Publication Type : Journal Article
Publisher : International Journal of Research in Engineering and Technology (IJRET)
Source : International Journal of Research in Engineering and Technology (IJRET), Volume 5, Issue 8 (2016)
Campus : Bengaluru
School : School of Engineering
Department : Electronics and Communication
Verified : Yes
Year : 2016
Abstract : A 1-phase AC chopper circuit is rigged up and analyzed with single phase induction motor for input power factor, harmonic profile and efficiency of the converter using FPGA real time controller. The various PWM techniques such as symmetrical ramp-DC PWM (SRDPWM), asymmetrical ramp-triangular PWM (ARTPWM), asymmetrical sinusoidal PWM type-1 [ASPWM1] and asymmetrical sinusoidal PWM type-2 [ASPWM2] techniques are generated using FPGA real time controller in order to analyze these electrical parameters. It is observed from experimental results that the SRDPWM technique gives lesser total harmonic distortion [THD] of output voltage and input current than other techniques. It is also observed that the ASPWM1 switching strategy gives high input power factor, more output voltage and high efficiency and moderate improvement of harmonic profile for the entire range of modulation index MI compared to other PWM techniques. Hence ASPWM1 technique is preferred for AC chopper for better input power factor, output voltage, harmonic profile and efficiency of the converter than other techniques that renders easy filteration at lower cost.
Cite this Research Publication : Venkatesha K. and Vidya H. A., “Analysis of Symmetrical & Asymmetrical PWM Based Three Phase AC to AC Converter for Power Quality Improvement”, International Journal of Research in Engineering and Technology (IJRET), vol. 5, no. 8, 2016.