sensitive loads. In this paper, Combination of improved multi objective Particle Swarm Optimization (PSO) algorithm with fuzzy membership function is used to determine the PI coefficients. The simulation results indicate the efficiency of proposed method

Statcom,PSO,Fuzzy,Voltage SAG,Matrix Converter