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Ch. Lokeshwar Reddy
CVR College of Engineering
Control & Systems Engineering Electrical & Electronics Engineering

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Performance Comparison of Star Connected Cascaded STATCOM Using Different PWM Techniques Ch. Lokeshwar Reddy; P. Satish Kumar; M. Sushama
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 8, No 3: September 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (784.242 KB) | DOI: 10.11591/ijpeds.v8.i3.pp1303-1319

Abstract

Five control algorithms are presented in this paper for STATCOM that meets the requirement of load reactive power and correspondingly voltage balancing of isolated dc capacitors for H-bridges. The control techniques used for an inverter in this paper are Sinusoidal Phase Shifted Carrier (SPSC) PWM, Sinusoidal Phase Disposition (SPD) PWM Third Harmonic Injected Phase Shifted Carrier (THIPSC) PWM, Space Vector Phase Shifted Carrier (SVPSC) PWM, and Space Vector Phase Disposition (SVPD) PWM techniques.  The STATCOM performance for the different load changes is simulated in MATLAB environment. The performance parameters such as balancing the DC link voltage, THD for the STATCOM output currents, voltages, and reactive components supplied by the STATCOM to the load are compared for all the control strategies.
Co-Authors M. Sushama P. Satish Kumar