Transformer-Less Cascaded Voltage Source Converter Based STATCOM

Authors

Rashmi Sharma
Indus University image/svg+xml , Indus University image/svg+xml
Vijay H Makwana
G H Patel College of Engineering and Technology
DOI: https://doi.org/10.52549/ijeei.v10i1.3483
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Published: 18-02-2022 • Issue: Vol. 10 No. 1: March 2022 • Section: Electrical_(Power)

Abstract

In this work, a transformer-less voltage source converter (VSC) based STATCOM is proposed with a combination of cascaded conventional three-phase voltage source inverters. This modular structure provides multilevel operation with reduced switch count and independent DC-link capacitors. The actual contribution of this paper is the transformer-less configuration of a conventional cascaded voltage source converter which provides reduced cost and volume as compared to other transformer-less converter configurations. The system provides reactive power compensation with better power quality when connected to the nonlinear power electronics load also. A simple control system is provided for balancing the Dc link capacitor voltage and reactive power compensation. The validation of the proposed model is analyzed with simulation using MATLAB/SIMULINK software and the results are obtained with different linear and nonlinear load configurations.
Keywords: Voltage Source Converter; STATCOM; PI control; Power Quality; Transformer less

Author Biographies

Rashmi Sharma

Ph.D Scholar, Gujarat Technological University, Gujarat, India & Assistant Professor, Electrical Engineering Department, Indus University, Ahmedabad

Vijay H Makwana
Professor, Department of Electrical Engineering,

G H Patel College of Engineering and Technology, Vallabh Vidyanagar, India

How to Cite

[1]
R. Sharma and V. H. Makwana, “Transformer-Less Cascaded Voltage Source Converter Based STATCOM”, IJEEI, vol. 10, no. 1, pp. 1–12, Feb. 2022, doi: 10.52549/ijeei.v10i1.3483.