TY - JFULL AU - J. Chelladurai and G. Saravana Ilango and C. Nagamani and S. Senthil Kumar PY - 2008/4/ TI - Investigation of Various PWM Techniques for Shunt Active Filter T2 - International Journal of Electronics and Communication Engineering SP - 389 EP - 396 VL - 2 SN - 1307-6892 UR - https://publications.waset.org/pdf/5299 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 15, 2008 N2 - Pulse width modulation (PWM) techniques have been the subject of intensive research for different industrial and power sector applications. A large variety of methods, different in concept and performance, have been newly developed and described. This paper analyzes the comparative merits of Sinusoidal Pulse Width Modulation (SPWM) and Space Vector Pulse Width Modulation (SVPWM) techniques and the suitability of these techniques in a Shunt Active Filter (SAF). The objective is to select the scheme that offers effective utilization of DC bus voltage and also harmonic reduction at the input side. The effectiveness of the PWM techniques is tested in the SAF configuration with a non linear load. The performance of the SAF with the SPWM and (SVPWM) techniques are compared with respect to the THD in source current. The study reveals that in the context of closed loop SAF control with the SVPWM technique there is only a minor improvement in THD. The utilization of the DC bus with SVPWM is also not significant compared to that with SPWM because of the non sinusoidal modulating signal from the controller in SAF configuration. ER -