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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Vidyasagar Sugavanam
SRM Institute of Science and Technology
Control & Systems Engineering Electrical & Electronics Engineering

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Implementation of multicarrier PWM based 7-level Z-source cascaded H-bridge inverter Palanisamy Ramasamy; Vidyasagar Sugavanam; Kalyanasundaram Vakesan; Subbulakshmy Ramamurthi; Selvakumar Kuppusamy; Usha Sengamalai; Thamizh Thentral
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i1.pp322-329

Abstract

This paper elucidates the realization of multicarrier pulse width modulation (MC-PWM) based 7-level Z-source cascaded H-bridge inverter. MC-PWM technique is developed to generate switching pulses for Z-source inverter; it leads to boost the inverter output voltage with help of shoot through mode of operation. The output of Z-source inverter is connected to 7-level cascaded H-bridge inverter. Cascaded H-bridge inverter system much suitable for AC load drive, high voltage and high power and industrial applications. This proposed system provides reduced total harmonic distortion, improved stepped output voltage and current, nearly sinusoidal output voltage and reduced voltage stress across the switching devices. The inductors and capacitors values are selected based on the boosting level of Z-source inverter. The simulation results of proposed 7-level Z-source cascaded H-bridge inverter with MC-PWM technique is verified using MATLAB/Simulink.
A novel SVPWM for 3-phase to 5-phase conversion using matrix converter Palanisamy Ramasamy; Kalyanasundaram Vakesan; Vijayakumar Govindaraj; Shanmugasundaram Venkatarajan; Saumitra Chattopadhyay; Vidyasagar Sugavanam
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 4: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i4.pp2269-2276

Abstract

A novel matrix converter has been developed for 3-phase to 5-phase conversion using a novel space vector pulse width modulation. The matrix converter organized to generate 5-phase AC output voltage from 3-phase input voltage with help of SVPWM method; bidirectional power switches placed in matrix converter controlled by appropriate switching pulse. Space vector pulse width modulation (SVPWM) provides better utilization of applied input voltage, improved output voltage, reduced total harmonic distortion. The bidirectional switch used by the matrix converter decreases stress on the power switch and the influence of harmonic fluctuation in AC output voltage. When compared to traditional approaches, the suggested system offers improved output voltage and current control. Using MATLAB/Simulink and FPGA-cyclone controller, respectively, modelling and experimental results have been given to validate the proposed methodology.
Co-Authors Kalyanasundaram Vakesan Palanisamy Ramasamy Saumitra Chattopadhyay Selvakumar Kuppusamy Shanmugasundaram Venkatarajan Subbulakshmy Ramamurthi Thamizh Thentral Usha Sengamalai Vijayakumar Govindaraj